md-20 mini dslam - ctc union technologies co.,ltd

User Manual

MD-20 Mini DSLAM Digital Subscriber Line Access Multiplexer

Mandatory Regulations


The following sections describe the mandatory regulations that govern the installation and operation of the MD-20.

List of Terms

Table 1 lists the terms used in this chapter.

Table 1 List of Terms

Term Expansion

CE Conformité Européenne EEC European Economic Community FCC Federal Communications Commission

General Requirements

The sections that follow outline the mandatory regulations that govern the installation and operation of the MD-20. You must adhere to these instructions so that your system meets regulatory requirements.

Danger 1 – When removing cards from a shelf under power, some of the components such as the DC converters may be extremely hot. Handle by the card guides only.

Warning1 – This unit contains no user-serviceable parts. Refer servicing to qualified personnel. Warning 2 – To prevent accidental electrical short circuits, align the card correctly between the card guides before you insert it in the slot.

Prevention of Access

The MD-20 must be accessible only to authorized personnel. Install this apparatus in a restricted access location or similar environment to prevent unauthorized access.

EMC Compliance

EMC compliance may require the use of ferrites, shielded cables or other special accessories. Where required, these special accessories must be installed as per the instructions.

I


United States

This section describes the mandatory regulations that govern the installation and operation of the MD-20 in the United States.

Federal Communications Commission

This equipment has been tested and found to comply with the FCC requirements for emission of electromagnetic energy for Class A (part 15 subpart B).

European Regulations

EU Compliance Statement

This product complies with the requirements set out in the Council Directive on the Approximation of the laws of the Member States relating to Electromagnetic Compatibility Directive (89/336/EEC).

This product also complies with the Low Voltage Directive 73/23/EEC in order to comply with the requirements in the Council Directive 73/23/EEC relating to electrical equipment designed for use within certain voltage limits and the Amendment Directive 93/68/EEC.

General

This equipment must be permanently grounded.

Safety Approval

The system meets the Product Safety Requirements identified in EN60950: 2003.

II

Contents

Contents


List of Figures ............................................................................................................................. V

List of Tables .............................................................................................................................. VI

Preface ..........................................................................................................................................1

Scope ......................................................................................................................................... 1 Audience........................................................................................................................................ 1 Related Documentation................................................................................................................. 1 Documentation Conventions ......................................................................................................... 1

1 — Installation of the MD-20 ................................................................................................3

1.1 Pre-Installation .................................................................................................................4

1.1.1 Tools and Test Equipment Requirements........................................................................ 4 1.1.2 Safety Requirement.......................................................................................................... 4 1.1.3 Electrostatic Discharge Protection ................................................................................... 4

1.2 Hardware Installation........................................................................................................5

1.2.1 Installation Overview ........................................................................................................ 5 1.2.2 Mounting the Shelf and Rack ........................................................................................... 6 1.2.3 Power and Ground Connections ...................................................................................... 8 1.2.4 Inserting a Fan Card into the Shelf ................................................................................ 10 1.2.5 Inserting an Air Filter into the Shelf ................................................................................ 10 1.2.6 Setting PoE Function (Set As Required)........................................................................ 11 1.2.7 Inserting Trunk Card and Line Cards into the Shelf....................................................... 12 1.2.8 Connecting the XDSL interfaces .................................................................................... 13 1.2.9 Connectors on Line Cards ............................................................................................. 13 1.2.10 Connecting the GBE trunk interface............................................................................... 14 1.2.11 Ethernet Port (MGMT) on Trunk Card............................................................................ 15 1.2.12 Console Port (COM) on Trunk Card............................................................................... 16 1.2.13 Housekeeping and Alarm Contact Output Interface on DCPWR................................... 17

1.3 Provisioning a Management IP port ...............................................................................18

1.4 Configuration Import/Export ...........................................................................................19

1.5 Firmware Update............................................................................................................29

III

Contents

2 — Operating and Maintaining the MD-20 ........................................................................33

2.1 Maintenance requirement...............................................................................................34

2.1.1 Tools and Equipment Requirements.............................................................................. 34 2.1.2 System Spares ............................................................................................................... 34 2.1.3 Dispatching Maintenance Personnel.............................................................................. 34 2.1.4 Electrostatic Discharge Protection ................................................................................. 35 2.1.5 Routine Maintenance ..................................................................................................... 35

2.2 Powering the DSLAM Up or Down .................................................................................36

2.3 Controls and LED Indication...........................................................................................37

2.3.1 GE1AC Card .................................................................................................................. 37 2.3.2 AL5EC/AL5BC/AL5AC Card .......................................................................................... 39 2.3.3 DC Power Card .............................................................................................................. 40 2.3.4 FAN Card ....................................................................................................................... 41

2.4 Replacing Units ..............................................................................................................42

3 — Troubleshooting the MD-20 ........................................................................................45

3.1 Introduction to Troubleshooting......................................................................................46

3.2 Resolving Problems Indicated Through LEDs................................................................46

3.3 Resolving Problems Indicated Through Alarms .............................................................48

3.4 Procedures for Troubleshooting the MD-20...................................................................48

Abbreviations

IV

List of Figures

List of Figures

Figure 1-1 Console Setting.......................................................................................................................... 5

Figure 1-2 Mounting Bracket Orientation (Top View) ............................................................................... 6

Figure 1-3 Shelf Mounting Bracket Position for Standard Mount .............................................................. 7

Figure 1-4 DC Power card........................................................................................................................... 8

Figure 1-5 MD-20 DC Power Connector ................................................................................................... 9

Figure 1-6 PoE function jumper position on GE1AC card........................................................................ 11

Figure 1-7 Inserting trunk card and line cards into the shelf ..................................................................... 12

Figure 1-8 Line Interface Cable ................................................................................................................ 13

Figure 1-9 Pin Assignment of LINE and POTS Interfaces ....................................................................... 13

Figure 1-10 Connecting optical fiber to the trunk port.............................................................................. 14

Figure 1-11 RJ45 Ethernet Port (MGMT)................................................................................................. 15

Figure 1-12 RJ45 Console Port (COM)..................................................................................................... 16

Figure 1-13 Pin Assignment of Console Interface .................................................................................... 16

