keri pxl-250_sb-293_technical

Keri Systems

PXL-250 Tiger Controllerand SB-293 Satellite Board

Technical Reference Manual v5.5

$39.00 USD

© 1999, 2000, 2001 Keri Systems, Inc. - ALL RIGHTS RESERVEDDocument Number 01836-004, Revision 5.5 – March, 2003

Keri Systems, PXL-250, SB-293, Tiger Controller, and Doors are trademarks of Keri Systems, Inc.

Windows is a trademark of Microsoft Corporation.Other product names are trademarks or registered trademarks of their owners.

Keri Systems, Inc. reserves the right to change, without notice, product offerings or specifications.

No part of this publication may be reproduced in any form without permission from Keri Systems, Inc.

Keri Systems, Inc. Technical Reference Manual – PXL-250 and SB-293

Table of Contents

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11The PXL-250 Tiger Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11The SB-293 Satellite Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Proximity - Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 16Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Operating Temperature/Humidity Range . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Controller Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Current Draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Controller Memory Retention. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Output Relay Contact Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Input Device Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Cable Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19RS-232 Serial Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19RS-485 Network Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Input Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Earth Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Keri Systems Proximity Readers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Wiegand Compatible Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Input and Output Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

PC/Doors Access Control Software Requirements . . . . . . . . . . . . . 21Photo Badge Management Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . 21

System Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Earth Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Electromagnetic Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22EMI Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Separating Power Cables from Network and Reader Cables . . . . . . . . . 23

Transient Suppression. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Communication with the Host Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

PC COM Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Ethernet TCP/IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

PXL-250/SB-293 System Installation . . . . . . . . . . . . . . . . . . . . . . . 25Advance Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Utility Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Where Should Controllers be Installed? . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Central Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Distributed Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Installing the Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26The Enrollment Reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Where Should Cables be Routed? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

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Technical Reference Manual – PXL-250 and SB-293 Keri Systems, Inc.

RS-485 Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28PXL-250W Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28SB-293 Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Installing the SB-293 Satellite Board onto the PXL-250 Controller . . . . . . 30Wiring Connections to the Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Understanding Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . 32Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Door Status Switch Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Request to Exit Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Auxiliary Request to Exit Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Global Unlock Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33General Purpose Input – SB-293 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Output Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Lock Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Fail-Safe Lock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Fail-Secure Lock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Alarm Out Relay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Door Held Open Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36General Purpose Output Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Normally Closed Relay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Normally Open Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Wiring Connections – PXL-250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Terminal Block Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40TB-5/TB-6 – Reader Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Proximity Reader Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Wiegand Compatible Reader Connection. . . . . . . . . . . . . . . . . . . . . . . . 42

TB-4 – Global Unlock or Auxiliary RTE Input Connection . . . . . . . . . . . . 45Global Unlock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45Auxiliary RTE A-Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

TB-4 – Request to Exit Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47TB-4 – Door Status Switch Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48TB-3 – Alarm Relay Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50TB-3 – Lock Relay Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52TB-2 – Earth Ground/12 VDC Power Connection . . . . . . . . . . . . . . . . . . . . 54TB-1 – RS-485 Controller Network Connection . . . . . . . . . . . . . . . . . . . . . 55RS-232 Controller/PC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Direct PC to Controller Serial Connection . . . . . . . . . . . . . . . . . . . . . . . 58PC/DB-9F to PXL-250/DB-9M Direct Serial Connection . . . . . . . . 59PC/DB-25F to PXL-250/DB-9M Direct Serial Connection . . . . . . . 60

Modem to Controller Serial Connection. . . . . . . . . . . . . . . . . . . . . . . . . 61Modem/DB-25M to PXL-250/DB-9M Cable Wiring . . . . . . . . . . . 62Modem/DB-9M to PXL-250/DB-9M Cable Wiring . . . . . . . . . . . . 63Modem Adapter Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . 64

Modem to Personal Computer Serial Connection . . . . . . . . . . . . . . . . . 65Modem/DB-25M to PC/DB-9F Cable Wiring . . . . . . . . . . . . . . . . . 66Modem/DB-25M to PC/DB-25F Cable Wiring . . . . . . . . . . . . . . . . 67

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Modem/DB-9M to PC/DB-9F Cable Wiring . . . . . . . . . . . . . . . . . . 68Modem/DB-9M to PC/DB-25F Cable Wiring . . . . . . . . . . . . . . . . . 69

Wiring Connections - SB-293. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71Terminal Block Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72Two-Door Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

TB-7 - Lock Relay Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73TB-7 - Alarm Relay Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75TB-10 - Door Held Open Alarm Relay Connection . . . . . . . . . . . . . . . . 77TB10 - General Purpose Output Relay Connections . . . . . . . . . . . . . . . 80TB-8 - Door Status Switch Input Connection. . . . . . . . . . . . . . . . . . . . . 82TB-8 - Request to Exit Input Connection . . . . . . . . . . . . . . . . . . . . . . . . 83TB-8 - Auxiliary Request to Exit Input Connection. . . . . . . . . . . . . . . . 84TB-8/TB-9 - General Purpose Input Connections . . . . . . . . . . . . . . . . . 85

Additional Inputs/Outputs Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 87TB-7/TB-10 - General Purpose Output Relay Connections . . . . . . . . . . 87TB-8/TB-9 - General Purpose Input Connection . . . . . . . . . . . . . . . . . . 89

System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91Powering the System for the First Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Verify 12 VDC Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91Verify Wiegand Compatible Reader Supply Voltage. . . . . . . . . . . . . . . 92Resetting the Controller's RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92Controllers with Modems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94Viewing Controller Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94Setting Controller Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94Master Controller Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95Proximity Reader Responses to Access Control Events. . . . . . . . . . . . . . . . 96I/O Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Periodic Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97Communication LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98Power LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Fuse LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98Power/Voltage LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Lock and Alarm LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

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Table of FiguresFigure 1-1: A Basic Access Control Network with Options . . . . . . . . . . . . . . . 14Figure 1-1: A Basic Access Control Network with Options . . . . . . . . . . . . . . . 15Figure 2-1: Proximity - Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . 16Figure 7-1: Setting the JP4 Jumper on PXL-250W Controllers . . . . . . . . . . . . . 29Figure 7-2: Setting JP12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Figure 7-3: Satellite Board/Controller Installation . . . . . . . . . . . . . . . . . . . . . . . 31Figure 9-1: The PXL-250 Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Figure 9-2: Installing Wiring and Removing a Terminal Block. . . . . . . . . . . . . 40Figure 9-3: Keri Systems Proximity Reader Connections . . . . . . . . . . . . . . . . . 42Figure 9-4: Wiegand Compatible Reader Connections . . . . . . . . . . . . . . . . . . . 42Figure 9-5: Global Unlock Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 45Figure 9-6: Auxiliary RTE A-Door Input Connections . . . . . . . . . . . . . . . . . . . 46Figure 9-7: Request to Exit Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . 47Figure 9-8: Door Status Switch Input Connections . . . . . . . . . . . . . . . . . . . . . . 49Figure 9-9: Alarm Relay Output Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 51Figure 9-10: Fail-Safe Lock Relay Output Connections . . . . . . . . . . . . . . . . . . 52Figure 9-11: Fail-Secure Lock Relay Output Connections . . . . . . . . . . . . . . . . 53Figure 9-12: Earth Ground and 12 VDC Power Connections . . . . . . . . . . . . . . 54Figure 9-13: RS-485 Network Communication Connections. . . . . . . . . . . . . . . 56Figure 9-14: PC/DB-9F to PXL-250/DB-9M Cable Wiring . . . . . . . . . . . . . . . 59Figure 9-15: PC/DB-25F to PXL-250/DB-9M Cable Wiring . . . . . . . . . . . . . . 60Figure 9-16: Modem/DB-25M to PXL-250/DB-9M Cable Wiring . . . . . . . . . . 62Figure 9-17: Modem/DB-9M to PXL-250/DB-9M Cable Wiring . . . . . . . . . . . 63Figure 9-18: Modem/Adapter Cable/Controller Connection . . . . . . . . . . . . . . . 64Figure 9-19: Modem/DB-25M to PC/DB-9F Cable Wiring. . . . . . . . . . . . . . . . 66Figure 9-20: Modem/DB-25M to PC/DB-25F Cable Wiring. . . . . . . . . . . . . . . 67Figure 9-21: Modem/DB-9M to PC/DB-9F Cable Wiring. . . . . . . . . . . . . . . . . 68Figure 9-22: Modem/DB-9M to PC/DB-25F Cable Wiring. . . . . . . . . . . . . . . . 69Figure 10-1: The SB-293 Satellite Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71Figure 10-2: Installing Wiring and Removing a Terminal Block. . . . . . . . . . . . 72Figure 10-3: Fail-Safe Lock Relay Output Connections . . . . . . . . . . . . . . . . . . 73Figure 10-4: Fail-Secure Lock Relay Output Connections . . . . . . . . . . . . . . . . 74Figure 10-5: Alarm Relay Output Connections . . . . . . . . . . . . . . . . . . . . . . . . . 76Figure 10-6: Door Held Open Alarm Relay Output Connections – A-Door . . . 78Figure 10-7: Door Held Open Alarm Relay Output Connections – B-Door . . . 79Figure 10-8: Normally Open General Purpose Relay Output Connections - Two-Door Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81Figure 10-9: Normally Closed General Purpose Relay Output Connections - Two-Door Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81Figure 10-10: Door Status Switch Input Connections . . . . . . . . . . . . . . . . . . . . 82Figure 10-11: Request to Exit Input Connections . . . . . . . . . . . . . . . . . . . . . . . 83Figure 10-12: Auxiliary Request to Exit Input Connections . . . . . . . . . . . . . . . 84Figure 10-13: General Purpose Input Connections - Two-Door Configuration . 86

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Figure 10-14: Normally Open General Purpose Relay Output Connections - General Purpose I/O Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88Figure 10-15: Normally Closed General Purpose Relay Output Connections - General Purpose I/O Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88Figure 10-16: General Purpose Input Connections - Additional I/O Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90Figure 11-1: Wiegand 12 VDC Warning LED. . . . . . . . . . . . . . . . . . . . . . . . . . 92Figure 11-2: Close-Up of JP-3, S1, and Address Display LEDs . . . . . . . . . . . . 93Figure 11-3: PXL-250 Controller Standard Operation Message . . . . . . . . . . . . 94Figure 12-1: Modem/Controller Communication LEDs . . . . . . . . . . . . . . . . . . 97

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Table of TablesTable1: Proximity Reader Current Draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Table2: Maximum Cable Lengths by Wire Gauge for Keri Systems Proximity Readers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Table3: Proximity Reader Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Table4: Single-Line LED Wiegand Compatible Reader Connections . . . . . . . . 43Table5: Dual-Line LED Wiegand Compatible Reader Connections . . . . . . . . . 43Table6: Essex Keypad Wiegand Compatible Reader Connections . . . . . . . . . . 44Table7: Global Unlock Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45Table8: Auxiliary RTE A-Door Input Connections . . . . . . . . . . . . . . . . . . . . . . 46Table9: Request to Exit Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Table10: Door Status Switch Input Connections . . . . . . . . . . . . . . . . . . . . . . . . 48Table11: Alarm Output Relay Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50Table12: Lock Relay Output Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52Table13: Earth Ground and 12 VDC Power Connections . . . . . . . . . . . . . . . . . 54Table14: RS-485 Network Communication Connections . . . . . . . . . . . . . . . . . 55Table15: PC/DB-9F to PXL-250/DB-9M Cable Wiring . . . . . . . . . . . . . . . . . . 59Table16: PC/DB-25F to PXL-250/DB-9M Cable Wiring . . . . . . . . . . . . . . . . . 60Table17: Modem/DB-25M to PXL-250/DB-9M Cable Wiring . . . . . . . . . . . . . 62Table18: Modem/DB-9M to PXL-250/DB-9M Cable Wiring . . . . . . . . . . . . . . 63Table19: Modem/DB-25M to PC/DB-9F Cable Wiring . . . . . . . . . . . . . . . . . . 66Table20: Modem/DB-25M to PC/DB-25F Cable Wiring . . . . . . . . . . . . . . . . . 67Table21: Modem/DB-9M to PC/DB-9F Cable Wiring . . . . . . . . . . . . . . . . . . . 68Table22: Modem/DB-9M to PC/DB-25F Cable Wiring . . . . . . . . . . . . . . . . . . 69Table23: Lock Relay Output Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73Table24: Alarm Output Relay Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75Table25: Door Held Open Alarm Output Relay Connections A-Door . . . . . . . 78Table26: Door Held Open Alarm Output Relay Output Connections B-Door. . 79Table27: General-Purpose Output Relay Connections – Two-Door Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80Table28: Door Status Switch Input Connections . . . . . . . . . . . . . . . . . . . . . . . . 82Table29: Request to Exit Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 83Table30: Auxiliary Request to Exit Input Connections . . . . . . . . . . . . . . . . . . . 84Table31: General Purpose Input Connections – Two-Door Configuration . . . . 85Table32: General-Purpose Output Relay Connections – Additional I/O Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87Table33: General-Purpose Input Connections – Additional I/O Configuration . 89Table34: Proximity Reader Responses to Access Control Events . . . . . . . . . . . 96

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1.0 FeaturesNOTE: This Technical Reference manual was written to support a new revision of the PXL-250 PCB (released July 2000). This PCB can be identified by its lack of a removable receiver board on the lower left corner of the PCB. If you are working with the previous revision of the PXL-250, please refer to v4.1 of the Technical Reference manual (P/N 01836-003).

1.1 The PXL-250 Tiger ControllerThe PXL-250 Tiger Controller is a smart entry controller which contains all the intelligence and necessary inputs/outputs to manage one door and two readers. In an access control system, from 1 to 128 PXL-250 controllers can be networked, controlling from 1 to 128 doors. With the addition of a SB-293 Satellite Board, each PXL-250 can manage a second door, one reader per door, for a possible total of 256 doors. Refer to Figure 1-1 on page 14 for a basic diagram of a PXL-250 access control network and its options.

