1 mdp-[ ]mb-[ ] equipment description 44885amdp

8/3/2019 1 Mdp-[ ]Mb-[ ] Equipment Description 44885amdp

1/117

ROI-S04488-05AE CONTENTSDecember, 2003

CL-1

7-38 GHz 4/8/17/34 MB

DIGITAL MICROWAVE RADIO SYSTEM

PASOLINK

MDP-[ ]MB-[ ] EQUIPMENT DESCRIPTION

CONTENTS

TITLE PAGE

1 GENERAL 1-1

1.1 Equipment Composition 1-3

1.2 Equipment Performance 1-7

2 FUNCTIONAL OPERATION 2-1

2.1 Transmit Line Equalization 2-17

2.1.1 Bipolar-to-Unipolar Code Conversion 2-17

2.1.2 Multiplexing 2-17

2.1.3 Parallel-to-Serial Conversion 2-17

2.2 Transmit Digital Processing 2-17

2.2.1 Multiplexing 2-17

2.2.2 Scrambling 2-18

2.2.3 Parity Check 2-18

2.3 Modulation 2-18

2.3.1 Differential Encoding 2-18

2.3.2 4-Phase Shift Keying Modulation 2-19

2.3.3 Orderwire Signal Modulation 2-20

2.4 Demodulation 2-202.4.1 EOW and Alarm Signal Demodulation 2-20

2.4.2 Main Signal Demodulation 2-21

2.4.3 Differential Decoding 2-21

2.5 Receive Digital Processing 2-22

2.5.1 Frame Synchronization 2-22

2.5.2 Descrambling 2-22

2.5.3 Demultiplexing 2-22


2/117

CONTENTS ROI-S04488

CL-2

TITLE PAGE

2.6 Receive Line Equalization 2-22

2.6.1 Demultiplexing 2-22

2.6.2 Unipolar-to-Bipolar Code Conversion 2-22

2.7 Analog Service Channel Signal Transmission(Optional) 2-23

2.7.1 ASC Transmit Side 2-23

2.7.2 ASC Receive Side 2-23

2.8 9.6 K Digital Service Channel Transmission 2-23

2.8.1 DSC Transmit Side 2-24

2.8.2 DSC Receive Side 2-24

2.9 Alarm Signal Transmission 2-24

2.10 Wayside Signal Transmission (Optional) 2-24

2.10.1 WS Transmit Side 2-24

2.10.2 WS Receive Side 2-24

2.11 64 K Digital Service Channel Transmission 2-25

2.11.1 Service Channel Transmission of G.703Codirectional 2-25

2.11.2 Service Channel Transmission of V.11 2-252.12 LAN Signal Transmission 2-26

2.12.1 Transmit Side 2-26

2.12.2 Receive Side 2-26

2.13 Alarm and Control Functions 2-26

3 OPERATION 3-1

3.1 Interface Terminals and Jacks 3-1

3.2 Controls, Indicators and Test Jacks 3-20

3.2.1 75 ohms/120 ohms Impedance Switch 3-25

3.3 Equipment Start-up and Shut-down 3-28

3.3.1 Start-up 3-28

3.3.2 Shut-down 3-29

3.4 Equipment Setting and Monitoring 3-30

3.4.1 Controls of IDU 3-31

3.4.2 Alarm and Status Monitoring of IDU and ODU 3-53

3.4.3 Monitoring the ODU 3-61


3/117

ROI-S04488 CONTENTS

CL-3

TITLE PAGE

4 MAINTENANCE 4-1

4.1 Precautions 4-1

4.2 Maintenance Condition Setting 4-3

4.3 Test Equipment and Accessories 4-12

4.4 Periodic Maintenance 4-12

4.5 Corrective Maintenance 4-13

4.5.1 Fault Isolation 4-13

4.5.2 Replacement 4-15

4.5.3 Alignment 4-19
http://4488_mdp.pdf/http://4488_mdp.pdf/http://4488_mdp.pdf/http://4488_mdp.pdf/http://4488_mdp.pdf/http://4488_mdp.pdf/http://4488_mdp.pdf/http://4488_mdp.pdf/http://4488_mdp.pdf/http://4488_mdp.pdf/http://4488_mdp.pdf/http://4488_mdp.pdf/http://4488_mdp.pdf/http://4488_mdp.pdf/http://4488_mdp.pdf/http://4488_mdp.pdf/http://4488_mdp.pdf/http://4488_mdp.pdf/


4/117

CONTENTS ROI-S04488

CL-44 pages

(This page is intentionally left blank.)
http://4488_mdp.pdf/


5/117

ROI-S04488 GENERAL

1-1

1. GENERAL

This section provides information on the equipment composition andequipment performance of the MDP-( )MB-( ) Modulator-Demodulator(Indoor Unit (IDU)) equipment. This manual is applied to the F/W version2.xx.

The IDU has the following two types for each 1+0 and 1+1 systems.

Fixed bit rate type (for 4 2MB and optional 2 10/100 BASE-T(X))

Free bit rate type (for 2/4/8/16 2MB and optional 2 10/100BASE-T(X))

Front view of the IDUs are shown in Fig. 1-1 and Fig. 1-2.

Fig. 1-1 Front View of the IDUs in 1+0 System

TRAFFIC IN/OUT (CH1 to CH8) ALM/AUX ALM OW/DSC/ASC LA PORTNMS/RA

TRAFFIC IN/OUT (CH9 to CH16)

NMS LANWS/SC LANPORT1 PORT2

100M 100MCALL

RESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+


NMS LANSC LANPORT1 PORT2

100M 100MCALL

RESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+



NMS LANWS/SC LAN

CALLRESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+


NMS LANSC LAN

CALLRESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+

(a) 4 2MB Fix Rate Composition

(b) 4 2MB Fix Rate with LAN Interface Composition

(c) 2/4/8/16 2MB Free Rate Composition

(d) 2/4/8/16 2MB Free Rate with LAN Interface Composition

IFIN/OUT

IFIN/OUT

IFIN/OUT

IFIN/OUT


6/117


7/117

ROI-S04488 GENERAL

1-3

1.1 Equipment Composition

The equipment composition is shown in Fig. 1-3 and Fig. 1-4.