Figure 1-14 Pin assignment of Housekeeping and Alarm Contact Output ............................................... 17

Figure 1-15 DB Configuration Concept .................................................................................................... 19

Figure 1-16 Firmware update no action .................................................................................................... 30

Figure 1-17 Firmware update FTP Get Image Success ............................................................................. 31

Figure 1-18 Firmware update FLASH Write Image In Progress .............................................................. 31

Figure 1-19 Firmware update FLASH Write Success............................................................................... 32

V

List of Tables

List of Tables

Table 1-1 Required Installation Tools and Materials .................................................................................. 4

Table 1-2 PoE function jumper setting rule............................................................................................... 11

Table 2-1 Required Installation Tools and Materials ................................................................................ 34

Table 2-2 Procedures of Powering Up the DSLAM................................................................................. 36

Table 2-3 Procedures of Powering Down the DSLAM............................................................................ 36

Table 2-4 GE1AC Card Controls and LED Indication.............................................................................. 37

Table 2-5 AL5EC/AL5BC/AL5AC Card Controls and Indicators ........................................................... 39

Table 2-6 DC Power Card Controls and Indicators................................................................................... 40

Table 2-7 FAN Card Controls and LED Indication .................................................................................. 41

Table 3-1 Problems Indicated by GE1AC Card LEDs.............................................................................. 46

Table 3-2 Problems Indicated by AL5EC/AL5BC/AL5AC Card LEDs................................................... 47

Table 3-3 Problems Indicated by DC Power Card LED ........................................................................... 47

Table 3-4 Problems Indicated by FAN Card LED .................................................................................... 47

Table 3-5 List of Troubleshooting Procedures .......................................................................................... 48

VI

Preface

Scope

This document describes the MD-20. It contains:

Procedures for installing the DSLAM (chapter 1) Procedures for operating and maintaining the DSLAM (chapter 2) Procedures for troubleshooting the DSLAM (chapter 3) Expansions of abbreviations used in the manual (Abbreviations)

Audience

This document is intended for system engineers or operating personnel.

Related Documentation

For information about system description, refer to the MD-20 R3.1 System Description. For information about how to manage the DSLAM through Command Line Interface (CLI) commands, refer to the MD-20 R3.1 CLI Command Reference Guide. For information about how to manage the DSLAM through Web GUI, refer to the MD-20 R3.1 Web Configuration Tool Guide.

Documentation Conventions

The following conventions are used in this manual to emphasize information that will be of interest to the reader.

Danger — The described activity or situation might or will cause personal injury.

Warning — The described activity or situation might or will cause equipment damage.

Caution — The described activity or situation might or will cause service interruption.

Note — The information supplements the text or highlights important points.

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1 — Installation of the MD-20

1.1 Pre-Installation

1.2 Hardware Installation

1.3 Provisioning a Management IP Port

1.4 Configuration Import/Export

1.5 Firmware Update

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1.1 Pre-Installation This section provides the information users have to ware before installing the MD-20. The information includes required installation tools, safety requirements, and electrostatic discharge protection.

1.1.1 Tools and Test Equipment Requirements

To install and maintain the MD-20, you should have the tools and test equipment listed in the Table 1-1.

Table 1-1 Required Installation Tools and Materials

Item Required Purpose

Anti-static wrist strap Protect the MD-20 system from electrostatic discharge damage.

Hand tools Screw drivers for equipment removal and replacement.

Wire cutter/stripper Prepare wires for electrical connections.

Accessories and hardware kit Screws, bolts, etc., for securing the equipment on the desired location.

1.1.2 Safety Requirement

To prevent possible serious injury, do not apply power to the MD-20 system at the central office or any remote site until you’ve completed all of the installation procedures and connected it to the external facilities. Be cautious, when turning on/off the MD-20 system power.

1.1.3 Electrostatic Discharge Protection

The terminal cards contain static-sensitive components. When handling them, be sure to wear a properly grounded anti-static wrist strap to prevent the damage from electrostatic discharge. If a wrist strap is not available, hold all cards only by their edges or extractor handles. Do not touch any component or traces on the cards. For future use, store cards in original shipped antistatic bags, or in an approved static-protected bag or container.

To minimize the possible damage from electrostatic discharge, do not install the UMAP 2100 in cold, dry places where static electricity can build up. Also, when handling cards, do not touch their rear-edge connector traces. These electrical contact points should be kept free of body oils and other contaminants.

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1.2 Hardware Installation The hardware installation for the MD-20 is simple and without complex hardware setting. However, it should be installed following out the standard installation procedures. During installation, basic safety precaution should always be taken, especially, be sure to wear an antistatic wrist strap to prevent static electricity from damaging the system and injury to the operator. Handle electronic components as little as possible.

This chapter provides the MD-20 system hardware installation procedures and install samples for reference. Please perform the procedures in the suggested order.

1.2.1 Installation Overview

The installation consists of the following procedures. Each procedure will be explained in detail in the following sections:

Step 1: Mount the shelf into the desired location of a rack. Step 2: Insert the DC power card into the shelf, connect to the DC power supply, and then check

the voltage. Make sure the power switch is in OFF position before wiring the power cable and grounding (FGND). Turn the power switch in OFF position.

Step 3: Insert the fan card and the air filter into the shelf. Step 4: Insert the trunk card and line cards into the shelf. Step 5: Connect the cable between system and MDF.

After executing the previous procedures, please check the cable connection robustness before turning on the power supply. Step 6: Connect Console cable to COM port of a computer. Then run the terminal program with

the setting shown below:

Figure 1-1 Console Setting

Users can also access the DSLAM via Ethernet. The factory default out-band IP address of the DSLAM is 192.168.1.1. Users can change the IP address by using the CLI commands or Web Configuration Tool (refer to section 1.3). It’s possible to access the DSLAM with telnet on port 23.

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1.2.2 Mounting the Shelf and Rack

The position and orientation of the brackets depends on the rack used for shelf mounting. The shelf can be front-mounted in a standard channel rack (5-inch projection); and it can be shipped with the mounting brackets installed in one of three mounting positions or shipped loose (see Figure 1-2).

The mounting brackets can be rotated for use in wall mounting. Optional adhesive feet may be attached to the bottom of the shelf so that it can be placed on a desk or other smooth surface.