Standard PXL-250 features include:

Access Control• one door (two doors if adding the SB-293 Satellite Board)• two reader types

proximity or Wiegand

Inputs and Outputs• three inputs

– door status switch– request to exit (RTE)AND EITHER– global unlock or auxiliary RTE input (user configurable on the master

controller)OR– auxiliary RTE input (user configurable on slave controllers)

• two Form C output relays– door lock – door alarm

Quick Connect Wiring Connectors• allows for quick removal of wiring connectors• easy to change/upgrade wiring or the controller board following system

installation

Electrical Surge/Transient Protection• Transorbs across all inputs and outputs (except relay outputs)• MOVs across all relay outputs

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Network Communications• an RS-232 serial port that automatically configures itself to communicate directly

to a PC or communicate to a PC via modem• an RS-485 network communication port capable of linking up to 128 controllers

on a single network up to 4,000 feet long (or up to 16,000 feet under specific conditions – refer to Appendix 3: PXL-250 Network Wiring Application Note)

Automatic Network Configuration• automatic configuration of earth ground to one point to support network

communications

Access Control Database Capacity• transaction buffers capable of storing up to 3,640 events per controller• a database capacity of up to 10,920 unique cardholders per controller, OR• with optional RAM expansion, up to 65,535 unique cardholders per controller

Support for the Following Reader Technologies• Keri Systems Proximity• Wiegand Compatible (26-bit)

– Bar Code– Biometrics– Keypad– Magnetic Stripe– Other Proximity

NOTE: Wiegand readers must send data according to the Security Industry Association's Wiegand Reader Interface Standard (document number AC-01D-96). Keri Systems, Inc. cannot guarantee the performance or reliability of Wiegand readers that do not meet these guidelines.

The optional LCD-1 Alpha/Numeric Plug-In Display adds the following feature.• access to built-in system diagnostics to aid in troubleshooting (highly

recommended)

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1.2 The SB-293 Satellite BoardThe SB-293 Satellite Board expands the capabilities of the PXL-250 Tiger Controller. Depending upon the application, the SB-293 can add 8 general purpose inputs and 4 general purpose outputs, or it can add Door Switch and Request to Exit inputs and Door Lock and Alarm outputs for a second door (one reader per door) with up to 6 additional general purpose inputs and up to two additional general purpose outputs. Refer to Figure 1-1 on page 14 for a basic diagram of a PXL-250 access control network and its options.

Standard features include:

In Second Door Access Control Configuration• two doors, one reader per door (in conjunction with a PXL-250 controller)• two door control inputs

– door switch status– request to exit (RTE)

• six general purpose inputsone can be user-configured for B-door Auxiliary RTE

• two Form C output relays– door lock – door alarm

• two general purpose, Form C, output relaysuser-configurable for door held open and door forced alarm annunciation

In Additional Input/Output Configuration• eight general purpose inputs• four general purpose, Form C, output relays

Quick Connect Wiring Connectors• allows for quick removal of wiring connectors• makes it easy to change/upgrade wiring following system installation

Electrical Surge/Transient Protection• transorbs across all inputs• MOVs across all relay outputs

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Figure 1-1: A Basic Access Control Network with Options

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Figure 1-1: A Basic Access Control Network with Options

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2.0 Proximity - Principle of OperationProximity, also known as Radio Frequency Identification (RFID), is a method of reading a card or tag without requiring any physical contact between the card/tag and the reading device. With proximity readers there is no physical wear and tear on the card/tag or the reading device. No inserting of a card/tag into a reader slot or swiping of a card/tag through a reader slot is required. The card/tag is simply held up to a reader, within the reader's detection range. Refer to Figure 2-1 for a diagram of this process.

In a proximity reader application, a continuous 125 kHz electromagnetic field is radiated from a coil inside the reader. This field is called the "excitation signal." When a card/tag is presented to a reader, a coil inside the card/tag picks up the excitation signal from the reader generating a small current in the card/tag's coil. This current powers a small integrated circuit (IC) within the card/tag that holds a unique identification number.

The coil in the card/tag transmits this identification number using a 62.5 kHz electromagnetic field, one-half the value of the excitation signal. This 62.5 kHz signal acts as an analog RF carrier for the digital ID number and is called the "receive signal" as the coil in the reader receives this signal.

The reader passes the signal on to the RF receiver in the controller for decoding where it is processed, error checked, and converted to a digital signal. The receiver then sends the digital signal with the ID number to the microprocessor in the controller where an access decision is made.

The read range for a key tag is approximately one-half that of a card. This is due to the size of the coil in the tag compared to the coil in the card. Since the coil in the tag is smaller, it needs to be closer to the excitation signal to activate the IC within the tag. The bigger the coil in the card, tag, or reader, the greater the read range is likely to be.

Figure 2-1: Proximity - Principle of Operation

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3.0 Specifications

3.1 Unit Dimensions• PXL-250 controller PCB – including wiring connectors

– 6.75 inches high by 6.00 inches wide by 2 inches deep– 17.15 cm high by 15.25 cm wide by 5.08 cm deep

• PXL-250 controller PCB with an SB-293 Satellite Board – including wiring connectors

– 7.25 inches high by 6.00 inches wide by 1.75 inches deep– 18.45 cm high by 15.25 cm wide by 4.45 cm deep

• PXL-250 controller PCB with an LCD-1 Alpha/Numeric Display – including wiring connectors


• PXL-250 controller PCB with an SB-293 Satellite Board and an LCD-1 Alpha/Numeric Display

– 8.10 inches high by 6.00 inches wide by 1.75 inches deep, including wiring connectors

– 20.60 cm high by 15.25 cm wide by 4.45 cm deep• Enclosure


3.2 Operating Temperature/Humidity Range• 0°F to 140°F (-18°C to 60°C)• 0% to 90% Relative Humidity, non-condensing

3.3 Controller Power Requirements• 12 VDC @ 1.0 A

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3.4 Current Draw• maximum current draw 270 mA for a controller plus reader current draw (refer to

Table 1 for Reader current draw)• 120 mA max for a PXL-250 Controller• 150 mA max for an SB-293 Satellite Board

NOTE: If an electronic locking device (such as a magnetic lock, a door strike, or similar device) is to be driven by the same power supply as the PXL-250 controller, please ensure the power supply provides enough current to drive every device connected to that supply plus an adequate safety margin. AC power cannot be used.

3.5 Controller Memory Retention• 5 year lithium battery back up to support controller RAM and real-time clock

3.6 Output Relay Contact Rating• 1 Amp @ 24 VDC

3.7 Input Device Configuration• Door Sense normally closed• Request to Exit normally open• Global Unlock normally open, or

Auxiliary RTE A-Door normally open

Table 1: Proximity Reader Current Draw

Reader Type

MS-3000 MS-4000 MS-5000 MS-7000 MS-9000

Current Draw

50 mA 50 mA 100 mA 200 mA 200 mA

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4.0 Cable Requirements

4.1 RS-232 Serial Cable• four conductor, shielded, stranded, AWG 24 wire (such as Belden 9534 or a larger

gauge)• 50 feet maximum length (per RS-232 industry specification)

4.2 RS-485 Network Cable• two conductor, shielded, twisted pair, stranded, AWG 24 wire (such as Belden

9501 or a larger gauge)• 16,000 feet total network length• refer to the Network Wiring Application Note (P/N 01824-002) for specific

network wiring information

4.3 Input Power• two conductor, stranded, AWG 18 wire (such as Belden 8461 or a larger gauge)• 200 feet maximum cable length for systems using an SB-293 with two readers

NOTE: On long power cable runs, the resistance in the cable itself causes a drop in voltage at the end of the run. Be sure that your power supply does provide 12 VDC at the end of the cable run.

4.4 Earth Ground• single conductor, AWG 18 wire (or a larger gauge)1

1. Ground wire is green with or without yellow tracer.

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4.5 Keri Systems Proximity Readers• six conductor, shielded, stranded, AWG 24 wire (such as Belden 9536 or a larger

gauge)1

• maximum cable lengths by wire gauge are defined in Table 2

4.6 Wiegand Compatible Devices• five, six, or seven conductor, shielded, stranded, wire (depending upon the type of

Wiegand device)

NOTE: A minimum gauge of AWG 24 is required for data transfer with a 500-foot maximum run length per Wiegand specification. However, the wire gauge to use should be determined by the current draw requirements of the Wiegand device and the actual length of the cable run. A +5 VDC Wiegand device must have +5 VDC at the device (long cable runs have a voltage drop across the length of the run due to the resistance in the cable). To ensure +5 VDC is available at the device a larger gauge of wire (having less resistance) or a separate power supply at the Wiegand device may be required.

4.7 Input and Output Connections• two conductor, stranded, AWG 22 or a larger gauge

NOTE: The Lock Output relay may require a heavier gauge of wire depending upon the current demands of the lock and the length of the lock wiring run.

NOTE: If plenum cable is required, please reference the Belden plenum equivalent to the cables listed above.

1. The MS-4000 requires only four conductors as it does not have a beeper or LED.

Table 2: Maximum Cable Lengths by Wire Gauge for Keri Systems Proximity Readers

Maximum Cable Length by Wire Gauge

Reader Type 100 ft 250 ft 500 ft

MS-3000 AWG 24 AWG 24 AWG 24

MS-4000 AWG 24 AWG 24 AWG 24

MS-5000 AWG 24 AWG 24 AWG 24

MS-7000 AWG 24 AWG 24 AWG 20

MS-9000 AWG 24 AWG 22 AWG 18

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5.0 PC/Doors Access Control Software RequirementsFor proper operation of the access control system, the host computer running the Doors access control software must meet the following requirements.

• PC compatible computer using a Pentium-90 or faster microprocessor• minimum of 16 MB of system RAM1

• SVGA color monitor and SVGA graphics card. A minimum resolution of 800 x 600 is required for use with small fonts, or 1024 x 768 for use with large fonts.

• 3.5 inch floppy disk drive, CD-ROM, keyboard, and mouse or other pointing device

• 50 MB of available hard disk space• either a COM port with a 16550 UART to support an external modem or a direct

RS-232 serial connection; an internal 9600 baud or faster modem; or an Ethernet card2

• one of the following operating systems:– Windows 95 – Windows 98 – Windows 2000– Windows ME – Windows XP – Windows NT v4.0

Doors is incompatible with Windows 3.11, Windows NT v3.51, and MS-DOS. Doors does not work with these operating systems.

5.1 Photo Badge Management RequirementsFor proper operation of Doors in a badging application, the following requirements must be met. These requirements supersede the standard PC/Doors requirements listed above.

• The SVGA graphics card must be capable of displaying 65K colors to ensure photo images are properly displayed.

• Between 100 MB and 1 GB of hard disk space must be available, depending upon the number of card holders for which you will be providing photo badges.

• Either Windows 95, Windows 98, Windows 2000, Windows ME, or Windows NT 4.0 operating systems.

Proper USB support is not provided in Windows 95. In Windows 95, the digital image capture device cannot be a USB device.

1. The larger the number of cards being enrolled, the larger the system RAM should be to efficiently handle the card database.

2. Communication between the access control network and the Doors software is done through either the host computer’s COM port (COM 1, 2, 3, or 4), or a LAN/WAN Ethernet. Doors cannot operate if the host computer’s COM port is not operating correctly, or the LAN/WAN is not set up properly. Keri Systems cannot be held responsible for host computer COM port, hardware, or network problems.

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The TWAIN drivers that control communication between many digital cameras and the badging software are not compatible with the Windows NT 4.0 operating system. Alternate methods of digital image transfer may be necessary.

6.0 System Cautions

6.1 Earth GroundYou should make a quality earth ground connection to the PXL-250 controller to ensure the best possible operating conditions for the controller. Without a quality earth ground connection, the access control system may appear to operate correctly, but will be extremely susceptible to transients and electromagnetic interference on data and power lines. An earth ground brings all electrically neutral lines to the earth's surface potential (essentially to a zero potential) providing three primary benefits to the PXL-250 controller.

1. An earth ground protects the PXL-250 controller from electrical transients such as power surges and lightning strikes (also providing a degree of safety for an operator).

2. An earth ground provides a path to ground for electrical interference minimizing data and communication problems for the reader data and network communication lines.

3. Through a feature on the PXL-250 controller the shield for the entire RS-485 network is automatically grounded at one point on the master controller minimizing communication problems.

Here are some possible sources for an earth ground.

• copper shrouded ground rod• cold water pipe (must be a metal pipe - not PVC)• steel building framing member (if the building's frame is embedded in the earth)• electrical system ground (at the breaker/fuse box)• telephone system ground

6.2 Electromagnetic InterferenceElectromagnetic interference is electromagnetic energy radiated by an electrical device that may affect the operation of other electrical devices. The PXL-250 controller can be sensitive to electromagnetic interference (EMI), affecting the controller's performance. To ensure the best operating conditions for the controller, please review and consider the following suggestions.

6.2.1 Power SuppliesSwitching power supplies are known sources of EMI and cannot be used as the VDC source for the PXL-250 controller or for any proximity reader.

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Only commercially built, linear, regulated power supplies should be used with any access control system using proximity readers.

When installing a power supply for the PXL-250 controller, mount the power supply three feet or greater from the controller to provide a degree of isolation from EMI that may be generated by the power supply.

6.2.2 EMI SourcesKeri Systems also recommends installing the controller in low EMI areas whenever possible. Always be cognizant of sources of EMI that may affect the operation of the PXL-250 controller and install your controller away from these sources. Common sources of EMI include computer monitors, electric motors, power transformers, and air conditioning and heating units.

6.2.3 Separating Power Cables from Network and Reader CablesTo prevent EMI that may be conducted between power cables and network/reader cables, Keri Systems recommends running the power cables apart from the network and reader cables. This will minimize the possible effect a voltage surge on the power cable may have on the network and reader cables.