Fig. 1-3 Component Module Arrangement for the IDU in 1+0 System (1/2)

TOP LAYER

BOTTOM LAYER

1 4

3

9

5

6

10

2

78

Note: The module 8 can not be mounted if module 5 and/or 7 aremounted.


8/117

GENERAL ROI-S04488

1-4

Note: : Mounted

: Optional - : Not applicable


No. MODULE NAME

MDP-[ ]MB-[ ] (IDU)

REMARKSH0091

H0091A 4x2MB H0091F 2/4/8/16x2MB

1

H0092A MAIN BOARD

H0092D MAIN BOARD

2 H0093A FRONT BOARD1

3

H0095A FRONT BOARD2 75/120 ohms

H0095D FRONT BOARD2 75/120 ohms

4 X0581A DC-DC CONV

5

H0174A ASC INTFC VF x 2 CH

H0175A DSC INTFC RS232/RS422 x 2 CH

H0176A ALM INTFC Cluster ALM x 2CH

6

H0172A 64K INTFC G.703

H0173A 64K INTFC V11

7 H0171A WS INTFC 2 MB x 1CH

8 H0177A SC LAN INTFC 2 MB/64Kbps

9 H0098B LAN INTFC 10/100BASE-T(X) x 2CH

10

G5440B PM CARD Serial

G8896B PM CARD Ether


9/117

ROI-S04488 GENERAL

1-5


SW UNIT (U1)

MD Unit (U2/U3)

1

2

9

107

8

Note: The module 12 can not be mounted if module 8 and/or 9are mounted.

3

4

56

11

U2 (MD Unit)

U3 (MD Unit)

U1 (SW Unit)

IDU

12


10/117

GENERAL ROI-S04488

1-6

Note: : Mounted

: Optional - : Not applicable


No. UNIT/MODULE NAME

MDP-[ ]MB-[ ] (IDU)

REMARKSH0161

H0161A 4x2MB H0161F 2/4/8/16x2MB

U1

H0164A SW UNIT

H0164C SW UNIT

U2

H0163A MD UNIT

H0163D MD UNIT

U3

H0163A MD UNIT

H0163D MD UNIT

1

H0092H MAIN BOARD

H0092K MAIN BOARD

2 H0093B FRONT BOARD1

3 X0581A DC-DC CONV

4

H0094B SW BOARD

H0094D SW BOARD

5 H0093C FRONT BOARD1

6

H0095A FRONT BOARD2 75/120 ohms

H0095D FRONT BOARD2 75/120 ohms

7

H0172A 64K INTFC G.703

H0173A 64K INTFC V11

8 H0171A WS INTFC 2 MB x 1CH

9

H0174A ASC INTFC VF x 2 CH

H0175A DSC INTFC RS232/RS422 x 2 CH

H0176A ALM INTFC Cluster ALM x 2CH

10 H0098B LAN INTFC 10/100BASE-T(X) x 2CH

11

G5440B PM CARD Serial

G8896B PM CARD Ether

12 H0177A SC LAN INTFC 2 MB/64Kbps


11/117

ROI-S04488 GENERAL

1-7

1.2 Equipment Performance

The performance characteristics of the IDU are listed in Table 1-1.

Table 1-1 Performance Characteristics of IDU

Data signal interface (between IDU and DTE)

Bit rate: 2.048 Mbps 50 ppm (2 x 2 MB/4 x 2 MB/8 x2 MB/16 x 2 MB system)

Level: Meets specification of ITU-T G.703.

Code format: High Density Bipolar-3 (HDB-3)

Impedance: 120 ohms, balanced or 75 ohms, unbalanced

Modulation method: 4-phase shift keying (4 PSK) system

Demodulation method: Quasi-coherent detection

IF signal interface (between IDU and ODU)

Signal frequency

TX: 850 MHz

RX: 70 MHz

Signal level

IF output: 5 dBm, nominal

IF input: 15 to 0 dBm (at, RX IN), varies with cable length(maximum cable length (8D-FB): L = 300m)

Impedance: 50 ohms, unbalanced

Orderwire frequency

Output: 450 kHz, amplitude modulation (AM)

Input: 468 kHz, AM

Power supply: 43 V DC (through) at IF IN/OUT

Control/Monitor signal frequency: 10 MHz, amplitude shift keying (ASK) (at IF IN/OUT)

Analog service channel (ASC) signal interface (optional)

Frequency: 0.3 to 3.4 kHz

Impedance: 600 ohms, balanced


12/117

GENERAL ROI-S04488

1-88 pages

Digital service channel (DSC) signal interface

Bit rate: 9.6 kbps (asynchronous)

64 kbps (G.703/V.11) (optional)

Level: RS-232, RS-422, RS-485 (TERM) or RS-485 (NON TERM)Meet specifications of ITU-T G.703/V.11 (64k)

Note: Depending on combination of optional module, bothASC and DSC cannot be used simultaneously.

Way Side (WS) signal interface (optional in 16 x 2 MB)

Bit rate: 2.048 Mbps

Interface: HDB-3 (ITU-T G.703)

Impedance: 75 ohms or 120 ohms (selectable)

Local Area Network (LAN) signal interface (optional)

Standards Compliance IEEE 802.3 (10 BASE-T), IEEE 802.3u (100 BASE-TX),IEEE 802.3x (Flow control)

Network Port 10 Mbps/100 Mbps andFull/Half duplex Auto negotiation or Fixed

Total Port 2 (Each port is separated)

Flow Control 802.3x (Full Duplex), Back pressure (Half Duplex)

Forwarding Mode Store-and -Forward

Transmission Length Category 5, Max. 100 m

Transmission Rate(Port 1 and Port 2)

2 Mbps to 32 Mbps (selectable, depends on the system)

Dimensions: 482 wide x 44 high x250 deep (mm) for 1+0482 wide x 132 high x265 deep (mm) for 1+1

Weight: Approx. 4 kg (including all options) for 1+0Approx. 11 kg (including all options) for 1+1

Relative Humidity: Less than 90% at +50C (Non-condensing)

Environmental temperature range

Operation: 5C to +50C

Storage: 30C to +70C

Table 1-1 Performance Characteristics of IDU (Contd)


13/117

ROI-S04488 FUNCTIONAL OPERATION

2-1

2. FUNCTIONAL OPERATION

This section describes functional operation of the transmit lineequalization, transmit digital processing, modulation, demodulation,receive digital processing, receive line equalization, analog servicechannel signal transmission, 9.6k digital service channel transmission,alarm signal transmission, wayside signal transmission, 64k digital servicechannel transmission, LAN signal transmission, and alarm and control inthat order for the IDU.