STANDARDFRONT MOUNT

FRONT

MOUNTINGBRACKET

MOUNTINGBRACKET

Figure 1-2 Mounting Bracket Orientation (Top View)

After the site requirements have been verified, the shelf may be installed at the specified location. When mounting the shelf, practice good safety habits. Use two or more people to secure the shelf. Relay rack mounting normally requires at least two people.

Step Action

1 Locate the shelf and obtain the appropriate shelf mounting hardware.

2 Determine and obtain the tools required for the shelf mounting hardware.

3 From the front of the relay rack, position the shelf in its relay rack mounting location.

4 Using the appropriate rack mounting hardware, secure the shelf in its relay location on both left and right side of mounting bracket (see Figure 1-3).

Note — The shelf should be empty during the shelf mounting procedures. Remove any unit in the shelf, and store them according to static-sensitive device storage procedures.

Warning — Hazardous voltages may exist on the shelf. Always practice good safety habits when wiring a live circuit or performing maintenance.

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For 23” Rack

For 19” Rack

Figure 1-3 Shelf Mounting Bracket Position for Standard Mount

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1.2.3 Power and Ground Connections

DC Power Card (DCPWR)

Figure 1-4 DC Power card

Trunk card or ADSL line cards are powered from backplane with –48V DC power. The –48V DC power of backplane comes from the DC power input of DCPWR card. The power module in the trunk or line cards will transfer the 48 V DC into the 3.3V DC for use. The DC power interface is a 5-pin terminal block with polarity signs on the front panel of DCPWR.

Power Connections

The MD-20 can be powered from two –48V DC power supply. The DC power connector is a 5P terminal block; 2P is for accommodating one DC power input and other 2P is for accommodating another DC power input. The center pin of the terminal block is FGND. The DC power should be connected to a well-fused power supply.

After completing shelf installation, please apply power to the fused power distribution panel feeding the shelf. When using a DC voltmeter, please check for proper voltage: -72V ~ -36V DC, and make sure that the polarity is correct.

Warning — Ensure that all power sources to the shelf (power distribution panel) are turned off during the connection.

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Ground Connections

This section provides the grounding rule for the MD-20. All remote system sites must be properly grounded for optimum system performance.

In Central Office:

There should be a CO GRD that is adequately grounded. If the measured resistance from the “F” terminal to CO GRD is less than 5 Ohm, then it can be assumed that the system is well grounded. If the measured resistance is larger than 5 Ohm, it is recommended to connect the “F” terminal to CO GRD using #14 or #12 AWG wire gauge conductor.

In Remote Cabinet:

The MD-20 should be grounded by connecting a #14 or #12 AWG conductor between the “F” terminal and the earth ground or main grounding bar. The resistance between the shelf and the grounding bar should be less than 25 Ohm.

Note: “F” terminal is “Frame GND” of the system (on the power connector on the front of DC power card) as shown in the figure below:

+ - F - +

Figure 1-5 MD-20 DC Power Connector

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1.2.4 Inserting a Fan Card into the Shelf

The MD-20 uses one fan card that contains two fans. To prevent the DSLAM from overheating, insert the fan card before powering up the DSLAM for operation.

If you are replacing the cooling system, refer to section 2.4 on how to replace units.

Procedures of Inserting the Fan Card into the shelf

1 Put on the antistatic wrist strap and connect it to a grounding point.

2 Locate the fan card slot of the DSLAM.

3 Install the fan card into the DSLAM by doing the following steps:

a Slide the fan card into the fan card slot.

b Turn the two screws on the faceplate of the fan card clockwise until they secure the fan card in place.

1.2.5 Inserting an Air Filter into the Shelf

The MD-20 uses one air filter.

If you are replacing the air filter, refer to section 2.4 on how to replace units.

Procedures of Inserting the Fan Unit into the shelf


2 Locate the air filter slot of the DSLAM.

3 Install the air filter into the DSLAM by doing the following steps:

a Slide the air filter into the air filter slot.

b Cover the air filter slot with the blanking plate, and turn the two screws on the plate clockwise until they secure the plate in place.

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1.2.6 Setting PoE Function (Set As Required)

If Power over Ethernet (PoE) function is needed for the system, you need to set the jumpers on the trunk (GE1AC) card before you inserting the card into the shelf.

The jumper position and setting rule are illustrated in the following figure and table.

Figure 1-6 PoE function jumper position on GE1AC card

Table 1-2 PoE function jumper setting rule

J5 jumper setting J7 jumper setting

Not support PoE

(Default setting) J51

1

J7

6 Support PoE J51

1

J7

6

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1.2.7 Inserting Trunk Card and Line Cards into the Shelf

After the shelf has been mounted on the rack, you can now start to insert the trunk card and line cards carefully.

Figure 1-7 Inserting trunk card and line cards into the shelf

Procedures of Inserting the Trunk/Line Cards into the shelf


2 Locate the trunk/line card slot of the DSLAM.

3 Before inserting a card, check the connector pins on the backplane (which is factory-installed towards the back of the shelf) with a flashlight. If any bending or deformed pin is found, please straighten it with a proper tool. If all the pins are normal, pull the card ejector away from the center of the card faceplate to the open position and then slide the card into the slot of the DSLAM half the depth of the connector. Pull out the card and check the connector pins with a flashlight again. If all the pins are normal, users can now slide the card into the slot completely.

4 Turn the two screws on the faceplate of the card clockwise until they secure the card in place.

Warning — To prevent damages to the cards, be sure to keep cards in a full parallel position during inserting or removing. When removing a card, fully release the turn screw on both sides of the card first, and then pull the ejector to the open position. Then be sure to pull out the card with both hands (each hand holding a turn screw or an ejector). Do not pull out the card with only one hand.

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1.2.8 Connecting the XDSL interfaces

The connectors on the cables for POTS and LINE interfaces are the IDC 50-pin female connector. When installing, just plug the end of a cable with connector into the POTS or LINE interface male connector on the front panel of the line card. The other side of the cable is generally tied to the MDF.

Figure 1-8 Line Interface Cable

1.2.9 Connectors on Line Cards

The xDSL line cards and xDSL modems are subscriber loops and are generally twisted-pair copper lines. A line card supports 24 port xDSL subscribers. One IDC 50-pin male connector is on the front panel of line card for POTS and subscriber Line interface respectively.