6.3 Transient SuppressionVoltage transients are electrical surges or spikes conducted through power, input, or output lines. Transients are generated when electric devices (such as electric locking devices) are turned on or off. Transients may affect the operation of both the PXL-250 Controller and SB-293 Satellite board. Because of this, transient suppression is required for both devices. A transient suppressor is a device added to an electrical circuit that minimizes the affects of transients. Depending upon the application, a transorb or an isolation relay provides the suppression necessary to ensure proper operation of the access control system.

Under normal circumstances, a 1.5KE39C transorb must be installed across the positive and negative power lines at the electric locking device to provide the best operating conditions for the PXL-250 or SB-293. This transorb will minimize any transients that may be generated by an electric locking device from affecting the operation of the PXL-250 or SB-293. Two bipolar transorbs are provided with each PXL-250 and each SB-293 for this purpose.

In applications such as parking gates or turnstiles (or any application using a large electric motor), a transorb alone may not provide enough suppression; an isolation relay may be required. Keri Systems offers an Isolation Relay Package (Keri Systems P/N IRP-1) which can provide suppression for the large transients generated by these types of devices.

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6.4 Communication with the Host Computer

6.4.1 PC COM PortA COM port is a hardware device that allows a computer to communicate with external devices. To ensure proper communication between the access control system and the PC, the PC's COM port must be configured properly and be operating correctly. Most communication problems between PC and access control system are directly attributable to an improperly configured or inoperable PC COM port. Please ensure the PC COM port is working correctly before loading the Doors access control software on your PC system.

Keri Systems cannot be held responsible for problems using the Doors access control software that are due to an inoperable COM port. To assist in verifying basic COM port operation, Keri Systems has provided a basic COM port test with the Doors software package. COM port test instructions can be found with the documentation supplied with the Doors software.

NOTE: Doors software only supports COM ports 1, 2, 3, or 4.

6.4.2 Ethernet TCP/IPEthernet connectivity is achieved by connecting the Entraguard master controller to a LAN-100 Ethernet Module allowing the Entraguard network to be attached to a Local Area Network (LAN) instead of directly to a computer. This gives any workstation on a LAN (with the proper authority) the ability to communicate with the Entraguard network.

Ethernet modules must be assigned an unique IP address which must be entered in Doors for proper communication. One Ethernet module is necessary for each master controller.

Utilizing Ethernet technology requires expertise. A LAN/WAN administrator or other network professional is necessary. For further information please refer to the LAN/WAN Ethernet Communication Application Note (P/N 01881-001). Keri Systems does not provide technical support on network issues, please see your network administrator for assistance.

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7.0 PXL-250/SB-293 System Installation

7.1 Advance PlanningA successful, easy to maintain installation requires advance planning - making sure the site has everything necessary for a successful installation and making sure that all materials are placed in easily maintainable locations that take advantage of the features the PXL-250 access control network has to offer.

7.2 Utility RequirementsA successful installation needs:

• grounded power outlets for the PC system and controller power supplies• dedicated analog telephone lines if communication between access control

network and PC is to be done via modem - one for the host PC system and one for each master PXL-250 controller

NOTE: In most cases, modems are not compatible with private branch exchange (PBX) telephone switching systems causing disconnection problems with the modem. For this reason, dedicated analog telephone lines are required for successful modem communication.

7.3 Where Should Controllers be Installed?Controllers should be accessible for ease of installation and ease of maintenance. Service closets may be a viable installation location. Controllers can be mounted centrally, or distributed across an access control network.

7.3.1 Central MountingCentral Mounting places all controllers in one location, running lengths of cables out to each door to support the needed readers, inputs, and outputs. The benefit to central mounting is that all controllers are together in one location making it easier to maintain and secure the controllers. The drawback to central mounting is that it tends to use more cable, routing cables from the controller to each door for the reader and the necessary inputs and outputs. Accordingly, the cable costs for central mounting is higher. Also, reader cable lengths are limited to 500 feet making central mounting in a large installation difficult, if not impossible.

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7.3.2 Distributed MountingDistributed Mounting places a controller near each door. The RS-485 network communication cable is then routed to every controller on the access control network. The benefit of distributed mounting is that less cable is needed for the reader and the necessary inputs and outputs as they are all near the controller. Only the network cable needs to be routed throughout the installation. The drawback to distributed mounting is that a location needs to be found near each door for every controller. More effort may be needed to maintain and secure the controllers.

All controllers need to be mounted in environmentally suitable locations. They require protection from weather and from temperature/humidity extremes. If a PXL-250 controller is to be used outdoors, it must be installed in a watertight, weatherproof enclosure. All controllers need at least three feet of separation between the controller and the controller's power supply. This will prevent EMI radiated by the power supply from affecting the performance of the controller.

7.4 Installing the EnclosureThe PXL-250 controller enclosure may be installed on any kind of wall material: wood, sheet-rock, concrete, or metal. Mount the 12 VDC power supply for the PXL-250 controller three feet or greater from the controller to provide a degree of isolation from EMI that may be generated by the power supply. Always be aware of sources of EMI that may affect the operation of the PXL-250 controller and make your installations away from these sources whenever possible.

The enclosure's mounting holes are found at each corner of the unit (top left, top right, bottom left, and bottom right). To mark a surface for drilling enclosure mounting holes, simply place and hold the enclosure in the desired location and with a pencil or scribe place a mark on the mounting surface at each mounting hole. Note the location of the enclosure's knockouts (circular, removable plates on the enclosure's base plate) and remove the knockout that allows you to route your cables into the enclosure in the easiest, most direct path.

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7.5 The Enrollment ReaderThe enrollment reader is the "A" reader on the master controller on the access control network. The Doors access control software expects all card enrollment by presentation information to come from the "A" reader on the master controller. For ease of card enrollment, the enrollment reader and master controller should be physically near the host computer running the Doors software.

The enrollment reader can be a Keri proximity reader or a Wiegand compatible device reader. An enrollment reader is not necessary if all cards are block enrolled (block enrollment uses the identification number printed on the body of the cards for enrollment information so cards are not presented to an enrollment reader – block enrollment assumes that the identification number on the card bodies are in consecutive order).

The enrollment reader can be used at a door for access control as well as enrollment. However, during the enrollment process the door or doors assigned to the master controller become unavailable for access control; these doors remain in the state they are in when the enrollment process begins (you may consider manually unlocking the door before beginning enrollment and then relocking it when enrollment is complete). Further, if the master controller has both "A" and "B" readers, it is possible for an existing cardholder to present an already enrolled card at the B reader while an operator is enrolling a card at the A reader. In this case, the card read by the B reader will generate a "Card Already Enrolled" error message and the cardholder will not be granted access through the door because the controller is in enrollment mode. For these reasons, an installer may consider reserving the master controller and one reader for card enrollment only.

7.6 Where Should Cables be Routed?The PXL-250 controller offers flexibility in cabling options between optimizing cable costs versus controller access/convenience. However there are several things to keep in mind when routing cables for an installation:

DO• Route cables in accessible areas whenever possible. This will make cable/system

maintenance easier.• Add transient suppression across electric devices attached to the PXL-250 and SB-

293 output relays.• Use an isolation relay (Keri Systems P/N IRP-1) if connecting to a parking gate,

turnstile, or any application using a large electric motor.

DO NOT• Do not route cables near EMI sources. Cables can act as antennas, receiving EMI

that can affect controller performance.• Do not stretch cables or route them over sharp edges.

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7.7 RS-485 NetworkingThe PXL-250 uses a half-duplex, RS-485 communication bus. This is a very robust system and has been tested to exceed standard RS-485 industry specifications. Using approved cable and good installation practices, the network will operate satisfactorialy with up to 16,000 feet of cable for systems of up to 128 PXL-250 controllers, each with an SB-293. The following rules apply when wiring the controller network communication bus.

1. The total network cable length cannot be greater than 16,000 feet.2. Controllers can be connected in a single-run multi-drop, a star, mulitple stars, a

continuous daisy chain, etc.3. The master controller can be located at any point in the network.4. Care must be take to ensure the Tx- and Tx+ lines are not cross-wired.5. Shield integrity must be maintained throughout the network installation.6. If there are more wires than will reliably fit into the PXL-250 terminal block, Keri

recommends using an external terminal strip to combine the cables and then connect a single wire to the terminal block.

7. The recommended cable is Belden 9501 or its equivalent. This is a single-pair, twisted, shielded, AWG 24 cable.

Please refer to the PXL-250 Network Wiring Application Note (P/N 01824-002) in the Appendix for detailed information on extended network configurations.

NOTE: Keri Systems defines a "Star" pattern as multiple sets of daisy chained controllers all connected to the master controller at the center of the star.

NOTE: Communication buses such as RS-485 often appear to work even if installed incorrectly, but can have intermittent problems making problem diagnosis difficult. Failure to properly install an RS-485 network can result in network communication errors and can cause the access control system to lock up. Although Keri Systems has lab tested the functionality and data integrity of the extended network configurations, no guarantees can be given for extended network configurations.

7.8 PXL-250W Jumper SettingsNOTE: Early revisions of the surface mount PXL-250W mislabeled the JP4 jumper as JP5. All instructions for the JP4 jumper apply to the jumper labeled as JP5 (see Figure 9-1 on page 39 for the location of the jumper).

On the PXL-250W controller (for use with Wiegand readers), there is only one jumper that may require setting. JP4 sets the power supply voltage with which the controller powers the reader (see Figure 7-1 on page 29 and Figure 9-1 on page 39).

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All Keri Systems proximity readers use 5 to 12 VDC power (except for the MS-9000 which uses 12 to 24 VDC power) while most Wiegand compatible readers use just 5 VDC power. For Wiegand configured PXL-250W controllers, there is a reader power warning LED on the controller board to indicate if the controller is applying 12 VDC to the Wiegand compatible reader (see Figure 7-1 on page 29). If your Wiegand compatible reader does operate on 5 VDC no changes need to be made, the default position for the jumper is to set power to 5 VDC. If your Wiegand compatible reader requires 12 VDC, perform the following steps to set the reader supply voltage to 12 VDC.

When power is applied to the controller, the RDRPWR (reader power) warning LED will turn on (see Figure 7-1) indicating 12 VDC is being supplied to the Wiegand compatible reader.

JP4 - Wiegand Reader Power Supply Voltage• Jumper across JP4 pins 1 and 2 to enable 12 VDC power for readers.• Jumper across JP4 pins 2 and 3 enables 5 VDC power for readers. Most Wiegand

output devices require 5 VDC. This is the factory default setting for PXL-250W controllers (to help ensure that 12 VDC is not accidentally applied to 5 VDC Wiegand readers). If your Wiegand compatible reader requires 12 volts, move the jumper from pins 2 and 3 to pins 1 and 2.

Figure 7-1: Setting the JP4 Jumper on PXL-250W Controllers

NOTE: Applying 5 VDC to a 12 VDC reader will not damage the 12 VDC reader. However, applying 12 VDC to a 5 VDC reader very likely will damage the 5 VDC reader. Be sure you are applying the correct supply voltage to the reader. Keri Systems cannot be responsible for 5 VDC readers damaged by excessive voltage.

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7.9 SB-293 Jumper SettingsOn the SB-293 satellite board, there is only one jumper that may require setting. JP12 configures the satellite board for either second door control or for general purpose inputs and outputs (see Figure 7-2, and Figure 10-1 on page 71).

• Placing a Jumper across JP12 pins 1 and 2 configures the satellite board for general-purpose inputs and outputs.

• Removing the Jumper across JP12 configures the satellite board for second door control with additional inputs and outputs. When the satellite board is configured for second door control, the primary door must be connected to the "A" reader (TB-5 on the PXL-250 controller board) and the secondary door must be connected to the "B" reader (TB-6 on the controller board).

Figure 7-2: Setting JP12

7.10 Installing the SB-293 Satellite Board onto the PXL-250 ControllerPerform the following steps to install an SB-293 satellite board onto a PXL-250 controller.

1. Turn the controller's power OFF.2. Line up the upper left-hand corners of the satellite and controller PCBs.3. Line up the stand-offs in the top two corners of the satellite PCB with

corresponding mounting holes in the controller PCB (see Figure 7-3 on page 31).4. Align the Satellite Board to Motherboard connector pins.5. Gently press the two boards together with each stand-off into its mounting hole

and with the connector pins meshing together.6. Turn the controller’s power ON.7. If the J2 and P2 connectors have been meshed together properly, the LED on the

SB-293 (see Figure 10-1 on page 71) will turn green.

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Figure 7-3: Satellite Board/Controller Installation

7.11 Wiring Connections to the BoardsThere are several things to keep in mind when making the wiring connections to the PXL-250 and SB-293 boards.

When routing cables into and inside an enclosure:

DO• Route cables in accessible areas whenever possible for ease of maintenance.• Note the location of the enclosure's knockouts (circular, removable plates on the

enclosure's base plate) and remove the knockout that allows you to route your cables into the enclosure in the easiest, most direct path.

• For a single door application, install the door's reader to the TB-5, "A" reader connection on the controller.

• For a two door application, install the primary door's reader to the TB-5, "A" reader connection on the controller and install the secondary door's reader to the TB-6, "B" reader connection on the controller.

DO NOT• Do not stretch or over-tension cables.• Do not route cables over sharp objects.• Do not route cables near EMI sources. Cables can act as antennas, receiving EMI

that can affect controller performance.• Do not let the cables and the individual wires get tangled. Keep them neatly tied

back and clear from the controller PCB.

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8.0 Understanding Inputs and OutputsThe following section provides descriptions of all Inputs and Outputs on the PXL-250 Controller and the SB-293 Satellite board. Wiring diagrams for all inputs and outputs are included in the next section, Wiring Connections beginning on page 39.