The IDU provides four signal transmission systems; 2 x 2 MB, 4 x 2 MB,8 x 2 MB and 16 x 2 MB in 1+0 and 1+1 configuration as shown in Fig 2-1 and Fig 2-2 Functional Block Diagram.


14/117

FUNCTIONAL OPERATION ROI-S04488

2-2

(This page is intentionally left blank.)


15/117

ROI-S04488

Fig. 2-1 Functional Block Diagram of IDU (1/3)

CH1 IN

CH2 IN

CH1 OUT

CH2 OUT

4 x 2 MB

SYSTEM

8 x 2 MB

SYSTEM

16 x 2 MB

SYSTEM

TRANS

TRANS

TRANS

TRANS

PLS

B-U

AIS

U-B

LOOPBACK

CONV

CONV

MON DETCKT

LOOPBACKCKT

AIS CTRL

AIS CTRL

PLS MONOUTPUT LOSS 1-2

PLS AISMON DET

CH3 IN

CH4 IN

CH3 OUT

CH4 OUT

TRANS

TRANS

TRANS

TRANS

B-U

U-B

CONV

CONV

PLS MON

AIS CTRL

AIS CTRL

LOOPBACKCKT

LOOPBACKCKT

1/8

MEM

MEM

MEM

MEM

MEM

MEM

MEM

MEM

MUX

DEMUX

FE LB CTRL 1-4

FE LB ANS 1-4

P-S CONV

TX CLK LOSS

RX CLK LOSS

S-P CONV

CLK MON

CLK MON

OUTPUT LOSS 1-2OUTPUT LOSS 3-4

AIS RCVD 3-4INPUT LOSS 3-4FE LB CTRL 1-4FE LB ANS 1-4NE LB ANS 1-4

AIS RCVD 1-2INPUT LOSS 1-2 P-S

CONV

S-PCONV

FE LB CTRL 1-4NE LB CTRL 1-4

CH5 INCH6 IN

CH5 OUTCH6 OUT

CH7 INCH8 INCH7 OUTCH8 OUT


CH11 INCH12 IN

CH11 OUTCH12 OUT



(CH13 - CH16)

(CH5 - CH8)

(SAME AS ABOVE)

(CH9 - CH12)

(SAME AS ABOVE)

INPUT LOSS 1-2

AIS RCVD 1-2

INPUT LOSS 3-4

AIS RCVD 3-4

INTFC (CH1 - CH4)

TIM GEN

2 x 2 MB

SYSTEM


16/117

ROI-S04488

Fig. 2-1 Functional Block Diagram of IDU (2/3)

ASC/DSC/ALM INTFC

a

b

c

d

e

f

g

h

P-SCONV

PLS MON

MUX

SCRB

PARITY

CHECK

TIMGEN

PCMCODEC

H

DIFENC

DIGFIL

PLSMON

MSTCLKMON

EOWOUT

EOW IN

EOW

D-ACONV

D-A

CONV

4PHMOD

M

D

ED

EM

VCO450 kHz

MUX ALM 1-4

MOD CW

L BER ALM

H BER ALM

F SYNC ALM

BER ALM

BER THRESHOL

FRAME ID

q

s

SERIAL ALM

F SYNC ALM

rSERIAL DATA

Ethernet SWSPEED CONV

LAN INTFC*

PORT1

PORT2

vRX FPLS

t

u

16M CLK

RX CLK

i

j

k

l

m

n

o

p

S-PCONV DEMUX

TIMGEN

DSCRB

BERDET

F SYNC

DIFDEC

IN

OUT

OUT

INDSC/64K/

A-D CONV/LEV CONV

B-U CONVU-B CONV

64K/SC LAN INTFC*

A-DCONV

70 MHz

DEM

4 PHDEM

A-DCONV

From/ToFIG. 2-1 (1/3)

DPU

MOD

43 V DC

INTERFACE

TX FPLSw

x TX CLKVCO

AIS CTRL OFF

AIS CTRLy

TERMINAL

Note: *

10BASE-T/100BASE-TX

z

WS

IN/OUT

(RJ45)

INTERFACETERMINAL

B-U CONVU-B CONV

WS/SC LAN INTFC*

ASC/EOW

OW/DSC/ASC


17/117

ROI-S04488

Fig. 2-1 Functional Block Diagram of IDU in 1+0 System (3/3)


D

I

F

H

E

G

A

B

C

TX DPU ALM

BER ALM

F SYNC ALM

MOD ALM

DPU SERIAL

DPU SERIAL

DATA UP

DATA DOWN

CPU

S-PCONV

S-PCONV

S-P

CONV

TX PWR ALM

RX LEV ALM

APC 1 ALM

APC 2 ALM

IF INPUT ALM

INPUT LOSS 1-16

TX CLK LOSS

RX CLK LOSS

OUTPUT LOSS 1-16

DEM ALM

H BER ALM

FE LB CTRL 1-16

MOD CW

NE LB CTRL 1-16

AIS CTRL 1-16

CPU ALM

CPU RESET

CPU

LA PORT

NMS/RA

Notes: 1. *Optional.

2. Four relay contacts are outputed from interface terminal (ALM/ALM AUX). Plural alarms can be appliedto a single relay. The figure shows the default settings. Refer to paragraph 3.4 for changing the settings.