The pin assignment of Line/POTS interface is illustrated below:

12

49

50

49 47 45 43 41 39 37 35 ~ 15 13 11 9 7 5 3 1

Tip 1

Tip 2

Tip 3

Tip 4

Tip 5

Tip6

Tip7

Tip8

~ ~

Tip18

Tip19

Tip20

Tip21

Tip 22

Tip 23

Tip 24

X

50 48 46 44 42 40 38 36 ~ 16 14 12 10 8 6 4 2

Ring 1

Ring 2

Ring3

Ring 4

Ring 5

Ring6

Ring7

Ring8

~ ~

Ring18

Ring19

Ring20

Ring21

Ring 22

Ring 23

Ring24

X

Figure 1-9 Pin Assignment of LINE and POTS Interfaces

Note — Tip 1 is for Port 1.

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1.2.10 Connecting the GBE trunk interface

The system provides two types of trunk interfaces (two ports for each type): electrical (RJ-45) and optical (mini-GBIC) interfaces. When both electrical and optical ports are connected, the system will automatically choose the optical to be the trunk port. Thus if you want the data to be transmitted through electrical port, the optical port must be un-connected.

RJ-45 Electrical Trunk Port

The pin assignment of RJ-45 connector on the trunk port is shown in the following figure and table.

1, 2 3, 6 4, 5 7, 8

T/RX +, T/RX -

T/RX +, T/RX -

T/RX +, T/RX -

T/RX +, T/RX -

Mini-GBIC (SFP) Trunk Port

Prepare a proper SFP module and install it into the optical trunk port. Then you can connect fiber optics cabling that uses LC connectors or SC connectors (with the use of an optional SC-to-LC adapter) to the fiber optics connector on the trunk port.

Fiber optics cable with LC duplex connector Connect the optical fiber to the trunk port

Figure 1-10 Connecting optical fiber to the trunk port

Note — Please observe the proper connecting terminals for transmitting cable to TX LC-type receptacle, and receiving cable to RX LC-type receptacle on the trunk card.

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1.2.11 Ethernet Port (MGMT) on Trunk Card

The trunk card provides one RJ45 Jack (E-NET) on the front panel for Ethernet interface connection. The detailed pin assignment is shown in the following figure and table.

1 2 3 6 other

TX + TX - RX + RX - Bob Smith Termination

Figure 1-11 RJ45 Ethernet Port (MGMT)

To connect the Ethernet interface to PC, the Ethernet crossover cable is required. The detailed pin assignment is shown below.

Brown 1

Green/White 8

Green 7

Blue/White 6

Blue 5

Orange/White 4

Orange 3

Brown/White 2

8 Green/White

1 Orange

2 Blue/White

3 Brown

4 Orange/White

5 Blue

6 Brown/White

7 Green

Name Pin Pin Name

Tx+ 1 3 Rx+

Tx- 2 6 Rx-

Rx+ 3 1 Tx+

Rx- 6 2 Tx-

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1.2.12 Console Port (COM) on Trunk Card

The Console interface (COM) on the front panel of trunk card is the main control interface of the MD-20. The RJ45 connector pin assignment is illustrated below:

3 4 6 other

TX RX GND unused

Figure 1-12 RJ45 Console Port (COM)

To connect the host PC to the console port, a console cable with RJ45 plug to RS232 DB9 female connector is required. The pin assignment of the console cable is shown below:

1

2RD

3TD

4

5DGND

6

7

8

9

1

8

7

6 (DGND)

5

4 (RD)

3 (TD)

2

Figure 1-13 Pin Assignment of Console Interface

In Figure 1-13, the RD/TD/DGND of the RJ45 connector on the cable is connected to the RX/TX/GND of the console port on the trunk card (see Figure 1-12); the RD/TD/DGND of the DB9 connector on the cable is connected to the RD/TD/SG of the PC COM port with RS232 DB9 male connector.

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1.2.13 Housekeeping and Alarm Contact Output Interface on DCPWR

The MD-20 has four housekeeping inputs and one alarm contact output on the front panel of DC Power Card (DCPWR) and both of them use the common RJ45 jack (HK & ALM).

Generally, housekeeping contacts can connect to environment-sense-controlled switch to indicate the operation environment condition.

For example, the open-door indication, the alarm contact output is normal open contact with approximately 3.3V DC power in serial-connection fashion. It can be connected to 3.3V-controlled relay to indicate major and minor alarm status.

The pin assignment of housekeeping and alarm contact output interface is illustrated below:

10 9 8 7 6 5 4 3 2 1 MAJOUTHK1INHK1COMHK2IN

HK3COMHK4INHK4COMMAJCOM

12345678

DCPWR HK2COMHK3IN

910

Figure 1-14 Pin assignment of Housekeeping and Alarm Contact Output

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1.3 Provisioning a Management IP port This section describes how to use CLI commands and Web Configuration Tool to provision an IP port for the DSLAM.

Before changing the system IP address, you can connect to the DSLAM via console port (COM) and type in the following CLI command to check current setting:

show management all /*Display all system management port IP setting*/

To provision an IP port:

In CLI:

management gbe <ipv4 address> [netmask <netmask>] /*Set in-band management port IP setting*/

management mgmt <ipv4 address> [netmask <netmask>] /*Set out-band management port IP setting*/

management default-route <ipv4 address> /*Set default route IP address*/

runningcfg write /*Save new setting to NVRAM*/

In Web:

On the menu tree, click on System ---> NT-Trunk Setup. The NT-Trunk Setup page is displayed.

Type in new IP setting in the GBE (In Band) section for in-band IP provisioning.

Type in new IP setting in the MGMT (Out Band) section for out-band IP provisioning.

Then click on Modify button to submit the modification.

To save new setting to NVRAM:

On the menu tree, click on Maintenance ---> Data Base. The Database Configuration page is displayed. Select Export radio button, and then in the Running Configuration drop-down list select Write to NVRAM.

Note — For both CLI and Web Configuration Tool, the default login username and password are:

admin/admin.

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1.4 Configuration Import/Export The MD-20 provides the configuration preservation feature that the configuration database is stored in NV-RAM. In addition to the configuration preservation feature, the MD-20 also provides the configuration export/import feature.