8.1 InputsAn input detects a state change generated by a device outside of the controller. The controller then responds to that state change per commands programmed by the Doors program. The input devices that generate the state change may be normally closed or normally open.

A normally closed input device continually keeps a circuit closed or complete. A state change is generated when the normally closed input device is opened, breaking the circuit. In an access control system, a door switch is a typical example of a normally closed device. While the door remains closed, the switch remains closed. When someone opens the door, the door switch is opened, breaking the circuit and generating a state change. The controller then responds to this state change per programmed instructions and generates an output such as sounding an alarm if the door is a secure door.

A normally open input device continually leaves a circuit open or incomplete. A state change is generated when the normally open input device is closed, completing the circuit. In an access control system, a request-to-exit (RTE) button is a typical example of a normally open device. In an access control installation, an RTE button is located on the secured side of the door. While there is no one at the door pressing the button, the switch remains open. When someone desires to exit through a secure door, they press the RTE button, closing the circuit and generating a state change. The controller then responds to this state change per programmed instructions and generates an output such as unlocking the door to allow exit.

8.1.1 Door Status Switch InputThe door status switch input accepts a signal from a normally closed input switch that indicates the status of the door: open or closed. While the door remains closed, the switch remains closed. When someone opens the door, the door switch is opened, breaking the circuit and generating a state change. The controller responds to this state change per programmed instructions and generates an alarm output if the door is forced open or is held open too long. Refer to Figure 9-8 on page 49 (for the PXL-250) and Figure 10-10 on page 82 (for the SB-293) for possible Door Status Switch wiring diagrams.

NOTE: A door switch must be installed on any door to which anti-passback is being applied. This allows the controller to properly track the anti-passback feature in the Doors program.

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NOTE: If a Door Status switch is not being used, a jumper must be installed across pins 1 and 2 of TB-4 (for the PXL-250 Controller) and pins 1 and 2 of TB-8 (for the SB-293 Satellite board). This prevents a continuous Door Open signal from being received by the controller and it ensures proper operation and annunciation of Door Forced and Door Held Open alarms.

NOTE: If the Door Status input is being used, to ensure proper operation and annunciation of Door Forced and Door Held Open alarms the door must also have a Request to Exit input enabled.

8.1.2 Request to Exit InputThe request to exit (RTE) input accepts signals from a normally open input device that indicates that a request has been made for someone to exit a secured door. Motion detectors, pressure-sensitive floor mats, or push buttons may make RTE requests. While there is no one there to activate an RTE request, the input remains open. When someone desires to exit through a secure door, this person activates the RTE device, closing the circuit and generating a state change. The controller then responds to this state change per programmed instructions and generates an output unlocking the door to allow exit. Refer to Figure 9-7 on page 47 (for the PXL-250) and Figure 10-11 on page 83 (for the SB-293) for possible RTE wiring diagrams.

8.1.3 Auxiliary Request to Exit InputThrough an option in the Doors program, the general purpose input on the PXL-250 and general purpose input 3 on the SB-293 can be configured to provide an auxiliary RTE input for an A-Door or a B-Door, respectively. This gives a person in a remote location the ability to unlock a secure door (for example, an auxiliary RTE input at a Receptionist’s desk that allows the Receptionist to unlock a secure door).

The auxiliary RTE Input works exactly like the standard RTE Input explained in the previous section. Refer to Figure 9-6 on page 46 and Figure 10-12 on page 84 (for the SB-293) for possible auxiliary RTE wiring diagrams.

NOTE: The PXL-250 has only one general purpose input. This input can be configured for either Auxiliary RTE or for Global Unlock – but not both. Determine which input application best suits the site requirements before installing input hardware and wiring.

8.1.4 Global Unlock InputThrough an option in the Doors program, the general purpose input on the PXL-250 can be configured to perform a Global Unlock. A Global Unlock allows an operator to unlock all doors, immediately (this input is only valid on the master PXL-250 Controller).

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While there is no one there to activate a Global Unlock request, the input remains open. When someone desires to globally unlock all doors, this person activates the Global Unlock device (typically a normally open switch), closing the circuit and generating a state change. The master controller then responds to this state change per programmed instructions and generates an output unlocking all doors and allowing exit. Refer to Figure 9-5 on page 45 for a possible Global Unlock wiring diagram.

NOTE: The Global Unlock input is not certified for use with fire systems. Please check with local building codes regarding fire safety requirements.

8.1.5 General Purpose Input – SB-293The general-purpose input accepts signals from either a normally closed or a normally open input device that indicates when a change in state has occurred.

For a normally closed input device, while the input device is in its normal state the general-purpose input circuit remains closed. When the input device is activated, the general-purpose input circuit is opened generating a state change. The controller may respond to this state change per programmed instructions. The general-purpose input is configured through the Doors access control software.

A normally closed push-button may be used to provide a normally closed general-purpose input. While the push-button is in its normal state, the normally closed circuit is complete and no input signal is generated at the controller. When a user presses the push button it opens the general-purpose input circuit and generates a state change. The controller responds to this state change per programmed instructions and may perform some action. Refer to Figure 10-9 on page 81 and Figure 10-15 on page 88 for possible general-purpose, normally close Input wiring diagrams.

For a normally open input device, while the input device is in its normal state, the general-purpose input circuit remains open. When the input device is activated, the general-purpose input circuit is closed generating a state change. The controller may respond to this state change per programmed instructions. The general-purpose input is configured through the Doors access control software.

A normally open motion detector may be used to provide a normally open general-purpose input. If the motion detector does not detect motion, its alarm circuit remains open and no input signal is generated at the controller. When the motion detector does detect someone entering its controlled area, its alarm circuit closes, completing the general-purpose input circuit and generating a state change. The controller responds to this state change per programmed instructions and may perform some action. Refer to Figure 10-13 on page 86 and Figure 10-16 on page 90 for possible general-purpose, normally open Input wiring diagrams.

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8.2 Output RelaysIn many respects, a Form C output relay performs the opposite task of an input. An input detects a state change generated by a device outside of the PXL-250 or SB-293. An output relay, however, receives a signal from the controller that energizes the output relay, switching its state. This state change typically prompts an action outside of the controller. In most cases, inputs create state change signals that drive output relays.

An example of this process is when a secure door is forced open. As the door is opened, the door status switch opens. The door status switch input detects the switch's state change. Programmed instructions within the controller send a signal instructing the alarm relay to energize. The alarm relay switches its state to activate an audio alarm notifying everyone in the immediate area that the door has been forced open. A variety of devices may be activated by an output relay such as an electric door strike, a magnetic lock, an alarm, a light, or a video camera.

A Form C relay has both normally closed and normally open circuits. When the relay is not energized, the normally closed circuit is closed (allowing current flow) and the normally open circuit is open. When the relay is energized the circuits switch roles; the normally open circuit is closed (allowing current flow) and the normally closed circuit is open. This dual nature of Form C relays (having both normally closed and normally open circuits) allows for two types of applications outside the controller. A device may be attached to the normally closed circuit so that it is always on until the relay energizes to open the circuit and turn it off. Or, a device may be attached to the normally open circuit so that it is always off until the relay energizes to turn it on.

8.2.1 Lock RelayUnlocking a door is controlled by the Form C Lock Relay. When installing a door lock there are two things to consider: safety versus security, or should the door be "fail-safe" or "fail-secure."

8.2.1.1 Fail-Safe LockFail-safe means that if the power should fail at a door (perhaps due to a power outage or equipment failure), the door will automatically unlock allowing entrance and exit. Power is required to keep the door locked. A fail-safe door ensures people will be able to enter and exit a secured area through that door in the case of an emergency.

A typical fail-safe application may use a magnetic lock. In this application, the controller energizes the lock relay, causing the lock relay to change its state. In its new state the normally closed circuit is opened breaking the power to the magnetic lock and allowing the door to be opened. Refer to Figure 9-10 on page 52 (for the PXL-250) and Figure 10-3 on page 73 (for the SB-293) for possible fail safe Lock Relay wiring diagram.

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8.2.1.2 Fail-Secure LockFail-secure means that if the power should fail at a door (perhaps due to a power outage or equipment failure), the door will automatically lock and not allow entrance but will continue to allow egress. Power is required to unlock the door. A fail-secure door ensures a secured area remains secure regardless of the situation.

A typical fail-secure application may use a door strike. In this application, the controller energizes the lock relay, causing the lock relay to change its state. In its new state the normally open circuit is closed activating the release mechanism for the door strike on the door to be opened. Refer to Figure 9-11 on page 53 (for the PXL-250) and Figure 10-4 on page 74 (for the SB-293) for possible fail secure Lock Relay wiring diagram.

8.2.2 Alarm Out RelayActivating an audio (or a silent) alarm is controlled by the Form C alarm out relay. An alarm condition causes the controller to energize the alarm out relay, causing the alarm out relay to change its state. In its new state the normally open circuit is closed activating the alarm. Refer to Figure 9-9 on page 51 (for the PXL-250) and Figure 10-5 on page 76 (for the SB-293) for possible Alarm Out Relay wiring diagram.

8.2.3 Door Held Open RelayThe Doors program allows the Alarm Out Relay to be configured for annunciating both Door Forced and Door Held Open alarms or for annunciating only Door Forced alarms. If the Alarm Out Relay is configured to only annunciate Door Forced alarms, the Door Held Open condition is then configured for either annunciation on a separate output relay or for no annunciation at all. If the Door Held Open Relay is configured to be annunciated on a separate output relay (distinguishing it from a door forced alarm) programming in the Doors program routes door held open alarms to designated general-purpose output relays on the SB-293: TB-10, Pins 4, 5, and 6 for the A-Door and TB-10, Pins 1, 2, and 3 for the B-Door.

A door held open condition causes the controller to energize the Door Held Open relay, causing the relay to change its state. In its new state the normally open circuit is closed activating the alarm. Refer to Figure 10-6 on page 78 and Figure 10-7 on page 79 for a possible Door Held Open alarm relay wiring diagram.

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8.2.4 General Purpose Output RelayA general-purpose output relay receives a signal from the controller that energizes the output relay, switching its state. This state change typically initiates or ends an action outside of the controller.

8.2.4.1 Normally Closed RelayA device may be attached to the relay's normally closed circuit so that it is always on until a signal from the controller energizes the relay, opening the circuit and turning the device off. The general-purpose output relay is configured through the Doors program.

A normally closed general-purpose output relay may be used to disable a remote sensor. The controller opens the normally closed relay circuit based on programmed instructions within the controller or from a direct command by an operator. The opened circuit cuts power to the remote sensor, temporarily disabling it. Refer to Figure 10-9 on page 81 and Figure 10-15 on page 88 for possible general-purpose normally closed output wiring diagrams.

8.2.4.2 Normally Open RelayA device may be attached to the relay's normally open circuit so that it is always off until a signal from the controller energizes the relay, closing the circuit and turning the device on. The general-purpose output relay is configured through the Doors access control software.

A normally open general-purpose output relay may be used to activate a video camera. The controller closes the normally open relay circuit based on programmed instructions within the controller or from a direct command by an operator. The closed circuit provides power to the video camera, allowing an operator to remotely view the area covered by the camera. Refer to Figure 10-8 on page 81 and Figure 10-14 on page 88 for possible general-purpose normally open output wiring diagrams.

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9.0 Wiring Connections – PXL-250Before performing any wiring or connection operations, ensure that controller power is OFF. Serious damage to sensitive components on the controller may occur if wiring changes are made while controller power is on.

The following instructions assume that J1, the RS-232 serial port, is pointed up. With one exception (the RS-232 serial port), all connections to the PXL-250 controller are made on the left side of the unit (see Figure 9-1). Specific information for making each wiring connection is provided throughout the rest of Section 9.

NOTE: It is the responsibility of the installation organziation to have only technically qualified personnel performing the installation.

Figure 9-1: The PXL-250 Controller

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9.1 Terminal Block ConnectionsFollow these instructions as you make your wiring connections. Select the wire to be installed. Strip away 1/4 inch of insulation from the wire, place the wire into the appropriate slot on the terminal block, and securely tighten the corresponding screw on the top of the terminal block (see Figure 9-2). Make a firm connection, but be careful not to over tighten the screw.

Figure 9-2: Installing Wiring and Removing a Terminal Block

All of the terminal blocks slide off the PXL-250 controller should it become necessary to disconnect any installed cables. Firmly grasp the connector and pull it away from the controller's printed circuit board (see Figure 9-2).

For a first-time installation, Keri recommends you make all wiring connections in the following order, installing the wiring from the terminal block connections at the bottom of the controller to the top. This will allow you to route and install the cables in a sequential order and it ensures that an adequate earth ground is attached to the controller before power is applied.

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9.2 TB-5/TB-6 – Reader ConnectionThe inputs on TB-5 accept wiring from Keri Systems proximity readers or from Wiegand compatible devices. The standard PXL-250 uses Keri Systems proximity readers. To use Wiegand compatible devices the Wiegand compatible version of the PXL-250, the PXL-250W, must have been purchased.

A Wiegand compatible controller will have circuitry installed in the lower left corner of the PCB, allowing the voltage supplied by the controller to the Wiegand reader to be changed between 5 VDC and 12 VDC.

Two readers may be installed for one door to allow for access control in both directions. The "A" reader, allowing entrance, is connected to TB-5 on the PXL-250 motherboard. The "B" reader, allowing exit, is connected to TB-6 on the motherboard. If your application uses just one reader, connect it to TB-5 on the PXL-250 motherboard.

NOTE: If you are connecting readers for an elevator control application, please refer to the Elevator Control Application Note (P/N 01878-001) in the appendix of this document.

9.2.1 Proximity Reader ConnectionRefer to Table 3 and Figure 9-3 and make the following connections to attach Keri Systems proximity readers.