3. Refer to the table 3.1 Interface Terminals and Jacks for the details of pin assignment for the alarm signals.

CPU CLK

PM CARD*

PHOTOCOUPLERs

RELAYs

INTERFACETERMINAL

HOUSEKEEPINGOUTPUT

HOUSEKEEPINGINPUT

INTERFACETERMINAL


18/117

ROI-S04488


CH1 IN

CH2 IN

CH1 OUT

CH2 OUT

4 2 MB

SYSTEM

8 2 MB

SYSTEM

16 2 MB

SYSTEM

PLS

B-U

AIS

U-B

LOOPBACK

CONV

CONV

MON DETCKT

LOOPBACKCKT

AIS CTRL

AIS CTRL

PLS MONOUTPUT LOSS 1-2

PLS AISMON DET

CH3 IN

CH4 IN

CH3 OUT

CH4 OUT

B-U

U-B

CONV

CONV

PLS MON

AIS CTRL

AIS CTRL

LOOPBACKCKT

LOOPBACKCKT

1/8

MEM

MEM

MEM

MEM

MEM

MEM

MEM

MEM

MUX

DEMUX

FE LB CTRL 1-4

FE LB ANS 1-4

P-S CONV

TX CLK LOSS

RX CLK LOSS

S-P CONV

CLK MON

CLK MON

OUTPUT LOSS 1-2OUTPUT LOSS 3-4

AIS RCVD 3-4INPUT LOSS 3-4FE LB CTRL 1-4FE LB ANS 1-4NE LB ANS 1-4

AIS RCVD 1-2INPUT LOSS 1-2 P-S

CONV

S-PCONV

FE LB CTRL 1-4NE LB CTRL 1-4

CH5 INCH6 IN

CH5 OUTCH6 OUT



CH11 INCH12 IN

CH11 OUTCH12 OUT



(SAME AS ABOVE)

INTFC SECTION (CH13 - CH16)

(SAME AS ABOVE)


(SAME AS ABOVE)


INTFC SECTION (CH1 - CH4)INPUT LOSS 1-2AIS RCVD 1-2

INPUT LOSS 3-4

AIS RCVD 3-4

2 2 MB

SYSTEM


19/117

ROI-S04488


D-ACONV 4 PH

MOD

D-ACONV

DIGFIL

DIFENC

SCRB

PARITYCHECK

MUX

PLSMON

MSTCLK

MON

TIMGEN

P-SCONV

PLS MONTX FPLS

TX CLK

g

s

y

SERIAL ALM

F SYNC ALM

AIS CTRL


S-PCONV

A-DCONV

A-DCONV

BERDET

F SYNC

DIFDECDSCRB

TIMGEN

DEMUX

RX FPLS

12M CLK

RX CLK

No. 2 MD UNIT

(SAME AS ABOVE)

2 1

CLK MON

RXSW

H

H

H

H

H

H

H

H

h

g

f

e

d

c

b

a

x

w

H

H

SW

RXSW

ETHERNET SW

SPEED CONVPORT2

PORT110 BASE-T100 BASE-TX

EOWIN/OUT

LAN INTFC *

p

o

n

m

l

k

j

i

u

t

v

RX SW/HL SW

RXSW

To RX SWRX SW CONT6From FIG. 2-2 (4/4)

H

ASC/DSC/ALM INTFC *

B-U CONV/DPU

U-B CONV/DPU

64K/SC LAN INTFC *

H

IN

OUT

OW/DSC/ASC

IN

OUT

DSC/64K/

RX CLK LOSSFrom/To FIG. 2-2 (4/4)

4 3

DPU

No. 1 MD UNITSW UNIT

Note: * Optional.


From/To FIG. 2-2 (4/4)TX CLK LOSS


MDP

850 MHzVCO

PCMCODEC

CLK MON

H

WS/SC LAN INTFC *IN

OUT

WS/SC LAN

B-U CONV/DPU

U-B CONV/DPU

SW

ASC/EOW

A-D CONV/LEV CONV

(RJ45)


20/117

ROI-S04488


TX SW CTRLFrom/To FIG. 2-2 (4/4)

From/To FIG. 2-2 (2/4)

S/P

5

F

I

INTFC SERIAL

a

A

B

C

D

JBER ALM

F SYNC ALM

DATA UP

DATA DOWN

CPU CLK

TX DPU ALM


FE LB CTRL R 1-4

DPUSERIAL

FE LB ANS R 1-4

INPUT LOSS 1-4

AIS RCVD 1-4

NE LB ANS 1-4

TX IN CLK LOSS

RX IN CLK LOSSOUTPUT LOSS 1-4

AIS SEND 1-4

DEM ALM

L BER ALM

H BER ALM

ODUSERIAL

DPUSERIAL

CPU ALM

P/SCONV

CPU

S-PCONV

S-PCONV

TX PWR ALM

RX LEV ALM

APC 1 ALM

APC 2 ALM

IF INPUT ALM

ALM CTRL (No. 1 CH)

INPUT LOSS 1-16

AIS RCVD 1-4

TX IN CLK LOSS

RX IN CLK LOSS

OUTPUT LOSS 1-16

DEM ALM

L BER ALM

H BER ALM

FE LB CTRL 1-16

MOD CWNE LB CTRL 1-16

AIS CTRL 1-16

S-PCONV

P/S CONVRESET

CPU

FE LB CTRL

PM CARD*

S/PCONV

P/SCONV

NE LB CTRL

DEM ALM

MOD ALM

DPU SERIAL

H

E

b

G

c

TX 1 ALM

RX 1 ALM

To FIG. 2-2 (1/4) rSERIAL DATA

LAPORT

NMS/RA

MAIN BOARD 1 SERIAL

MAIN BOARD 2 SERIAL

d

e

f

TX 2 ALM

From FIG. 2-2 (4/4)



RX 2 ALM


(SAME AS ABOVE)

ALM CTRL (No. 2 CH)

To FIG. 2-2 (4/4)

5

r

PTS

KLMNROQ

TX SW CTRL

INTFC SERIALBER ALMF SYNC ALM

DATA UPDATA DOWNCPU CLKTX DPU ALMDEM ALMMOD ALMDPU SERIAL

SERIAL DATA

INTERFACE TERMINAL

PHOTOCOUPLERs

RELAYsHOUSEKEEPING

OUTPUT

HOUSEKEEPING

INPUT


21/117

ROI-S04488


MOD 1 ALM

S/P

S/P

S/P

TX CLK LOSS 11

TX SW CTRL

TX CLK LOSS 2

RX CLK LOSS 1

RX SW CTRL

RX CLK LOSS 26

5

2

3

4

To FIG. 2-2 (3/4)