Figure 1-15 DB Configuration Concept

In CLI:

Suppose that TFTP Server IP address is 192.168.7.1 and configuration file name is ‘testcfg’:

1. Import: import file from TFTP Server to the Download Config (Remote Config).

Ex:

enable

configure

remotecfg login 192.168.7.1 get testcfg

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2. Write Download Config (Remote Config) to the NVRAM. (Figure 1-15, Label A)

Ex:

enable

configure

remotecfg write

3. Remove Download Config (Remote Config) to the Running config (Figure 1-15, Label B)

Ex:

enable

configure

remotecfg load

4. Export: export file from Running config to the TFTP server.

Ex:

enable

configure

runningcfg login 192.168.7.1 put testcfg

5. Remove Running config to the NVRAM (Figure 1-15, Label C)

Ex:

enable

configure

runningcfg write

6. Remove NVRAM DATA to the Running config (Figure 1-15, Label D)

Ex:

enable

configure

runningcfg load

7. Set system configuration to factory default value.

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Ex:

enable

configure

restore-factory

8. Display Running config

Ex:

enable

show runningcfg

In Web:

On the menu tree, click on Maintenance --- > Data Base. The Database Configuration page is displayed. Select the database configuration action you want to perform.

(A) Import File (Write Download Config To NVRAM):

Type in the TFTP Server IP address and the name of the file you want to download. Then click on

Get File button.

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TFTP Login & Get File in progress:

Write downloaded Config to NVRAM in progress:

Write to memory successfully:

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Fail to Get File:

(B) Import File (Load Remote Config to Running Config)

Type in the TFTP Server IP address and the name of the file you want to download. Then click on

Get File button.

TFTP Login & Get File in progress:

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Write Downloaded File to Running Conifg in Progress:

Write to Running Conifg successfully:

Fail to Get File:

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(C) Export File (Put Running Config to Remote TFTP Server)

Type in the TFTP Server IP address and the name of the file you want to export. Then click on Put File button.

TFTP put file in progress:

TFTP put file successfully:

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TFTP put file fail:

(D) Write Running Config to NVRAM

Click on Write_Running button to write running configuration to NVRAM.

Write running config to NVRAM successfully:

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(E) Load NVRAM to Running Config

Click on LOAD_NVRAM button to load configuration from NVRAM to Running Config.

Load configuration from NVRAM to Running Config successfully:

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(F) Restore Factory Default

Click on Factory_Default button to restore factory default configuration.

Load default configuration to NVRAM successfully.

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1.5 Firmware Update

In CLI:

If you want to update firmware code, you must get image file from FTP Server.

Suppose that FTP Server IP address is 192.168.7.1 and the image filename is ‘vmlinux’.

Ex:

enable

configure

firmware login 192.168.7.1 username abc password 123

firmware get vmlinux

(Get filename from FTP Server need several minutes,you can get staus from command ‘show firmware status’in Enable execution mode.

When status return “Load firmware image success!”,you can begin to write Flash ROM. )

firmware write

(Write image to Flash ROM need several minutes,you can get staus from command ‘show firmware status’in Enable execution mode.

When status return “Write firmware image success!”,you can restart to run new firmware image. )

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In Web:

On the menu tree, click on Maintenance --- > Firmware Update. The Firmware Update page is displayed:

Figure 1-16 Firmware update no action

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Figure 1-17 Firmware update FTP Get Image Success

Figure 1-18 Firmware update FLASH Write Image In Progress

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Figure 1-19 Firmware update FLASH Write Success

1. FTP Get image file:

(a) Click FTP GET radio button.

(b) Input Remote Server IP, Server User name, Server password and Filename in textbox.

(c) Submit button: FTP GET button.

(d) Wait some time, until FTP Get Image Success

2. Flash Write:

(a) Once FTP Get Image Success

(b) Click Flash Write radio button.

(c) Submit button: Write Flash button.

(d) Take some time system will reload the screen to Write Image In Progress state

(e) Until FLASH Write Success

3. Partition select:

In the Partition Select drop-down list, if change to the non-active partition, the system will restart immediately.

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2 — Operating and Maintaining the MD-20

2.1 Maintenance Requirement

2.2 Powering the DSLAM Up or Down

2.3 Controls and LED Indication

2.4 Replacing Units

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2 — Operating and Maintaining the RU

2.1 Maintenance requirement

2.1.1 Tools and Equipment Requirements

Table 2-1 lists required tools and test equipment for the MD-20 system maintenance.

Table 2-1 Required Installation Tools and Materials

Item Required Purpose

Anti-static wrist strap Protect the system from electrostatic discharge damage

Hand tool Screwdrivers for equipment removal and replacement

Wire cutter/stripper Prepare wires for electrical connections

Wire-wrap gun and bit Removing and replacing the system interconnection wires

Wires System interconnections to external facilities

VF transmission and signaling test sets

Testing faulty POTS

Fuse and alarm panel For protection and simplifying troubleshooting

2.1.2 System Spares

Always keep spares of trunk card or ADSL line cards for the DSLAM at each central office for replacement purposes. During the system trouble-shooting procedures, certain cards at the central office and/or remote site will be required to be replaced.

2.1.3 Dispatching Maintenance Personnel

Some procedures in this manual involve end-to-end system testing, for which technicians are needed at each remote site. The remote MD-20 system sites are normally unattended, however, technicians should be dispatched when needed. The MD-20 system maintenance efforts and monitor the system for alarms during those on-site operations.

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2.1.4 Electrostatic Discharge Protection

The MD-20 system contains static-sensitive components. Be sure to wear a properly grounded antistatic wrist strap when handling them. Also, when removing and replacing a card, hold it either by its front ejector handle or by its edges.

Do not touch its rear connector contacts, which must remain free of contaminants.

2.1.5 Routine Maintenance

Always monitor the MD-20 system performance at the central office/ remote sites using the SNMP. It allows user to view the current system status, alarm information and to take the necessary corrective action if a problem is reported.

Also keep each MD-20 system site free of dust and other pollutant that could affect system performance. In addition, be sure to maintain the environment conditions at the central office and at

each remote system site. The ideal operating temperature is about 20°C. The following is the acceptable operating condition range:

-40°C to 65°C and 0% to 95% humidity at 35°C

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2.2 Powering the DSLAM Up or Down This section describes how to power up the DSLAM and how to power down the DSLAM.