Table 3: Proximity Reader Connections

TB-5/TB-6 Description Wire Color

Pin 1 Antenna BLUE

Pin 2 Beeper GREEN

Pin 3 Reader Power RED

Pin 4 Reader Ground BLACK

Pin 5 Green LED BROWN

Pin 6 Red LED WHITE

Pin 7 NO CONNECTION n/a

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Figure 9-3: Keri Systems Proximity Reader Connections

9.2.2 Wiegand Compatible Reader ConnectionThe PXL-250W controller can be configured to accept input from single-line LED, dual-line LED, or Essex keypad Wiegand input devices (through the Doors software).

• For single-line LED devices, refer to Table 4 page 43 and Figure 9-4, and make the following connections to attach Wiegand compatible readers.

• For dual-line LED devices, refer to Table 5 page 43 and Figure 9-4, and make the following connections to attach Wiegand compatible readers.

• For Essex keypad devices, refer to Table 6 page 44 and Figure 9-4, and make the following connections to connect Essex keypads.

Figure 9-4: Wiegand Compatible Reader Connections

NOTE: The wire colors called out in Figure 9-4 and in Tables 4, 5, and 6 are industry standard wire colors. However, some manufacturers may not follow these industry standard designations. Before installation, please refer to the Wiegand device’s manual to see if the device’s wire colors follow the industry standard. If not, then match the wire’s purpose to the callouts in Tables 4, 5, and 6 before installation.

NOTE: The Wiegand reader must send data according to the Security Industry Association's Wiegand Reader Interface Standard (document number AC-01D-96). Keri Systems, Inc. cannot guarantee the performance or reliability of Wiegand readers that do not meet these guidelines.

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NOTE: All Keri Systems proximity readers can use between 5 and 12 VDC power while most Wiegand compatible readers use 5 VDC power. Check your reader's requirements and verify jumper JP4 is set correctly per the Jumper Settings instructions on page 28. Early revisions of the surface mount PXL-250W mislabeled the JP4 jumper as JP5. All instructions for the JP4 jumper apply to the jumper labeled as JP5 (see Figure 9-1 on page 39 for the location of the jumper).

a. Refer to the Wiegand compatible reader’s documentation for the color of this wire.

Table 4: Single-Line LED Wiegand Compatible Reader Connections


Pin 1 Data 0 GREEN

Pin 2 Beeper refer to readera




Pin 5 n/a n/a

Pin 6 Single LED Line refer to readera

Pin 7 Data 1 WHITE

Table 5: Dual-Line LED Wiegand Compatible Reader Connections


Pin 1 Data 0 GREEN

Pin 2 Beeper refer to readera



Pin 5 Green LED refer to readera

Pin 6 Red LED refer to readera

Pin 7 Data 1 WHITE

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Table 6: Essex Keypad Wiegand Compatible Reader Connections


Pin 1 Data 0 GREEN

Pin 2 n/a n/a



Pin 5 n/a n/a

Pin 6 Single LED Line refer to readera

Pin 7 Data 1 WHITE


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9.3 TB-4 – Global Unlock or Auxiliary RTE Input ConnectionThe global unlock or auxiliary RTE input is used in conjunction with the programmable input/output feature of the Doors access control software. Refer to the Inputs section starting on page 32 for more information on general-purpose inputs and input devices. There are two possible uses for the general-purpose input.

• Global Unlock input (ONLY on the master controller – configured in the Doors program)

• Auxiliary RTE input for the A-door (configured in the Doors program)

NOTE: The PXL-250 has only one general purpose input. This input can be configured for either Auxiliary RTE or for Global Unlock – but not both. Determine which input application best suits the site requirements before installing input hardware and wiring.

9.3.1 Global UnlockThe normal state of the global unlock input is an open circuit that will be closed when an input is generated. No voltage is applied at this input; the circuit will change state (open to closed) to indicate an input event. Refer to the Global Unlock section starting on page 33 for more information on global unlock. Refer to Table 7 and Figure 9-5 and make the following connections to attach a global unlock input.

Figure 9-5: Global Unlock Input Connections

Table 7: Global Unlock Input Connections

TB-4 Description

Pin 5 Ground/Common

Pin 6 Global Unlock Signal

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9.3.2 Auxiliary RTE A-DoorThe normal state of the auxiliary RTE A-door input is an open circuit that will be closed when an input is generated. No voltage is applied at this input; the circuit will change state (open to closed) to indicate an input event. Refer to the Auxiliary Request to Exit section starting on page 33 for more information on auxiliary RTE. Refer to Table 8 and Figure 9-6 and make the following connections to attach an auxiliary RTE A-door input.

Figure 9-6: Auxiliary RTE A-Door Input Connections

Table 8: Auxiliary RTE A-Door Input Connections

TB-4 Description

Pin 5 Ground/Common

Pin 6 Auxiliary RTE A-Door Signal

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9.4 TB-4 – Request to Exit ConnectionRequest to Exit (RTE - also known as REX) devices typically unlocks the door to allow exit from the building. The PXL-250 controller may accept input from devices such as switches, motion sensors, or floor mats. The normal state of this input is an open circuit that will be closed when an input is generated. No voltage is applied at this input; the circuit is completed to indicate an RTE event. Refer to the Request to Exit Input starting on page 33 for more information on RTE inputs and input devices.

Refer to Table 9 and Figure 9-7 and make the following connections to attach an RTE input.

Figure 9-7: Request to Exit Input Connections

NOTE: If a jumper lead from the door status switch input has already been installed on TB-4, pin 2, loosen the terminal connector and insert the RTE input ground lead beside the jumper lead.

Table 9: Request to Exit Input Connections

TB-4 Description

Pin 2 Ground/Common

Pin 3 RTE Signal

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9.5 TB-4 – Door Status Switch ConnectionThe Door Status switch indicates the state of the door (open or closed). The normal state of this input is a closed circuit that will be opened when an input is generated. No voltage is applied at this input; the circuit is opened and closed corresponding with the door status. Refer to the Door Status Switch Input section starting on page 32 for more information on Door Status Switch inputs and input devices.

Each PXL-250 is shipped with an installation kit including all necessary terminal blocks and transorbs. One of these terminal blocks has a jumper across pins 1 and 2. This terminal block is designated for use on TB-4. If a door switch is not used on the controller, this jumper prevents a continuous door open status alarm from being received by the controller. If a door switch is used, simply remove this jumper and install the door switch leads.

Refer to Table 10 and Figure 9-8 on page 49 and make the following connections to attach a door status input.

NOTE: When using a Door Status input, the door must also have a Request to Exit input for proper operation/annunciation of Door Forced and Door Held Open alarms.

NOTE: A Door Switch must be installed on any door to which anti-passback is being applied for proper tracking of the anti-passback feature in the Doors program.

Table 10: Door Status Switch Input Connections

TB-4 Description

Pin 1 Door Status Switch Signal

Pin 2 Ground/Common

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Figure 9-8: Door Status Switch Input Connections

NOTE: If a ground lead from the Request To Exit input has already been installed on TB-4, pin 2, loosen the terminal connector and insert the door status ground lead beside the RTE input ground lead.

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9.6 TB-3 – Alarm Relay ConnectionThe Alarm Relay is a Form C relay that provides an output to trigger an audible signal (or a silent alarm) whenever the door is put into an alarm state (i.e. the door is forced open). It is also used to trigger an audible signal (or a silent alarm) whenever the door is held open too long (exceeding the Open Time set within the Doors access control program). Depending upon the type of alarm being installed and your application, your alarm may require a normally closed/common connection, a normally open/common connection, or a normally closed/common/normally open connection. Every application requires the common lead connection. Refer to the Alarm Relay output section starting on page 36 for more information on Alarm relay outputs and output devices.

NOTE: Default alarm annunciation sets this relay to annunciate both Door Forced and Door Held Open alarms for the A-door. The enhanced alarm annunciation feature (configured in the Doors program) allows for separate annunciation of Door Forced and Door Held Open alarms. The A-door Door Forced alarm can be enabled at this relay or disabled. The A-door Door Held Open alarm can be left to this relay, disabled, or routed to a relay on an SB-293 Satellite board. Please refer to the Wiring Connections – SB-293 section starting on page 71 for information on how to connect these enhanced alarm annunciation outputs.

For a typical alarm relay installation, refer to Table 11 and Figure 9-9 on page 51 and make the following wiring and transorb connections to attach the alarm relay.

Table 11: Alarm Output Relay Connections

TB-3 Description

Pin 4 Normally-Open

Pin 5 Common

Pin 6 Normally-Closed

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Figure 9-9: Alarm Relay Output Connections

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9.7 TB-3 – Lock Relay ConnectionThe Lock Relay is a Form C relay used to control the door lock. Please refer to the Lock Relay output section starting on page 35 for more information on Lock Relays and output devices.

For a typical fail-safe door lock relay installation, refer to Table 12 and Figure 9-10 and make the following wiring and transorb connections to attach the door lock relay.

Figure 9-10: Fail-Safe Lock Relay Output Connections

For a typical fail-secure door lock relay installation, refer to Table 12 and Figure 9-11 on page 53 and make the following wiring and transorb connections to attach the door lock relay.

Table 12: Lock Relay Output Connections

TB-3 Description

Pin 1 Normally-Open

Pin 2 Common


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Figure 9-11: Fail-Secure Lock Relay Output Connections

Revision 5.5 P/N: 01836-004


9.8 TB-2 – Earth Ground/12 VDC Power ConnectionThe PXL-250 controller requires 12 VDC power at 1 A. You should make a quality earth ground connection to the controller prior to connecting the DC power lines. The earth ground provides protection for the controller and ensures the best possible operating conditions. Refer to the System Cautions – Earth Ground section starting on page 22 for more information regarding earth grounding.

Possible sources for earth ground are a ground rod, a cold water pipe, a steel building frame, the electrical system ground at the breaker/fuse box, or the telephone system ground.

Refer to Table 13 and Figure 9-12 and make the following connection to attach the earth ground and then the 12 VDC power lines.

Figure 9-12: Earth Ground and 12 VDC Power Connections

NOTE: Keri Systems does not recommend sharing a power supply between the PXL-250 controller and an electric locking device. Transients generated as the electric locking device is energized/de-energized can affect controller operation.

NOTE: The power TB-2 is colored red to make it easier to tell it apart from the network connection (TB-1).

Table 13: Earth Ground and 12 VDC Power Connections

TB-2 Description

Pin 1 Positive 12 VDC Power Line

Pin 2 Negative 12 VDC Power Line

Pin 3 Earth Ground

P/N: 01836-004 Revision 5.5


9.9 TB-1 – RS-485 Controller Network ConnectionAll PXL-250 controllers communicate, controller-to-controller, through an RS-485 serial communication network. Up to 128 controllers can be attached to this network. Refer to the RS-485 Networking section on page 28 for information regarding network cable routing.

To provide the best operating conditions for the RS-485 communication network, the PXL-250 controller automatically ties the network shield to earth ground at one point, preventing ground loops.

Refer to Table 14 and Figure 9-13 on page 56 and make the following connections to attach a network communication line.

NOTE: Do NOT connect earth ground to the network cable shield. The PXL-250 controller automatically connects earth ground to the shield at one point on the network. This single connection minimizes the effects of ground loops that can affect controller performance.

NOTE: Keri Systems has identified specific extended network configurations that can be used to wire a controller network communication bus (subject to certain limitations). These configurations include a "star" pattern network communication bus, a spur cable length of up to 5,000 feet, and a total network cable length of up to 16,000 feet. Refer to Addendum 3, PXL-250 Network Wiring Application Note (P/N 01824-002), for detailed information on extended network configurations.

Table 14: RS-485 Network Communication Connections

TB-1 Description

Pin 1 Tx/Rx Negative

Pin 2 Tx/Rx Positive

Pin 3 Network Cable Shield

Revision 5.5 P/N: 01836-004


Figure 9-13: RS-485 Network Communication Connections

P/N: 01836-004 Revision 5.5


9.10 RS-232 Controller/PC ConnectionThe RS-232 serial port (see Figure 9-1 on page 39) provides a communication link between the access control network of PXL-250 controllers and the host computer running the Doors access control software. This link can be made one of two ways.

• Via a serial cable directly connecting the serial port of the master PXL-250 controller and the host computer.

• Via a set of modems making a remote connection between the master PXL-250 controller and the host computer.

The PXL-250 controller will automatically determine the communication method it needs to use on power up (direct-connect or modem) and configures itself accordingly.

In either case, connecting cables are available from Keri Systems (PXL to PC or PXL to Modem), or you may make your own cables. If you make your own cables, please install housings on each connector to protect the wire/connector pin junctions.

NOTE: Keri Systems requires using modems from the same manufacturer at both the host computer and the access control network. This eliminates the possibility of incompatibilities between modems from two different manufacturers from affecting the communication between access control network and Doors software. Keri Systems cannot be held responsible for problems caused by incompatibilities between modems from two different manufacturers.

NOTE: When using 56K modems to communicate with remote access control networks, all modems must use the same communication format - either X2 or Flex. Incompatibilities between the two formats make some modems of one format incapable of reliable communication with modems of the competing format. Modems using the V.90 specification are compatible regardless of whether they are from an X2 or Flex manufacturer.

NOTE: Do not use male/female gender change plugs or 25-pin to 9-pin adapters when making RS-232 serial port connections, these devices may have internal wiring changes that can disrupt communications when implemented in conjunction with the Keri Systems serial wiring instructions. If you must use a gender changer plug, ensure it is a "straight-through" plug.

Revision 5.5 P/N: 01836-004


9.10.1 Direct PC to Controller Serial ConnectionIf you are making the connection between access control network and host computer via a direct serial connection, you must use or create one of the two following cables.

• If the host computer has a male DB-9 connector on the serial port, you must use a Keri Systems KDP-252 cable or create a cable according to Table 15 and Figure 9-14, both on page 59.