From FIG. 2-2 (2/4)


TX 1 ALMa

TX 2 ALM

RX 1 ALM

d

b

TX DPU 1 ALM

TX PWR 1 ALM

APC 11 ALM

APC 12 ALM

IF INPUT 1 ALM

OPR 1 ALM

MOD 2 ALM

TX DPU 2 ALM

TX PWR 2 ALM

APC 21 ALM

APC 22 ALM

IF INPUT 2 ALM

OPR 2 ALM

APC 11 ALM

APC 12 ALM

RX LEV 1 ALM

OPR 1 ALM

F ASYNC 1 ALM

DEM 1 ALM

BER 1 ALM

APC 21 ALM

APC 22 ALM

RX LEV 2 ALM

OPR 2 ALM

F ASYNC 2 ALM

DEM 2 ALM

BER 2 ALM

S/PRX 2 ALM

e


cMAIN BOARD 1 SERIAL

S/P

S/Pf MAIN BOARD 2 SERIAL

TX PWR 1 ALM

APC 11 ALM

MUX ALM 1

RX LEV 1 ALM

OUTPUT LOSS 1-4

H BER 1 ALM

FE LB CTRL 1-4

MOD 1 CW

NE LB CTRL 1-4

AIS CTRL S 1-4

APC 12 ALM

IF INPUT 1 ALM

INPUT LOSS 1-4

TX PWR 2 ALM

APC 21 ALM

MUX ALM 2

RX LEV 1 ALM

OUTPUT LOSS 1-4

H BER 1 ALM

FE LB CTRL 1-4

MOD 1 CW

NE LB CTRL 1-4

AIS CTRL S 1-4

APC 22 ALM

IF INPUT 1 ALM

INPUT LOSS 1-4

RX SWCTRL LOGIC

TX SWCTRL LOGIC

From FIG. 2-2 (2/4)


ALM CTRL (COMMON)

OPRSEL

No. 1I

AUTOI

No. 2

RL 1

RL 2

RL 3

RL 4

RL 5

RL 6

RL 8

RL 7

MAINT

Notes : 1. Eight relay contacts are outputed from interface terminal (ALM TERMINAL). Plural alarmscan be applied to a single relay. The figure shows the default settings. Refer to paragraph 3.4

for changing the settings.

2. Refer to the table 3.2 for Interface Terminals and Jacks for the details of pin assignment forthe alarm signals.


22/117


2-17

2.1 Transmit Line Equalization

This section describes the bipolar-to-unipolar code conversion,multiplexing and parallel-to-serial conversion.

2.1.1 Bipolar-to-Unipolar Code Conversion

The signals applied to the TRAFFIC IN terminal are (*) 2.048 Mbps datastreams in a bipolar pulse format of the high density bipolar-3 (HDB-3)code. Each bipolar-coded data stream is converted into an NRZ unipolardata stream.

Note: *2 MB 2 system: two2 MB 4 system: four2 MB 8 system: eight2 MB 16 system: sixteen

2.1.2 Multiplexing

To obtain time slots for multiplexing, the 2.048 Mbps Ndata streams arewritten in to a buffer memory and read out with radio section clock havinga time gap. The data streams having a time gap are sent to a multiplexer(MUX) circuit, here, alarm information, AIS RCVD, loopback control/answer, alarm/control signals and stuff information bits, etc. are inserted

into the location of the time gap.

2.1.3 Parallel-to-Serial Conversion

The signal streams which are formatted in radio frame, are fed to the DPUcircuit.

2.2 Transmit Digital Processing

This section describes the multiplexing, scrambling and parity check.

2.2.1 Multiplexing

The data streams having a time gap are sent to the MUX in which framepattern, multiframe pattern, analog service channel (ASC), digital servicechannel (DSC), WS, LAN data signals and parity check bits are insertedinto the respective locations of the time gap. The multiplexed data streamsare fed to the SCRB circuit.


23/117


2-18

2.2.2 Scrambling

To smooth the RF spectrum and to restore the clock at the receiving end,the multiplexed data streams are scrambled with the 12th (for 4 x 2 MB) or14th (for 2 x 2 MB, 8 x 2 MB and 16 x 2 MB,) pseudo random patterngenerated by the timing generator (TIM GEN) so that the transmissionmark ratio is 1/2. Then the scrambled data stream is sent to the differentialencoder (DIFF ENCOD).

2.2.3 Parity Check

For detecting the bit error at the receiving end, the parity check bits are

calculated and multiplexed into the radio frame signal streams.

2.3 Modulation

This section describes the differential encoding, 4-phase shift keyingmodulation and orderwire signal modulation.

2.3.1 Differential Encoding

In the 4-phase shift keying modulation system, the demodulator phase maynot coincide with the modulation signal of the opposite transmitting end

which give raise to phase ambiguity. To avoid this, an absolute referencephase is needed between the transmitting and receiving ends.

As shown in Table 2-1, the two independent data streams fed from theSCRB circuit are represented as an arrangement of Gray-coded binarydigits. The two-bit Gray-coded data streams are then converted into pulsestreams in natural binary code for facilitating differential encoding.

Table 2-1 Binary Combinations

DECIMAL GRAY CODENATURAL

BINARY CODE

0 0 0 0 0

1 0 1 0 1

2 1 1 1 0

3 1 0 1 1


24/117


2-19

Table 2-2 shows typical operation of the differential encoding circuit.

Phases in the natural-binary-coded pulse streams are accumulated inquaternary notation at every time slot. The data streams thus encoded arereconverted into pulse streams in gray code and then sent to a driver.

Note: * Operating process given above assumes that the initial time slotis 0.

2.3.2 4-Phase Shift Keying Modulation

To permit 4-phase shift keying modulation, the encoded data streams areconverted into two separate two-level baseband signals for the P and Qchannels by the digital-to-analog converter (D-A CONV) on the MOD

section according to the logical status (see Fig. 2-3). To limit theassociated transmitter output power spectrum, the voltage spectrum of thetwo-level baseband signal is shaped by each low-pass filter. The filteredsignals are applied to a 4-phase modulator (4PH MOD).