Table 2-2 Procedures of Powering Up the DSLAM

Step Action


2 Ensure that the DSLAM is securely installed.

3 Ensure that the DSLAM ground strap is connected to a suitable ground point.

4 Ensure that –48 Vdc power is being supplied to the DSLAM.

5 Ensure that the fan unit is installed.

6 Ensure that the POTS lines, subscriber lines, and alarm equipment are connected.

7 Slide the power switch on the DC power card faceplate to ON.

8 Wait for a minute, and then check the LEDs on the DSLAM. If the LEDs show some problem, refer to section 3.2 for information on how to resolve problems indicated through LEDs.

Table 2-3 Procedures of Powering Down the DSLAM

Step Action

Caution: Powering down the DSLAM stops DSL service to subscribers. POTS service is not affected.


2 Slide the power switch on the DC power card faceplate to Off.

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2.3 Controls and LED Indication The MD-20 has simple controls and indicators on its front panel. The indicators show the current operating states of various system elements and serve as maintenance aids for local technicians at each site. The remaining controls on the cards are also provided for local system testing and maintenance.

2.3.1 GE1AC Card

Table 2-4 GE1AC Card Controls and LED Indication

GE1AC Card Appearance

LED Color Indication / Condition

Yellow At Power on phase

Red Self-test fail

SYS

Green Normal Operation

Yellow At power on phase

Red

Red – Flash

Major alarm set

Major and Minor alarm set

Yellow Minor alarm set

ALM

Green Normal operation

Green Fiber link GBE1/GBE2

Off No fiber link

GBE1- Speed GBE2- Speed

(LED B on RJ-45)

Orange - On

Off

100 / 1000 Mbps

10 Mbps

GBE1-Link/Act GBE2-Link/Act

(LED A on RJ-45)

Green

Off

Green - Flash

Link established

No link

Data activity

MGMT- Speed

(LED B on RJ-45)

Green - On

Off

100 Mbps

10 Mbps

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MGMT-Link/Act

(LED A on RJ-45)

Orange

Off

Orange - Flash

Link established

No link

Data activity

Interface Description

MGMT Ethernet Port to connect to LAN for providing system out-band EMS/Telnet control interface, such as system monitor, control or software upgrade.

COM RS-232 port to connect to the terminal for monitoring and controlling the trunk card.

Button Description

ACO For Alarm Cut Off service.

RST An embedded hardware button for hardware resetting.

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2.3.2 AL5EC/AL5BC/AL5AC Card

Table 2-5 AL5EC/AL5BC/AL5AC Card Controls and Indicators

AL5EC Card Appearance

AL5BC Card Appearance

AL5AC Card Appearance

LED Color Indication / Condition Green In service

Red When power on – Self test failed (wait check)

Yellow

Yellow – Flash

Set card OOS

When power on – Card equipped signal blocked

Performing diagnostic (self test)

UNIT

Yellow When power on – Card equipped signal blocked

Green

Green – Flash

Port active

Port training or Port handshaking

Red Loss of Signal

Yellow

Yellow – Flash

Local alarm except LOS or remote alarm

Loopback active or perform loop diagnostic

LINK

OFF Port out of service

Interface Description POTS POTS signal connector. (50-pin dual row header)

LINE ADSL signal connector. (50-pin dual row header)

Button Description

Service ON/OFF

To set the service state ON/OFF

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2.3.3 DC Power Card

Table 2-6 DC Power Card Controls and Indicators

DC Power Card Appearance

LED Description

ACT Indicates the MD-20 system is power ON/OFF.

Green - Power on

OFF - Power off

Control Description

Switch To turn ON/OFF the dual A+B 48V DC power.

HK & ALM (RJ45 jack) System housekeeping and alarm contact output terminal.

DC 48V IN Dual A+B 48V DC Power input terminal.

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2.3.4 FAN Card

Table 2-7 FAN Card Controls and LED Indication

Card Appearance LED Color Description

Green Normal Operation ACT

Red Fan failure alarm

Control Description

ESD Grounding Socket After the shelf being rack-mounted, for protecting the system from electrostatic discharges damage. (For Anti-static wrist strap usage)

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2.4 Replacing Units This section provides procedures on how to:

replace the GE1AC (replace as required) replace an XDSL line card (replace as required) replace the air filter (replace every three months) replace the fan card (replace as required)

Procedure 2-1 Replace the GE1AC

Danger — Never look at the end of a live fiber optics cable. Never look at the fiber optic connectors of an installed card that supports fiber optics. Laser emissions can damage your eyes.

Warning 1 — Electronic circuitry is very susceptible to damage by ESD. Be sure to use ESD precautions when you handle a card.

Warning 2 — To prevent damages to the cards, be sure to keep cards in a full parallel position during inserting or removing. When removing a card, fully release the turn screw on both sides of the card first, and then pull the ejector to the open position. Then be sure to pull out the card with both hands (each hand holding a turn screw or an ejector). Do not pull out the card by only one hand.

Caution — Replacing the GE1AC disrupts DSL services for all subscribers currently connected to the DSLAM. POTS service is not affected.


2 Locate slot 0 of the DSLAM.

3 Disconnect the fiber optics link (if any) and LAN cables gently from the current GE1AC.

4 Disconnect any connections made to the external alarms connector on the current GE1AC by gently pulling away from the GE1AC.

5 Remove the current GBE from the DSLAM by doing the following steps:

a Pull the card ejectors away from the GE1AC faceplate to the open position. b Pull the GE1AC out of the DSLAM. c Place the GE1AC on an antistatic mat.

6 Insert the replacement GE1AC into the DSLAM by doing the following steps:

a Pull the card ejectors away from the GE1AC faceplate to the open position. b Slide the GE1AC into slot 0 of the DSLAM. c Push the card ejectors toward the GE1AC faceplate until the spring clips lock the card in

place.

7 Reconnect the alarm equipment to the DSLAM

8 Reconnect the fiber optics link and LAN cables to the DSLAM

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Procedure 2-2 Replace an xDSL Line Card

Warning 1 — Electronic circuitry is very susceptible to damage by ESD. Be sure to use ESD precautions when you handle a card.