• If your host computer has a male DB-25 connector on the serial port, you must use a Keri Systems KDP-251 cable or create a cable according to Table 16 and Figure 9-15, both on page 60.

For Keri Systems' cables, each connector housing will be marked with either "PC END" or "PXL-250." If you create your own cable, use a permanent marker and mark each connector housing with the appropriate label (PC or PXL-250). Each connector is biased so it will fit on its corresponding socket in one direction; you cannot plug in a connector incorrectly.

Take the completed cable and insert the connector marked PC END into the serial port connector in the back of the host computer. Insert the connector marked PXL-250 into the J1 serial port connector at the top of the PXL-250 controller. Each housing on the serial cable's connectors has two small screws in the housing's case. These screws correspond with threaded stand-offs on the serial port connector bodies. With a thin-blade screwdriver, secure these screws to the stand-offs to ensure the cable does not loosen itself from its serial port connections.

P/N: 01836-004 Revision 5.5


9.10.1.1 PC/DB-9F to PXL-250/DB-9M Direct Serial ConnectionThis is the wiring information for a Keri Systems KDP-252 cable.

Figure 9-14: PC/DB-9F to PXL-250/DB-9M Cable Wiring

Table 15: PC/DB-9F to PXL-250/DB-9M Cable Wiring

PC DB-9F RS-232 Standard Wire Color PXL-250 DB-9M

Pin 2 – TxD Green Pin 3 – RxD

Pin 3 – RxD Red Pin 2 – TxD

Pin 5 – GND Black Pin 5 – GND

Connector Body Shield no connection

Revision 5.5 P/N: 01836-004


9.10.1.2 PC/DB-25F to PXL-250/DB-9M Direct Serial ConnectionThis is the wiring information for a Keri Systems KDP-251 cable.

Figure 9-15: PC/DB-25F to PXL-250/DB-9M Cable Wiring

Table 16: PC/DB-25F to PXL-250/DB-9M Cable Wiring

PC DB-25F RS-232 Standard Wire Color PXL-250 DB-9M

Pin 2 – RxD Green Pin 2 – TxD

Pin 3 – TxD Red Pin 3 – RxD


Connector Body Shield no connection

P/N: 01836-004 Revision 5.5


9.10.2 Modem to Controller Serial ConnectionIf you are making the connection between access control network and host computer via a set of modems, you will use two different cables: one between a modem and the host computer (see “Modem to Personal Computer Serial Connection” on page 65) and one between a modem and the master controller.

• If the modem has a female DB-25 connector, you must use a Keri Systems KDP-336 cable or create a cable according to Table 17 and Figure 9-16, both on page 62.

• If the modem has a female DB-9 connector, you must create a cable according to Table 18 and Figure 9-17, both on page 63.

• If the modem was purchased from Keri Systems, it comes with an adapter that accommodates a female DB-9 connector, should the modem have a DB-9 (instead of a DB-25) connector. Use this adapter cable in conjunction with a KDP-336 to make the modem/controller connection (see Figure 9-18 on page 64).

For Keri Systems' cables, each connector housing will be marked with either "PXL-250" or "MODEM." If you create your own cable, use a permanent marker and mark each connector housing with the appropriate label (PXL-250 or MODEM). Each connector is biased so it will fit on its corresponding socket in one direction; you cannot plug in a connector incorrectly.

Take the completed cable and insert the connector marked MODEM into the serial port connector in the back of the modem. Insert the connector marked PXL-250 into the J1 serial port connector at the top of the PXL-250 controller. Each housing on the serial cable's connectors has two small screws in the housing's case. These screws correspond with threaded stand-offs on the serial port connector bodies. With a thin-blade screwdriver, secure these screws to the stand-offs to ensure the cable does not loosen itself from its serial port connections.

Revision 5.5 P/N: 01836-004


9.10.2.1 Modem/DB-25M to PXL-250/DB-9M Cable WiringThis is the wiring information for a Keri Systems KDP-336 cable.

Figure 9-16: Modem/DB-25M to PXL-250/DB-9M Cable Wiring

Table 17: Modem/DB-25M to PXL-250/DB-9M Cable Wiring

Modem DB-25M RS-232 Standard Wire Color PXL-250 DB-9M

Pin 2 – RxD Red Pin 3 – RxD

Pin 3 – TxD Green Pin 2 – TxD

Pin 4 – RTS Brown Pin 7 – RTS


Pin 8 – CD Blue Pin 1 – CD

Pin 20 – DTR White Pin 4 – DTR

Connector Body Shield Connector Body

P/N: 01836-004 Revision 5.5


9.10.2.2 Modem/DB-9M to PXL-250/DB-9M Cable WiringThis is the wiring information for a cable that must be purchased or made by the installer.

Figure 9-17: Modem/DB-9M to PXL-250/DB-9M Cable Wiring

Table 18: Modem/DB-9M to PXL-250/DB-9M Cable Wiring

Modem DB-9M RS-232 Standard Wire Color PXL-250 DB-9M

Pin 1 – DCD Blue Pin 1 – DCD

Pin 2 – TxD Red Pin 2 – TxD

Pin 3 – RxD Green Pin 3 – RxD





Revision 5.5 P/N: 01836-004


9.10.2.3 Modem Adapter Cable ConnectionThis Adapter Cable is provided (if needed by the modem) with a modem purchased from Keri Systems. Connect the Adapter Cable between the modem and the KDP-336 Cable as shown in Figure 9-18.

Figure 9-18: Modem/Adapter Cable/Controller Connection

P/N: 01836-004 Revision 5.5


9.10.3 Modem to Personal Computer Serial ConnectionKeri Systems does not provide this cable. It is an off-the-shelf item from any computer supplier or electronics store, and its connector configuration is dependent upon the configuration of the serial port on the host computer. Based on the serial port of the modem and the PC, there are four possible cables.

• If the modem has a male DB-25 connector and your host computer has a female DB-9 connector on the serial port, purchase or create a cable according to Table 19 and Figure 9-19, both on page 66.




If you purchase a cable or create your own cable, use a permanent marker and mark each connector housing with the appropriate label (Modem or PC). Each connector is biased so it will fit on its corresponding socket in one direction; you cannot plug in a connector incorrectly.

Take the completed cable and insert the connector marked MODEM into the serial port connector in the back of the modem. Insert the connector marked PC into the serial port connector. Each housing on the serial cable's connectors has two small screws in the housing's case. These screws correspond with threaded stand-offs on the serial port connector bodies. With a thin-blade screwdriver, secure these screws to the stand-offs to ensure the cable does not loosen itself from its serial port connections.

Revision 5.5 P/N: 01836-004


9.10.3.1 Modem/DB-25M to PC/DB-9F Cable WiringThis is the wiring information for a cable that must be purchased or made by the installer.

Figure 9-19: Modem/DB-25M to PC/DB-9F Cable Wiring

Table 19: Modem/DB-25M to PC/DB-9F Cable Wiring

Modem DB-25M RS-232 Standard Wire Color PC DB-9F








P/N: 01836-004 Revision 5.5









Pin 7– GND Black Pin 7 – GND




Revision 5.5 P/N: 01836-004













P/N: 01836-004 Revision 5.5







Pin 2 – TxD Red Pin 3 – TxD

Pin 3 – RxD Green Pin 2 – RxD





Revision 5.5 P/N: 01836-004



P/N: 01836-004 Revision 5.5


10.0 Wiring Connections - SB-293Before performing any wiring or connection operations, ensure that controller power is OFF. Serious damage to sensitive components on the controller may occur if wiring changes are made while controller power is on.

The following instructions assume that TB-10 is facing up (see Figure 10-1). With one exception (the general-purpose relay outputs), all connections to the SB-293 satellite board are made on the left side of the unit. Specific information for making each wiring connection is provided in the Terminal Block Connections section on page 72.

Figure 10-1: The SB-293 Satellite Board

Revision 5.5 P/N: 01836-004


10.1 Terminal Block ConnectionsFollow these instructions as you make your wiring connections. Select the wire to be installed. Strip away 1/4 inch of insulation from the wire, place the wire into the appropriate slot on the terminal block, and tighten the corresponding screw on the top of the terminal block (see Figure 10-2). Make a firm connection, but be careful not to over tighten the screw.

Figure 10-2: Installing Wiring and Removing a Terminal Block

Please note that all of the terminal blocks slide off the SB-293 Satellite Board should it become necessary to disconnect any installed cables. Firmly grasp the connector and pull it away from the controller's printed circuit board (see Figure 10-2).

P/N: 01836-004 Revision 5.5


10.2 Two-Door Configuration

10.2.1 TB-7 - Lock Relay ConnectionThe lock relay is a Form C relay used to control the door lock. Please refer to the Lock Relay Output section starting on page 35 for more information on Lock relay outputs and output devices.

For a typical fail-safe door lock relay installation, refer to Table 23 and Figure 10-3 and make the following wiring and transorb connections to attach the door lock relay.

Figure 10-3: Fail-Safe Lock Relay Output Connections

For a typical fail-secure door lock relay installation using a door strike, refer to Table 23 and Figure 10-4 on page 74 and make the following wiring and transorb connections to attach the door lock relay.

Table 23: Lock Relay Output Connections

TB-7 Description

Pin 1 Normally-Open

Pin 2 Common


Revision 5.5 P/N: 01836-004


Figure 10-4: Fail-Secure Lock Relay Output Connections

P/N: 01836-004 Revision 5.5


10.2.2 TB-7 - Alarm Relay ConnectionThe Alarm Relay is a Form C relay that provides an output to trigger an audible signal (or a silent alarm) whenever the door is put into an alarm state (i.e. the door is forced open). It is also used to trigger an alarm signal whenever the door is held open too long (exceeding the Open Time set within the Doors access control program). Depending upon the type of alarm being installed and your application, your alarm may require a normally closed/common connection, a normally open/common connection, or a normally closed/common/normally open connection. Every application requires the common lead connection. Refer to the Alarm Relay Output section starting on page 36 for more information on Alarm relay outputs and output devices.

The enhanced alarm out annunciation feature (configured in the Doors software) can set this output to door forced annunciation for the B-door (door forced annunciation on the A-door is handled by the alarm out relay on the PXL-250 controller). Door held open alarm annunciation is connected to general-purpose output relays three and four (see the TB10 - General Purpose Output Relay Connections section starting on page 87).

For a typical alarm relay installation, refer to Table 24 and Figure 10-5 on page 76 and make the following wiring and transorb connections to attach the alarm relay.

Table 24: Alarm Output Relay Connections

TB-7 Description

Pin 4 Normally-Open

Pin 5 Common


Revision 5.5 P/N: 01836-004


Figure 10-5: Alarm Relay Output Connections

P/N: 01836-004 Revision 5.5


10.2.3 TB-10 - Door Held Open Alarm Relay ConnectionThese instructions apply if the enhanced alarm out annunciation feature (in the Doors software) has configured these outputs to door held open annunciation. Otherwise skip to the TB10 - General Purpose Output Relay Connections section starting on page 87.

The Door Held Open Alarm Relay is a Form C relay that provides an output to trigger an audible signal (or a silent alarm) whenever the door is put into an alarm state; whenever the door is held open too long (exceeding the Open Time set within the Doors access control program). General-purpose output four can be configured to be the door held open alarm for the A-door on the PXL-250 controller. General-purpose output 3 can be configured to be the door held open alarm for the B-door on the SB-293 satellite board. Refer to the Door Held Open Alarm Relay output section on page 36 for more information on alarm relay outputs and output devices.

For a typical door held open alarm relay installation for the A-door, refer to Table 25 and Figure 10-6, both on page 78, and make the following wiring and transorb connections to attach the door held open alarm relay.

For a typical door held open alarm relay installation for the B-door, refer to Table 26 and Figure 10-7, both on page 79, and make the following wiring and transorb connections to attach the door held open alarm relay.

Revision 5.5 P/N: 01836-004


Figure 10-6: Door Held Open Alarm Relay Output Connections – A-Door

Table 25: Door Held Open Alarm Output Relay Connections

A-Door

TB-10 Description

Pin 4 Normally-Open – GPO 4

Pin 5 Common

Pin 6 Normally-Closed – GPO 4

P/N: 01836-004 Revision 5.5


Figure 10-7: Door Held Open Alarm Relay Output Connections – B-Door

Table 26: Door Held Open Alarm Output Relay Output Connections

B-Door

TB-10 Description

Pin 1 Normally-Open – GPO 3

Pin 2 Common

Pin 3 Normally-Closed – GPO 3

Revision 5.5 P/N: 01836-004


10.2.4 TB10 - General Purpose Output Relay ConnectionsIf output relays three and four have not been configured for use for door held open annunciation (as described in the previous section) they are available for general-purpose use. General-Purpose Output Relays are Form C relays that provide an output to enable or disable a device outside the controller. This device can be attached to the relay's normally closed circuit so that the device is always on until the relay energizes to open the circuit and turn it off. Or, this device can be attached to the relay's normally open circuit so that the device is always off until the relay energizes to turn it on.

Depending upon the type of device being installed and your application, the device may require a normally closed/common connection, a normally open/common connection, or a normally closed/common/normally open connection. Every application requires the common lead connection. Refer to the General-Purpose Output Relay section on page 37 for more information on general-purpose relay outputs and output devices.

For examples of typical general-purpose relay installations, refer to Table 27, and Figures 10-8 and 10-9, both on page 81, and make the following wiring and transorb connections.