To obtain an 850 MHz IF carriers for 4PH MOD, an 850 MHz carrier isgenerated by the 850 MHz voltage controlled oscillator (VCO), and is splitinto two for the P and Q channels. The 850 MHz carrier for the Q channelis phase-shifted by /2 from the P channel.

The MOD modulates each of the 850 MHz carriers with a related two-level baseband signal, and combines the modulated 850 MHz signals on

the P and Q channels to arrange a four-phase assignment as shown in Fig.2-2.

The obtained 850 MHz IF signal is filtered by a LPF for eliminating theout-of-band components, amplified up to the required level by anautomatic gain control (AGC) amplifier and sent to the ODU. Then, it iscombined with 450 kHz amplitude-modulated engineering orderwire(EOW) signal and 10 MHz amplitude shift keying (ASK)-modulatedcontrol signal.

Table 2-2 Typical Operation of Differential Encoding Circuit

TIME SLOT 0* 1 2 3 4 5 6 7 8 9 10 11 ...

NATURAL-BINARY-CODEDDATA

Data 1 0 1 1 1 0 1 0 1 0 1 0 ...

Data 2 1 1 0 0 0 0 1 1 0 1 1 ...

Quaternary 1 3 2 2 0 2 1 3 0 3 1 ...

ENCODEDDATA

Quaternary 0 1 0 2 0 0 2 3 2 2 1 2 ...

Data 1 0 0 0 1 0 0 1 1 1 1 0 1 ...

Data 2 0 1 0 0 0 0 0 1 0 0 1 0 ...

+ + + + +


25/117


2-20

Fig. 2-3 PSK Modulation

2.3.3 Orderwire Signal Modulation

To facilitate an EOW between the IDU and ODU, the EOW signal isamplitude-modulated with the 450 kHz carrier by the orderwire modulator(EOW MOD) on the MOD section. The modulated EOW signal is filteredto eliminate higher out-of-band noise, amplified up to the required leveland combined with the 850 MHz IF signal through a band-pass filter(BPF). This eliminates lower out-of-band noise, receiving IF signal (70MHz), and an arrester (ARSR) protecting the equipment from harmfulvoltages caused by lightning.

2.4 Demodulation

This section describes the EOW and alarm signal demodulation, mainsignal demodulation and differential decoding.

2.4.1 EOW and Alarm Signal Demodulation

The received (RX) signal from the ODU contains a 70 MHz IF signal, 468kHz amplitude-modulated EOW signal and 10 MHz ASK-modulatedalarm (ALM) signal. The RX signal is branched into two separate signals;One is sent to the DEM section through the BPF which eliminates the

transmitting IF, EOW and ALM signals, and the other goes through a BPFwhich eliminates the 70 MHz IF signal. The orderwire demodulator (EOWDEM) demodulates the 468 kHz amplitude-modulated EOW signal. Thedemodulated 10 MHz ASK alarm signal is sent to the CPU for furtherprocessing.

P

-L

Q-L +L

+L

/2

3/2

0

STATUS P CHANNEL Q CHANNEL

1(0) -L -L

2(/2) -L +L

3() +L +L

4(3/2) +L -L


26/117


2-21

2.4.2 Main Signal Demodulation

The incoming 70 MHz IF signal is amplified up to the required level by anAGC amplifier and split into two separate signals for the P and Q channelsand then fed to the mixer. In addition to the 70 MHz IF signals, twocarriers having a phase difference of/2 produced by the carrier recoverycircuit, which consists of a carrier synchronizer, a 70 MHz oscillator, and acarrier splitter ( /2), are applied to the decision circuit. In the decisioncircuit, each 70 MHz IF signal is coherent-detected with the related carrierto represent the original baseband signal corresponding to the phaseassignment (see Fig. 2-4).

Fig. 2-4 Demodulation

The clock oscillator circuit generates a 38.383 MHz clock for the analog-to-digital converter (A-D CONV) circuits. In the A-D CONV, two 38.383Mbps data streams are regenerated with 38.383 MHz clock. Then the twore-generated 38.383 data streams enter the differential decoding (DIFFDECOD) circuit.

2.4.3 Differential Decoding

The process of differential decoding is the reverse of the differentialencoding at the transmitting end. In the natural binary-coded pulsestreams, the phase of the time slot leading one bit before an incoming timeslot is subtracted in quaternary notation from that of the incoming timeslot. The decoded 38.383 Mbps data streams are sent to the framesynchronizer and descramblers on the DPU section of the MAIN BOARDfor receive digital processing.

Note: 1 is replaced by logic 0 and +1 by logic 1.

/2

3/2

0

INPUT

PHASE

DETECTED OUTPUT

P CHANNEL Q CHANNEL

0 -1 -1

/2 -1 +1

+1 +1

3/2 +1 -1

CARR 1

CARR 2


27/117


2-22

2.5 Receive Digital Processing

This section describes the frame synchronization, descrambling anddemultiplexing.

2.5.1 Frame Synchronization

FS bits which are multiplexed at the transmitting end are detected andcomparing to establish the frame synchronizer.

2.5.2 Descrambling

To recover original data streams from received data streams, descramblingis performed by using the same frame pattern as the transmitting end.

2.5.3 Demultiplexing

The two descrambled data streams enter the demultiplexer (DEMUX).The DEMUX circuit extracts the frame pattern, multiframe pattern, ASCand DSC signal bits, etc. from overhead bits with a clock produced at theTIM GEN.

2.6 Receive Line EqualizationThis section describes the demultiplexing and unipolar-to-bipolar codeconversion.

2.6.1 Demultiplexing

From received data streams, the alarm information, AIS RCVD, loopbackcontrol/answer and stuff information bits, etc. are extracted by theDemultiplexer (DEMUX) circuit. Then, 2.048 Mbps x N unipolar data/CLK signals are fed to the next U/B CONV circuit.

2.6.2 Unipolar-to-Bipolar Code Conversion

To provide the associated DTE with the original data stream in bipolarpulse format, the unipolar-coded 2.048 Mbps data streams are convertedinto 2.048 Mbps data streams in the specified bipolar pulse format (HDB3)by the U-B CONV circuit on the INTFC section.