Warning 2 — To prevent damages to the cards, be sure to keep cards in a full parallel position during inserting or removing. When removing a card, fully release the turn screw on both sides of the card first, and then pull the ejector to the open position. Then be sure to pull out the card with both hands (each hand holding a turn screw or an ejector). Do not pull out the card by only one hand.

Caution — Replacing an xDSL line card disrupts xDSL (and POTS service if it is an ADSL card) for the subscribers currently connected the line card.


2 Locate the slot that has the xDSL line card to be replaced.

3 Do the following steps to disconnect the POTS (for ADSL card) and subscriber lines from the line card that is to be replaced:

a Disconnect the cable ties that hold the POTS bundle in place. b Open the latch of the POTS connector of the ADSL line card to loosen the 50-pin connector

of the POTS bundle. c Pull the 50-pin connector out of the POTS connector. d Disconnect the cable ties that hold the xDSL subscriber bundle in place. e Open the latch of the subscriber line connector of the xDSL line card to loosen the 50-pin

connector of the subscriber bundle. f Pull the 50-pin connector of the subscriber bundle out of the subscriber line connector.

4 Remove the xDSL line card from the DSLAM by doing the following steps: a Push the Service ON/OFF button on the card faceplate to OFF position to isolate the

connection to the backplane. (The other way is to issue the service –off command.)

b Turn the two screws on both sides of the card faceplate counterclockwise until they loosen the connection of the line card to the DSLAM.

c Pull the card ejectors away from the faceplate of the line card to the open position.

d Pull the line card out of the DSLAM, and place it on the antistatic mat.

5 Insert the replacement xDSL line card into the DSLAM by doing the following steps:

a Pull the card ejectors away from the faceplate of the replacement line card to the open position.

b Slide the replacement line card into the empty slot of the DSLAM.

c Push the card ejectors toward the faceplate of the replacement line card until the spring clips lock the card in place.

6 Connect the subscriber lines to the replacement xDSL line card by doing the following steps:

a Align the 50-pin connector of the subscriber bundle with the subscriber line connector on the replacement xDSL line card.

b Insert the 50-pin connector of the subscriber bundle into the subscriber line connector.

c Push the latch of the subscriber line connector of the xDSL line card to secure the connection.

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7 Connect the POTS lines to the replacement ADSL line card by doing the following steps:

a Align the 50-pin connector of the POTS bundle with the POTS connector on the replacement ADSL line card.

b Insert the 50-pin connector of the POTS bundle into the POTS connector.

c Push the latch of the POTS connector of the ADSL line card to secure the connection.

Procedure 2-3 Replace the Air Filter

The air filter should be replaced every three months.

The operator does not need to power down the DSLAM to replace the air filter.


2 Remove the air filter to be replaced by doing the following steps:

a Turn the two screws on the blanking plate that covers the air filter slot counterclockwise until they loosen the plate from the DSLAM.

b Pull the air filter out of the DSLAM.

3 Install the replacement air filter into the DSLAM by doing the following steps:

a Slide the air filter into the air filter slot of the DSLAM.

b Cover the air filter slot with the blanking plate, and turn the two screws on the plate clockwise until they secure the plate in place.

Procedure 2-4 Replace the Fan Card

Danger — When removing the fan unit, wait for a moment for the fan blades to come to a complete stop before fully extracting the fan unit.


2 Remove the fan card to be replaced by doing the following steps:

a Turn the two screws on the faceplate of the fan card counterclockwise until they loosen the connection of the fan card to the DSLAM.

b Pull the fan card out about 2 inches and wait for a moment for the fan blades to stop completely.

c Pull the fan card completely out of the DSLAM, and set it aside.

3 Install the replacement fan card into the DSLAM by doing he following steps:

a Slide the replacement fan card into the fan card slot of the DSLAM.

b Turn the two screws on the faceplate of the fan card clockwise until they secure the fan card in place.

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3 — Troubleshooting the MD-20

3.1 Introduction to Troubleshooting

3.2 Resolving Problems Indicated Through LEDs

3.3 Resolving Problems Indicated Through Alarms

3.4 Procedures for Troubleshooting the MD-20

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3 — Troubleshooting the RU

3.1 Introduction to Troubleshooting This chapter describes instructions for the MD-20 system problems. These procedures may require the presence of technicians at remote MD-20 system sites and plus an operator at PC to monitor system alarms by console or EMS during maintenance.

3.2 Resolving Problems Indicated Through LEDs This section describes what to do to solve problems indicated by LEDs on the:

GE1AC Card

AL5EC/AL5BC/AL5AC Card

DC Power Card

FAN Card

Table 3-1 Problems Indicated by GE1AC Card LEDs

LED Activity Problem Action

Not lit even though DSLAM is powered up

There is a power up problem with the GE1AC.

Troubleshoot the GE1AC for power up problems; see section 3.4.

SYS

Red Self-test failed. There is a functional problem with the GE1AC.

Replace the GE1AC.

Red Major alarm set See section 3.3.

Red-Flash Major and Minor alarm set See section 3.3.

ALM

Yellow Minor alarm set See section 3.3.

GBE1/GBE2

(If optical interface is connected for trunk)


No link Troubleshoot the DSLAM for fiber optics problems; see section 3.4.

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Table 3-2 Problems Indicated by AL5EC/AL5BC/AL5AC Card LEDs



There is a power up problem with the AL5xC.

Troubleshoot the AL5xC for power up problems; see section 3.4.

UNIT

Red Self-testing failure during initialization

There is a functional problem with the AL5xC. Replace the AL5xC.

Red Loss of Signal (LOS) Troubleshoot the AL5xC for ADSL service problems; see section 3.4.

LINK

Yellow Local alarm except LOS or remote alarm

Troubleshoot the AL5xC for ADSL service problems; see section 3.4.

Table 3-3 Problems Indicated by DC Power Card LED


ACT Not lit even though the power switch is turned on.

There is a functional problem with the DC Power Card

Check Power card fuse or Replace the DC power card.

Table 3-4 Problems Indicated by FAN Card LED


ACT Not lit even though DSLAM is powered up

There is a power up problem with the fan unit.