Table 27: General-Purpose Output Relay Connections – Two-Door Configuration

TB-10 Description

TB-10, Pin 1 Normally-Open – GPO 3

TB-10, Pin 2 Common

TB-10, Pin 3 Normally-Closed – GPO 3


TB-10, Pin 5 Common


P/N: 01836-004 Revision 5.5


Figure 10-8: Normally Open General Purpose Relay Output Connections - Two-Door Configuration

Figure 10-9: Normally Closed General Purpose Relay Output Connections - Two-Door Configuration

Revision 5.5 P/N: 01836-004


10.2.5 TB-8 - Door Status Switch Input ConnectionThe Door Status switch indicates the state of the door (open or closed). If a door status switch is not being used, install a jumper between pins 1 and 2 of TB-8. The normal state of this input is a closed circuit that will be opened when an input is generated. No voltage is applied at this input; the circuit is opened and closed corresponding with the door status. Refer to the Door Status Switch Input section on page 32 for more information on Door Status Switch inputs and input devices.

NOTE: The SB-293 Satellite Board must have been configured for two door operation for the door status switch input connections to be valid. If the SB-293 board has been configured for general-purpose inputs and outputs, refer to the Additional Inputs/Outputs Configuration section on page 87.

Refer to Table 28 and Figure 10-10 and make the following connections to attach a door status input.

Figure 10-10: Door Status Switch Input Connections

NOTE: If a ground lead from the RTE input has already been installed on TB-8, pin 2, loosen the terminal connector and insert the door status switch ground lead beside the RTE input ground lead.

Table 28: Door Status Switch Input Connections

TB-8 Description

Pin 1 Door Status Switch Input

Pin 2 Ground/Common

P/N: 01836-004 Revision 5.5


10.2.6 TB-8 - Request to Exit Input ConnectionRequest to Exit (RTE - also known as REX) devices typically unlocks the door to allow egress from the building. The SB-293 Satellite Board may accept input from devices such as switches, motion sensors, or floor mats. The normal state of this input is an open circuit that will be closed when an input is generated. No voltage is applied at this input; the circuit is completed to indicate an RTE event. Refer to the Request to Exit Input section on page 33 for more information on RTE inputs and input devices.

NOTE: The SB-293 Satellite Board must have been configured for two door operation for the RTE input connections to be valid. If the SB-293 board has been configured for general purpose inputs and outputs refer to the Additional Inputs/Outputs Configuration section on page 87.

Refer to Table 29 and Figure 10-11 and make the following connections to attach an RTE input.

Figure 10-11: Request to Exit Input Connections

NOTE: If a ground lead from the Door Status Switch input has already been installed on TB-8, pin 2, loosen the terminal connector and insert the RTE ground lead beside the door status input ground lead.

Table 29: Request to Exit Input Connections

TB-8 Description

Pin 2 Ground/Common

Pin 3 RTE Signal

Revision 5.5 P/N: 01836-004


10.2.7 TB-8 - Auxiliary Request to Exit Input ConnectionThe Auxiliary Request to Exit (RTE - also known as REX) allows a secondary input device to unlock the door to allow egress from the building. The SB-293 Satellite Board may accept input from devices such as switches, motion sensors, or floor mats. The normal state of this input is an open circuit that will be closed when an input is generated. No voltage is applied at this input; the circuit is completed to indicate an RTE event. Refer to the Auxiliary RTE Input section on page 33 for more information on RTE inputs and input devices.

NOTE: The SB-293 Satellite Board must have been configured for two door operation for the auxiliary RTE input connections to be valid. If the SB-293 board has been configured for general purpose inputs and outputs refer to the Additional Inputs/Outputs Configuration section on page 87.

Refer to Table 30 and Figure 10-12 and make the following connections to attach an auxiliary RTE input.

Figure 10-12: Auxiliary Request to Exit Input Connections

NOTE: If a ground lead from general-purpose input 4 has already been installed on TB-8, pin 5, loosen the terminal connector and insert the auxiliary RTE ground lead beside the general-purpose input ground lead.

Table 30: Auxiliary Request to Exit Input

Connections

TB-8 Description

Pin 4 RTE Signal

Pin 5 Ground/Common

P/N: 01836-004 Revision 5.5


10.2.8 TB-8/TB-9 - General Purpose Input ConnectionsGeneral-purpose inputs may be used in conjunction with the programmable input/output feature of the Doors access control software. The normal state of these inputs can be either a closed circuit that will be opened when an input is generated or an open circuit that will be closed when an input is generated. No voltage is applied at these inputs; the circuits are either opened or closed to indicate an input event. Refer to the General Purpose Input section on page 34 for more information on general-purpose inputs and input devices.

For examples of typical general purpose input connections, refer to Table 31 and Figure 10-13 on page 86 and make the following connections.

Table 31: General Purpose Input Connections – Two-Door Configuration

TB-8/TB-9 Description

TB-8, Pin 1 door status switch input - normally closed

TB-8, Pin 2 Common/Ground

TB-8, Pin 3 RTE input - normally open

TB-8, Pin 4 GPI 3 inputa/Aux RTE-Bb input - normally open

a. General Purpose inputs can accept either a normally closed or normally open signal. The type of signal depends upon the type of input device. The Doors software is then programmed to accept that type of input.

b. The Auxiliary RTE input feature is not available in 16-bit Doors software applications.


TB-8, Pin 6 GPI 4 inputa







Revision 5.5 P/N: 01836-004


For the top application in Figure 10-13, a circuit is opened to create an input event at the controller. For the lower application in Figure 10-13, the motion detector senses motion and closes a circuit to create an input event at the controller.

Figure 10-13: General Purpose Input Connections - Two-Door Configuration

NOTE: Figure 10-13 provides examples of possible general purpose input connections based on the information provided in Table 31 (on page 85). Make your input connections in a similar manner to these, based on the pinouts given in Table 31.

P/N: 01836-004 Revision 5.5


10.3 Additional Inputs/Outputs Configuration

10.3.1 TB-7/TB-10 - General Purpose Output Relay ConnectionsGeneral Purpose Output Relays are Form C relays that provide an output to enable or disable a device outside the controller. This device can be attached to the relay's normally closed circuit so that the device is always on until the relay energizes to open the circuit and turn it off. Or, this device can be attached to the relay's normally open circuit so that the device is always off until the relay energizes to turn it on.

Depending upon the type of device being installed and your application, the device may require a normally closed/common connection, a normally open/common connection, or a normally closed/common/normally open connection. Every application requires the common lead connection. Refer to the General-Purpose Output Relay section on page 37 for more information on general-purpose relay outputs and output devices.

For examples of typical general-purpose relay installations, refer to Table 32, and Figures 10-14 and 10-15, both on page 88, and make the following wiring and transorb connections.

Table 32: General-Purpose Output Relay Connections – Additional I/O Configuration



TB-7, Pin 2 Common

TB-7, Pin 3 Normally- Closed – GPO 1


TB-7, Pin 5 Common



TB-10, Pin 2 Common



TB-10, Pin 5 Common

TB-10, Pin 6 Normally-Closed GPO 4

Revision 5.5 P/N: 01836-004


In the following application, an event causes programming in the controller to close the normally-open line, temporarily activating a video camera.

Figure 10-14: Normally Open General Purpose Relay Output Connections - General Purpose I/O Configuration

In the following application, an event causes programming in the controller to open the normally-closed line, temporarily turning off a sensor device.

Figure 10-15: Normally Closed General Purpose Relay Output Connections - General Purpose I/O Configuration

P/N: 01836-004 Revision 5.5


10.3.2 TB-8/TB-9 - General Purpose Input ConnectionGeneral-purpose inputs may be used in conjunction with the programmable input/output feature of the Doors access control software. The normal state of these inputs can be either a closed circuit that will be opened when an input is generated or an open circuit that will be closed when an input is generated. No voltage is applied at these inputs; the circuits are either opened or closed to indicate an input event. Please refer to the General Purpose Input section on page 34 for more information on general-purpose inputs and input devices.

For examples of typical general purpose input connections, refer to Table 33 and Figure 10-16 on page 90 and make the following connections.

Table 33: General-Purpose Input Connections – Additional I/O Configuration



a. General Purpose inputs can accept either a normally closed or normally open signal. The type of signal depends upon the type of input device. The Doors software is then pro-grammed to accept that type of input.












Revision 5.5 P/N: 01836-004


For the upper application in Figure 10-16, a circuit is opened to create an input event at the controller. For the lower application in Figure 10-16, the motion detector senses motion and closes a circuit to create an input event at the controller.

Figure 10-16: General Purpose Input Connections - Additional I/O Configuration

P/N: 01836-004 Revision 5.5


11.0 System Operation

11.1 Powering the System for the First TimeNOTE: Before turning the power on for the first time, please verify the earth ground1 has been connected at pin 3 on TB-2.

NOTE: Do not connect the 12 VDC Power Supply’s Terminal Block Output to the TB-2 connector on the PXL-250 until you have completed all the steps in section 5.1.

When powering on the system for the first time, the installer should verify the 12 VDC controller supply voltage and reset system RAM to ensure proper operation of the PXL-250 controller.

11.1.1 Verify 12 VDC Supply VoltageTo verify the 12 VDC supply voltage:

1. Set the DVM to a DC volts scale capable of reading 12 VDC.2. Turn the power supply ON.3. Place the Red DVM lead on the power supply’s terminal block output - Pin 1.4. Place the Black DVM lead on the power supply’s terminal block output - Pin 2.5. Check the DVM reading. It should read between +12 VDC to +14 VDC.6. If the DVM does not read between +12 VDC to +14 VDC, verify the power supply

is of the correct voltage, verify the cable length does not exceed 200 feet, and verify the cable gauge is AWG 18. This problem must be corrected before power can be supplied to the controller.

7. Turn the power supply OFF.8. Connect the power supply’s terminal block output to the TB-2 connector on the

PXL-250 controller.9. The controller is now ready to be powered ON.

NOTE: On long power cable runs, keep in mind the resistance in the cable itself causes a drop in voltage at the end of the run. The power supply must be able to account for this voltage drop.

1. Ground wire is green with yellow tracer.

Revision 5.5 P/N: 01836-004


11.1.2 Verify Wiegand Compatible Reader Supply VoltageAll Keri Systems proximity readers use 5 to 12 VDC power (except for the MS-9000 which uses 12 to 24 VDC power) while most Wiegand compatible readers use just 5 VDC power. For Wiegand configured PXL-250 controllers, there is a warning LED on the controller board to indicate if the controller is applying 12 VDC to the Wiegand compatible reader (see Figure 11-1). If your Wiegand compatible reader does operate on 5 VDC no changes need to be made, the default position for the jumper is to set power to 5 VDC. If your Wiegand compatible reader requires 12 VDC, turn the controller power off and follow the instructions in the Jumper Settings section on page 28 to set the reader supply voltage to 12 VDC. When power is restored, the warning LED will turn on indicating 12 VDC is being supplied to the Wiegand compatible reader.

Figure 11-1: Wiegand 12 VDC Warning LED

NOTE: Applying 5 VDC to a 12 VDC reader will not damage the 12 VDC reader. However, applying 12 VDC to a 5 VDC reader very likely will damage the 5 VDC reader. Be sure you are applying the correct supply voltage to the reader. Keri Systems cannot be responsible for 5 VDC readers damaged by excessive voltage.

11.1.3 Resetting the Controller's RAMIf you're turning system power on for the first time, the PXL-250 controller's RAM must be reset before performing any other action. This clears any spurious information that may be in the RAM in preparation for entering your access control information.

On the controller, insert a jumper across pins 1 and 2 of JP3. Hold the S1 Address and Diagnostics Button down and turn the controller's power on (see Figure 9-1 on page 39 and Figure 11-2 on page 93). The beeper for the reader attached to the controller will beep as power comes on followed by a beep-beep indicating the controller's firmware has reset the controller's RAM. Release S1. If the optional Alpha/Numeric Plug-in Display has been installed, it will display a "SYSTEM RESET" message. Remove the jumper on JP-3. The controller is now ready for programming.

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Figure 11-2: Close-Up of JP-3, S1, and Address Display LEDs

NOTE: Resetting the system RAM completely erases all information within the PXL-250 controller. Should there be any information in system RAM from an access control installation and the system RAM is reset, the information in the controller is lost and cannot be recovered from the controller.

11.1.4 Controllers with ModemsIf the controller is a master controller and it communicates with the host computer via modem, power up the modem before powering up the controller. This ensures the modem is ready and able to communicate with the controller when the controller becomes ready to determine the method of communication with the host computer. While most modems initialize quickly and can respond to the controller’s inquiry, some take more time and result in the controller not recognizing the modem and configuring itself for communication with the host computer via a direct-connect serial cable.

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11.2 Normal OperationFor normal operation, turn the system power on. The power LED should be on. On the master controller the network LED should be blinking, indicating it is communicating with other PXL-250 controllers on the network. If this is a single controller network, the LED will blink for several minutes until it determines that there are no other controllers with which to communicate, then it will turn off. The address programmed into the controller will flash on the address display LEDs for 2 seconds.If the optional Alpha/Numeric Plug-in Display has been installed, it will display a Keri Systems header and the controller's address (see Figure 11-3).

Figure 11-3: PXL-250 Controller Standard Operation Message

11.3 Viewing Controller AddressesTo view a controller's address, click S1 (see Figure 9-1 on page 39 and Figure 11-2 on page 93). The controller's address appears on the address display for 2 to 3 seconds.

11.4 Setting Controller AddressesTo set the desired operating address for the controller, turn the controller's power off. Verify JP3 is not installed (see Figure 9-1 on page 39 and Figure 11-2 on page 93 – if JP3 is installed, the controller RAM will be reset when the power is turned on). Hold the S1 Address and Diagnostics Button down and turn the controller's power on. The beeper for the reader attached to the controller will beep as power comes on followed by a beep-beep indicating the controller's firmware has entered the address setting mode. Release S1. The address display LEDs then become active and the controller's address can be set. If an Alpha/Numeric Display (LCD-1) is connected to the controller, "Address Change" will appear on the display. The address range is from 1 to 128 (the Master Controller must always be set to address 1).