28/117


2-23

2.7 Analog Service Channel Signal Transmission (Optional)

An analog service channel (ASC) transmission is performed in the ASCINTFC section, which provides the pulse code modulation codec (PCMCODEC) and PCM decodec (PCM DECOD) circuits. The ASCtransmission is described in accordance with transmission side and receiveside, respectively.

2.7.1 ASC Transmit Side

An analog signal applied to the ASC IN terminal is passed on to PCMCODEC circuit. An analog signal is converted into a 80 kbps (approx.)

digital signal at the PCM CODEC circuit by 10 kHz (approx.) timing pulseand 80 kHz (approx.) clock signal received from the MAIN BOARD. Theconverted digital signal is fed to the MAIN BOARD.

2.7.2 ASC Receive Side

The 80 kbps (approx.) digital signal received from the MAIN BOARD isapplied to the PCM DECOD circuit. This 80 kbps (approx.) bps digitalsignal is converted into an analog signal by the 10 kHz (approx.) timingpulse and 80 kHz (approx.) clock signal, and then the analog signal is fedto the ASC OUT terminal.

2.8 9.6 K Digital Service Channel Transmission

The 9.6 K digital service channel (DSC) transmission is explained in thefollowing section:

TRANSMISSIONCHANNEL

DSC 1 and DSC 2 MAIN BOARD


29/117


2-24

2.8.1 DSC Transmit Side

The DSC signal received from DSC IN terminal is applied to levelconverter circuit. Here, the DSC signal is converted into 9.6 K transistor-transistor logic (TTL) level in the level converter and fed to the digitalprocessing unit (DPU) circuit on the MAIN BOARD. In the DPU circuit,9.6 K (TTL) signal is converted into 40 kbps (approx.) with 40 kHz(approx.) clock produced at the MAIN BOARD, and fed to the oppositestation.

2.8.2 DSC Receive Side

The 40 kbps (approx.) extracted from DPU circuit on the MAIN BOARDis converted into 9.6 K (TTL) signal with 9.6 kHz clock. The 9.6 K (TTL)signal is converted into 9.6 K DSC signal in the level converter, and fed tothe DSC OUT terminal.

2.9 Alarm Signal Transmission

With optional ALM INTFC card, two channels cluster alarm transmissionprovides for external/internal alarm signal extension.

2.10 Wayside Signal Transmission (Optional)

The wayside (WS) signal transmission is performed in the WS INTFCsection.

2.10.1 WS Transmit Side

The 2.048 Mbps bipolar signal applied through the WS IN terminal is fedto the bilopar-unipolar converter (B-U CONV) circuit, where it isconverted into a NRZ unipolar signal. NRZ unipolar signal is code-converted by the HDB-3 decoder. The code-converted 2.048 Mbps WSdata signal is fed to the MAIN BOARD together with the clock.

2.10.2 WS Receive Side

The process of RX side is the reverse of the process of the TX side. The2.048 Mbps WS data signal and clock are applied to the HDB-3 encoder.In the HDB-3 encoder, 2.048 Mbps WS signal is code-converted and fedto unipolar-bipolar converter (U-B CONV). The 2.048 Mbps unipolardata signal is converted into the 2.048 Mbps bipolar data stream and fed tothe WS OUT terminal.


30/117


2-25

2.11 64 K Digital Service Channel Transmission

Two types of transmission are provided for the service channel:codirectional transmission conforming to ITU-T G.703 and transmissionconforming to V.11. Each transmission scheme corresponds to the type of64K INTFC section.

2.11.1 Service Channel Transmission of G.703 Codirectional

(a) TX Side

A 64 kbps bipolar signal is applied to the 64K INTFC section, thenconverted to a unipolar signal by the B-U CONV circuit. The

unipolar signal is then code-converted with a decoder. The code-converted signal is stuff-synchronized with 80 kHz (approx.)clock, then converted into a radio transmission format. Afterconversion, a 80 kbps (approx.) data signal is fed to the MAINBOARD.

(b) RX Side

The process of RX side is the reverse of the process of the TX side.A 80 kbps (approx.) data signal and the 80 kHz (approx.) clocksignal from the MAIN BOARD are entered in the synchronizercircuit for the frame synchronization. The frame synchronized datasignal is de-stuffed and converted into 64 kbps data signal. The

resulting 64 kbps data signal is code-converted into G.703 signalwith an encoder circuit, then converted again with the unipolar-bipolar converter (U-B CONV) circuit into a 64 kbps bipolar datasignal which is transmitted to the output terminal.

2.11.2 Service Channel Transmission of V.11

(a) TX Side

The 64 kbps (approx.) unipolar data signal and the 64 kHz(approx.) clock signal are entered into 64K INTFC section. The 64kbps unipolar data signal undergoes stuff-synchronization with the

80 kHz (approx.) clock signal, then is converted into a format forthe radio transmission and fed to the MAIN BOARD as a 80 kbps(approx.) data signal.

(b) RX Side

The process of RX side is the reverse of the process of the TX side.The 80 kbps (approx.) unipolar data signal from the MAINBOARD and the 80 kHz (approx.) clock signal are entered into64K INTFC section. The data signal then is frame synchronizedwith the frame synchronizer circuit, then de-stuffed converted intoa 64 kbps unipolar data signal with a 64 kHz clock signal, and isfed to the output terminal.


31/117


2-26

2.12 LAN Signal Transmission

The data signal for LAN (10BASE-T or 100BASE-TX) transmission isperformed in the LAN INTFC module. Radio section throughput isselectable for each port. When 2 Mbps throughput is selected, ITU-TG.704 framing mode setting is available.

2.12.1 Transmit Side

The data signal applied through the LAN PORT1 and/or PORT2 terminalsis fed to the LAN signal Switch Circuit which selects 10BASE-T or 100BASE-TX. The data signal is converted to HDLC like frame for radio

transmission and multiplexed with specified frame in the main data signal.

2.12.2 Receive Side

The data signal for LAN network is extracted from the main data signal.This data signal is performed HDLC like frame detection and fed to theLAN signal switch. The data signal from the LAN signal switch is outputthrough the LAN PORT1 and/or PORT2 terminals.

Note: The switching of data between PORT1 and PORT2 is notavailable.