Troubleshoot the fan unit for power up problems; see section 3.4.

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3.3 Resolving Problems Indicated Through Alarms

Alarms of the system are viewed through CLI commands, Web or EMS.

If an alarm indicates a problem, refer to section 3.4 for troubleshooting procedures.

3.4 Procedures for Troubleshooting the MD-20 When following a troubleshooting procedure, start at the first step of the procedure; if the first step does not solve the problem, proceed to the next step; keep going through the steps until the problem is solved. Use the following table to identify the appropriate procedure for troubleshooting the listed problems.

Table 3-5 List of Troubleshooting Procedures

Type of problem Procedure Number

GE1AC power up problems 3-1 AL5EC/AL5BC/AL5AC power up problems 3-2 Fan unit power up problems 3-3 Fiber optics problems 3-4 xDSL service problems (POTS service is ok) 3-5 POTS service problems (ADSL service is ok) 3-6 Subscriber service problems (no POTS and ADSL service) 3-7

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Procedure 3-1 Troubleshoot GE1AC Power Up Problems Problem indication:

• the SYS LED on the GE1AC is not lit even though the DSLAM is powered up

• alarm that indicates a GE1AC power up problem

• subscribers connected to the DSLAM do not have DSL service; POTS service is ok

1 Check that the power switch on the DC power card faceplate is turned on.

2 Check that the GE1AC is completely inserted in its slot.

3 Check that the DC power card is connected to the DSLAM, and that power is present on the DC power card with correct polarity.

4 Replace the GE1AC.

5 Contact your provider.

Procedure 3-2 Troubleshoot AL5EC/AL5BC/AL5AC Power Up Problems Problem indication:

• the UNIT LED on the AL5xC is not lit even though the DSLAM is powered up

• alarm that indicates a AL5xC problem

• subscribers connected to the AL5xC do not have DSL service; POTS service is ok

1 Check that the AL5xC is completely inserted in its slot.

2 Remove the problem AL5xC and install it in another slot in the DSLAM.

a If the problem AL5xC powers up, then the problem is with the slot that the problem AL5xC was in, and you should contact your provider.

b If the problem AL5xC still does not power up, then the problem is with the AL5xC rather than with the slot.

3 Replace the AL5xC.


Procedure 3-3 Troubleshoot Fan Unit Power Up Problems Problem indication:

• the ACT LED on the fan unit is not lit even though the DSLAM is powered up

• alarm that indicates a fan problem

1 Check that the fan unit is completely inserted in its slot.

2 Replace the fan unit.


Procedure 3-4 Troubleshoot Fiber Optics Problems

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Problem indication:

• the GBE1/GBE2 LED on the GE1AC card is not lit (could be due to signal power detected by the fiber optical receiver being below the minimum power threshold)

• alarm that indicates loss of signal

• subscribers connected to the DSLAM do not have DSL service; POTS service is ok

1 Check the connection of the fiber optics link at the GE1AC card. Check that the connections are secure and that the transmit and receive connections are not reversed.

2 Disconnect the fiber optics link from the dual fiber optics connector of the GE1AC card and do a physical loopback at the GE1AC card.

a If the GBE1/GBE2 LED on the GE1AC card turns green, the problem is with the fiber optics link.

b If the GBE1/GBE2 LED on the GE1AC card does not turn green, the problem is with the GE1AC card. Follow Procedure 3-1 to troubleshoot the GE1AC card.

3 If the problem is with the fiber optics cabling, clean or replace as appropriate.


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Procedure 3-5 Troubleshoot xDSL Service Problems Problem indication: No xDSL service to the affected subscribers (POTS service is ok).

1 If all subscribers connected to the DSLAM are affected, and the ACT LED on the DC power cardis not lit, check the power switch on the DC power card faceplate:

• if the power switch is set to the Off position, power up the DSLAM by sliding the power switch to the On position

• if the power switch is set to the On position, troubleshoot the DSLAM for DC power card functional problem

2 If all subscribers are affected, check the SYS LED on the trunk card; if it is red, replace the trunk card.

3 Check the GBE1/GBE2 LED (if optical interface is connected for trunk port); if it is red, follow Procedure 3-4 to troubleshoot the DSLAM for fiber optics problems.

4 If only some subscribers are affected, identify the AL5xC(s) that are causing problems.

i Check that the subscribers are connected to a xDSL line card in the appropriate slot.

ii Check the UNIT LED on the xDSL line card:

• if the UNIT LED is red, replace the line card

• if the UNIT LED is not lit even though the DSLAM is powered up, follow Procedure 3-2 to troubleshoot the DSLAM for AL5xC power up problems

iii Check the xDSL port is enabled or not. If yes, do xDSL line loop-back test


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Procedure 3-6 Troubleshoot POTS Service Problems Problem indication: No POTS service to the affected subscribers (ADSL service is ok).

1 Check the connection of the POTS lines at the POTS connector for the AL5xC(s).

2 Use a bridging connector to couple the POTS and subscriber lines. If this solves the problem, replace the AL5xC.

3 Check the condition of the POTS lines and connectors.

Procedure 3-7 Subscriber Service Problems Problem indication: No POTS and ADSL service to the affected subscribers.

1 Check the connection of the subscriber lines and POTS lines at the subscriber line connector for AL5xC (s) for subscribers that do not have POTS and ADSL service.

If this step results in POTS service to the affected subscribers but there is still no ADSL service to them, follow Procedure 3-5 to troubleshoot ADSL service problems.

If this step results in ADSL service to the affected subscribers but there is still no POTS service to them, follow Procedure 3-6 to troubleshoot POTS service problems.

2 Use a bridging connector to couple the POTS and subscriber lines. If this results in POTS service to the affected subscribers, contact your provider.

3 Check the condition of the subscriber lines and connectors.

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Abbreviations

ADSL asymmetrical digital subscriber line AWG American wire gauge ATM asynchronous transfer mode CLI command line interface DSL digital subscriber line EMC electromagnetic compatibility EMI electromagnetic immunity EMS element management system ETSI European Telecommunications Standards Institute Mbps megabit per second LED light emitting diode POTS plain old telephone service PSTN public switched telephone network SNMP simple network management protocol

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md-20 mini dslam - ctc union technologies co.,ltd

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