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Quickly double clicking S1 toggles between increasing and decreasing the controller address. The top LED character will display either a "+" or a "-" to show which direction is active. A single click of S1 changes the controller address by 1. If you're at address 128, a +1 click will roll the address over to 1; conversely, if you're at address 1 a -1 click will roll the address over to 128. Holding S1 down rapidly scrolls through the addresses. Click through the address range until the desired address is displayed by the address display LEDs. After the new address has been set, you must wait approximately 30 seconds. There is a timer in the controller's firmware that assumes that after 30 seconds of inactivity (no address clicks), the entered address is the desired address for that controller. When the 30-second timer expires, there will be a beep-beep (from the “A-Door” reader attached to the controller) indicating the controller has recognized and accepted the new address and the address LEDs will turn off. If an Alpha/Numeric Display (LCD-1) is connected to the controller, "UNIT ##" will appear on the display (where ## is the controller's address - see Figure 11-3 on page 94).

11.5 Master Controller RequirementsThe master controller must be set to address 1 so that all slave controllers on the access control network can identify the master controller. For the master controller to correctly identify all slave controllers on the network, the Auto-Configuration routine within the Doors program must be run. This instructs the master controller to poll all other controllers on the network for addresses and configuration information (the Auto-Configuration button is found under the Setup/System/controllers tab in the Doors program).

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11.6 Proximity Reader Responses to Access Control EventsDuring day-to-day activity, a proximity reader will respond to access control events in a specific manner. Refer to Table 34 for a summary of the reader's LED and beeper actions during access control events.

11.7 I/O ConfigurationAll I/O configuration functions are handled within the Doors access control program. For specific information, please refer to the Doors User's Guide (P/N 01821-002) or to the on-line help information found within the Doors program.

Table 34: Proximity Reader Responses to Access Control Events

Event Reader’s LED Status Reader’s Beeper Status

waiting for an event

displays a steady Amber LED silent

access granted

displays a Green LED until the door is closed or the door unlock time is reached

one long Beep

access denied

flashes a Red LED one short Beep

door alarm flashing Red LED for the duration of the alarm condition

pulsating Beep for the dura-tion of the alarm condition

door RTE displays a Green LED until the door is opened or the door unlock time is reached

one long Beep

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12.0 Periodic MaintenanceTo ensure the best operating conditions for your access control system, Keri Systems recommends performing the following checks periodically at each controller.

1. Verify the controller's earth ground is still a quality earth ground.2. Verify all terminal block connections continue to be secure.3. Perform the signal strength test found in the Troubleshooting and Diagnostics

Appendix to ensure that reader signal quality at the controller is maintained and that reader read range continues to be high.

4. If the controller has a backup battery for operation during a power outage, disconnect the power and verify the controller continues to operate under backup battery power.

If there are any concerns regarding the operation or performance of the PXL-250 Controller or SB-293 Satellite board, please review the Troubleshooting and Diagnostics Appendix.

A number of status LEDs have been placed on the controller PCB to help maintain the controller and verify controller operation. Please refer to Figure 9-1 on page 39 and Figure 12-1 for the location of these LEDs.

• Communication LEDs• Power LEDs• Lock and Alarm LEDs

Figure 12-1: Modem/Controller Communication LEDs

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12.1 Communication LEDsTo help monitor controller/modem communication and to help troubleshoot modem communication issues, a set of LEDs have been added to the upper-right corner of the controller board (see Figure 9-1 on page 39 and Figure 12-1).

These LEDs flicker, corresponding to the state of the following lines.

• TXD – Transmit Data• RXD – Receive Data• DTR – Data Terminal Ready• CTS – Clear To Send

By noting the operation being performed by the controller and monitoring the LED states, you are able to determine if data transmission between modem and controller is being performed.

12.2 Power LEDsTwo LEDs are used to monitor the status of the power being supplied to the controller.

• Fuse LED• Power/Voltage LED

12.2.1 Fuse LEDThe Fuse LED (at the left side of the controller) is attached to a power monitoring circuit protecting the 12 VDC power connection. The fuse circuit monitors power polarity and power quality. This is a thermal fuse; if there is a power problem, the fuse overheats and opens, removing power from the controller, protecting it from damage. After a period of time the fuse cools off, reconnecting the power circuit. In standard operation, the Fuse LED is off.

• If the LED is red, the fuse is open because the power and ground lines are reversed. Turn controller power off and verify the polarity of the power coming to the controller.

• If the LED is green, the controller’s fuse has opened because there is a power problem, protecting the controller. This controller should be serviced as soon as possible.

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12.2.2 Power/Voltage LEDThe Power/Voltage LED (at the right side of the controller) is attached to a circuit that monitors the voltage level received by the controller. In standard operation this LED is green (meaning the power being provided to the controller meets the controller’s power specifications.

If the LED is red, this means an under or over voltage condition exists that can affect the operation of the controller. When an under or over voltage condition is detected, the address display (see Figure 9-1 on page 39 and Figure 11-2 on page 93) shows the voltage value detected by the controller. With a DVM, verify this voltage and make corrections to the voltage source as necessary to bring the controller voltage back to 12 VDC.

12.3 Lock and Alarm LEDsThe Lock and Alarm LEDs reflect the status of the Lock and Alarm relays. When these relays are not energized (their normal state) the LEDs are off.

When a door is unlocked (whether through a card presentation or manual operation), the Lock LED turns green and stays green until the door is locked again.

When a door goes into an alarm state, the Alarm LED turns green and stays green for the duration of the alarm state.

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13.0 GlossaryALARM RELAY OUTPUT – a relay on the controller that changes its state upon command by the controller. Typically the alarm relay output activates an audible alarm used for door alarms.

AUXILIARY RTE – a second input source that informs the controller that someone has requested egress from a secure area. RTE and REX are common abbreviations. See REQUEST TO EXIT.

COM PORT – A COM port is a hardware device that allows a computer to communicate with external devices.

CONTROLLER – a central unit containing a microprocessor, a database, inputs, and outputs. The microprocessor processes information received from the inputs, compares it to information in the database, and determines if an output should be generated.

DOOR FORCED ALARM – a door that is forced open generates a door forced alarm.

DOOR HELD OPEN ALARM – a door that is held open beyond the Open Time (as programmed in the Doors program) generates a held open alarm.

DOOR SWITCH – a switch that reflects the current state of the door: if the door is open, the switch is open; if the door is closed, the switch is closed.

EARTH GROUND – an electrical connection point that brings all electrically neutral lines to the earth's surface potential (essentially zero potential). A good earth ground protects electrical devices from transients such as power surges and lightning strikes, and drains electrical interference from data, communication, and power lines that support these electrical devices. The ground wire is green with yellow tracer.

ELECTROMAGNETIC INTERFERENCE – Excess electromagnetic energy radiated by an electrical device that may affect the operation of other electrical devices.

EMI – see ELECTROMAGNETIC INTERFERENCE.

FAIL-SAFE – fail-safe means that if the power should fail at a door, the door will automatically unlock allowing egress. A fail-safe door ensures people will be able to exit a secured area through that door in the case of an emergency.

FAIL-SECURE – fail-secure means that if the power should fail at a door, the door will automatically lock and not allow entrance, but will continue to allow egress. A fail-secure door ensures a secured area remains secure regardless of the situation.

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GLOBAL UNLOCK – a normally-open input (as programmed in the Doors32 program) that, when closed, generates a signal that unlocks all doors in the access control network.

INPUT – an electronic sensor on the controller that detects a change of state in a device outside the controller. See NORMALLY CLOSED, NORMALLY OPEN.

LOCK RELAY OUTPUT – a relay on the controller that changes its state upon command by the controller. Typically the lock relay output unlocks a secure door.

NETWORK – a series of controllers linked together via a communication cable.

NORMALLY CLOSED – an input device that continually keeps a circuit active or complete. A state change is generated when a normally closed device is opened. See INPUT.

NORMALLY OPEN – an input device that continually keeps a circuit open or incomplete. A state change is generated when a normally open device is closed. See INPUT.

OUTPUT RELAY – a device that changes its state upon receiving a signal from the controller. Typically the state change prompts an action outside of the controller such as activating or inactivating a device.

PROXIMITY – a method of reading identification codes from cards or key tags that require bringing the card or key tag within the proximity of a reader. No mechanical interaction between card and reader is required for the reader to receive the identification code.

READER – a device that "reads" an identification code from a card, key tag, magnetic stripe, or related item.

RELAY, FORM C – a device that has both normally closed and normally open circuits. When the relay is not energized, the normally closed circuit is complete and the normally open circuit is open. When the relay is energized the circuits switch roles, the normally closed circuit is open and the normally open circuit is complete. This dual nature of Form C relays allows for two types of applications outside the controller. A device may be attached to the normally closed circuit so that it is always on until the relay energizes to open the circuit and turn it off. Or, a device may be attached to the normally open circuit so that it is always off until the relay energizes to turn it on.

REQUEST TO EXIT – a signal that informs the controller that someone has requested egress from a secure area. RTE and REX are common abbreviations.

REX – see REQUEST TO EXIT.

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RS-232 – a serial communication protocol for connecting data terminal devices. RS-232 is the most commonly used communication protocol. It works best over shorter distances.

RS-485 – a serial communication protocol for multi-drop communications. It is used for higher speed and longer distance communications.

RTE – see REQUEST TO EXIT.

STAR PATTERN – multiple sets of daisy chained controllers all connected to the master controller at the center of the star.

SUPPRESSION – the addition of a device to an electrical circuit that minimizes or prevents transients from affecting the proper operation of that circuit.

TRANSIENT SUPPRESSOR – a device added to an electrical circuit that minimizes the affects of transients.

TRANSIENTS – electrical surges or spikes conducted through power or data lines. Transients are generated as electrical devices are turned on or off.

TRANSORB – an electrical suppression device. See SUPPRESSION.

WIEGAND COMPATIBLE DEVICES – a proprietary coding format for information used by many of the suppliers of cards, key tags, proximity readers, magnetic stripe readers, bar code readers, and related items.

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14.0 Index

AAlarm Out Relay, 36Anti Passback, 32

BBadging - See Photo Badge Management

CCable Requirements

Earth Ground, 19Input Power, 19Inputs and Outputs, 20Proximity Readers, 20RS-232, 19RS-485, 19Wiegand Compatible Devices, 20

Cable Requirements, 19Cables

Routing, 27Cautions - See System Cautions

EEarth Ground, 22Electromagnetic Interference, 22EMI - see Electromagnetic InterferenceEnrollment Reader, 26

FFail-Safe Lock, 35Fail-Secure Lock, 36Features

PXL-250, 11SB-293, 13

IInputs

Auxiliary Request to Exit, 33Door Status Switch, 32General Purpose

SB-293, 34Global Unlock, 33Normally Closed, 32Normally Open, 32Request to Exit, 33

Inputs, 32

JJumper Settings

PXL-250, 28SB-293, 30

LLock Relay, 35

OOutputs

Alarm Out Relay, 36Door Held Open Relay, 36General Purpose Relay

Normally Open, 37General Purpose Relay, 37Lock Relay

Fail-Safe, 35Fail-Secure, 36

Lock Relay, 35Outputs, 35

PPC COM Port, 24PC System Requirements

Photo Badge Management, 21PC System Requirements, 21Periodic Maintenance, 97Photo Badge Management

Requirements, 21Proximity

Principle of Operation, 16

RReader

Enrollment Reader, 26Wiegand Reader Voltage, 29

Routing Cables, 27

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SSB-293 Installation, 30Specifications

Cable Requirements, 19Controller Power, 17Current Draw, 18Humidity Range, 17Input Device Configuration, 18Memory Retention, 18Operating Temperature, 17Output Relay Contact Rating, 18Unit Dimensions, 17

Specifications, 17System Cautions

Earth Ground, 22Electromagnetic Interference, 22PC COM Port, 24Transient Suppression, 23

System Cautions, 22System Installation

Advance Planning, 25Controllers

Central Mounting, 25Distributed Mounting, 26

Enclosure, 26Enrollment Reader, 26Planning, 25PXL-250

Jumper Settings, 28Routing Cables, 27RS-485 Networking, 28SB-293 Installation, 30SB-293 Jumper Settings, 30Utility Requirements, 25Where to Install Controllers, 25

System Installation, 25System Installation,Wiring Connections, 31System Operation

12 VDC, 91First Time Power, 91I/O Configuration, 96Master Controller Requirements, 95Normal Operation, 94Reader Responses to Events, 96Reset Controller RAM, 92Setting Controller Addresses, 94Viewing Controller Addresses, 94Wiegand Reader Supply Voltage, 92

System Operation, 91

TTransient Suppression, 23

UUtility Requirements, 25

WWiring Connections

PXL-250Alarm Relay, 50Auxiliary RTE A-Door, 46Controller Direct to PC, 58Door Status Switch, 48Earth Ground, 54Global Unlock, 45Lock Relay, 52Modem to Controller, 61Modem to PC, 65Power, 54Proximity, 41Readers, 41Request to Exit, 47RS-232, 57RS-485 Network, 55Wiegand, 42

PXL-250, 39SB-293

2-Door ConfigurationAlarm Relay, 75Auxiliary Request to Exit, 84Door Held Open Relay, 77Door Status Switch, 82General Purpose Input, 85General Purpose Output Relay, 80Lock Relay, 73Request to Exit, 83

Input/Output ConfigurationGeneral Purpose Input, 89General Purpose Output Relay, 87

SB-293, 71Terminal Block, 40, 72

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Appendices1. Documentation List2. Recommended Peripherals List3. Network Wiring4. Elevator Control5. Transient Protection6. COM Test Quick Start Guide7. Start-Up Checklist8. Troubleshooting/Diagnostics Guide9. PXL-250 Quick Start Guide10. SB-293 Quick Start Guide11. Upgrading the EPROM or PIC12. Warranty Information13. European Community Declaration of Conformity

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