2.13 Alarm and Control Functions

Alarm and control functions of the IDU are described herein. Faultdetection circuits are provided in the IDU, sending signals to give alarmindications and remote alarm reports (see Fig. 2-1, Fig. 2-2 and Table 2-3).

The alarm signals initiated by detection circuits in the ODU are also sent tothe IDU. Therefore, the total alarm indications for the IDU and ODU areprovided by the IDU and ODU indicators on the IDU. When theequipment is operating normally, these indicators on the IDU stay unlit.

When an abnormal condition occurs in the IDU (except power supplyfailure), the IDU indicator lights and a remote alarm report is made. Thesame applies for the ODU indicator.

To monitor/control the alarm and status of IDU/ODU, PM CARD modulecommunicates with pasolink network management system (PNMS) orpasolink network management terminal (PNMT) via RS-232C (19.2kbps).


32/117


2-27

The PM CARD (Pasolink Management Card) provides the following

functions:

Communication with PNMS and PNMT

Communication with ALM CONT of the IDU

Communication with opposite PM CARD

Data collection of performance monitor

Forward input housekeeping alarm signals to PNMS or PNMT

Outputs of dry contact by control from PNMS or PNMT

The PM CARD collects up to 300 items of events and performanceinformation from IDU and ODU, and stores performance information forup to eight days.

Notes in the Table 2-3 are as follows.

Notes:*1. These alarms are initial value condition (for setting method,refer to paragraph 3.4.2 in this Section III).

* 2. The alarm indication depends on system requirement (forsetting method, refer to paragraph 3.4.2 in this Section III).

* 3. The WS alarm indications can be inhibited. The WS alarmitems are masked when the WS is not provided.

1. In an alarm condition, when the equipment is set tomaintenance condition, the TX ALM, RX ALM and BER ALM

for remote reporting are disabled.

2. When the IF cable between the IDU and ODU is electric shortcircuit condition or open condition, the IDU and ODU ALM

LEDs are synchronously flashing.


33/117


34/117

ROI-S04488 OPERATION

3-1

3. OPERATION

This section provides instructions for operation of the IDU. Included isinformation on the interface terminals, interface jacks, controls, indicators,test jacks, equipment start-up and equipment shut-down.

3.1 Interface Terminals and Jacks

The IDU has interface terminals and jacks to interconnect data signals,alarm, IF signals and line power with the associated equipment. Theseinterface terminals and jacks are located on front of the equipment asshown in Fig. 3-1 and Fig. 3-2. The details of terminals and jacks forsignal interface are described in Table 3-1 and Table 3-2.

Caution: In back -to-back connection, the interface conditions of the PM CARD must be matched between two IDUs. Then,check the setting of the interface if it is RS-485 or RS-232Cbefore connecting the cable.

Fig. 3-1 Front View of the IDU for Interface Connectors and Jacks in 1+0 System

IDU

Without LAN option

With LAN option



NMS LANWS/SC LANPORT1 PORT2

100M 100MIFIN/OUT

CALLRESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+



NMS LANWS/SC LAN

CALLRESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+

IFIN/OUT


35/117


36/117


3-3

Table 3-1 Interface Terminals and Jacks in 1+0 system (1/8)

Terminal Description

IDU

TRAFFIC IN/OUT

(CH 1 to CH 8)

(D-sub Connector, 37 Pins)

2.048 Mbps HDB-3 coded data input/output from/to DTE

(CH 1 to CH 8)

Pins 1 (+) and 2 () CH8 data input








Pins 20 (+) and 21 () CH8 data output








Pins 5,10,15,24 and 33 Ground

TRAFFIC IN/OUT

(CH 9 to CH 16)


2.048 Mbps HDB-3 coded data input/output from/to DTE

(CH 9 to CH 16) (for 16 x 2 MB system only)






37/117

OPERATION ROI-S04488

3-4











Pins 34 (+) and 35 () CH 10 data output



10/100BASE-T IN/OUT

(Modular Connector RJ-45 8pins)

(PORT1/PORT2)

LAN signal input/output (optional)

(MDI-X/MDI auto-sensing)

MDI-X MDI

Pin 1 RD + TD +

Pin 2 RD TD

Pin 3 TD + RD +

Pin 6 TD RD

IF IN/OUT

(N-P Connector)

TX IF signal output to ODU and RX IF signal input from

ODU

Caution: Do not connect other cables to this jack, becausethe 43 V DC power is superimposed on thisjack.

Danger: Do not touch the jack core before turning offpower switch.




38/117


3-5

OW/DSC/ASC


Engineering orderwire (EOW), digital service channel (DSC),

analog service channel (ASC) and ALARM signal input/

output

Pins 1 (+) and 2 ()/

Pins 1 and 2*2ASC1 input (VF) (optional) or Alarm1*2 input (optional)

Notes: 1. *2 Applies to the ALM INTFC module.2. Cluster Alarm 1 input (photocoupler)

Normal signal in : OpenAlarm signal in : Closed

Pins 3 (+) and 4 ()/




Pins 5 (+) and 6 () EOW input (VF)

Pins 7 (+) and 8 () 64 kHz clock input*1

Pins 9 (+) and 10 () DSC1 input (RS-232C, 64K (G.703)*1 or 64K (V.11)*1 )

Pins 11 (+) and 12 () DSC2 input (RS-232C, RS-422 or RS-485)

Pins 14 (+) and 15 ()/

Pins 14 and 15*2

ASC1 output (VF) (optional) or Alarm1*2output (optional)

Notes: 1. *2 Applies to the ALM INTFC module.2. Cluster Alarm 1 output (relay contact)

Normal signal out : OpenAlarm signal out : Closed

Pins 16 (+) and 17 ()/

Pins 16 and 17*2

ASC2 output (VF) (optional) or Alarm2*2 output (optional)

Notes: 1. *2 Applies to the ALM INTFC module.2. Cluster Alarm 2 output (relay contact)


Pins 18 (+) and 19 () EOW output (VF)

Pins 20 (+) and 21 () 64 kHz clock output*1

Pins 22 (+) and 23 () DSC1 output (RS-232C, 64K (G.703)*1 or 64K (V.11)*1)

Pins 24 (+) and 25 () DSC2 output (RS-232C, RS-422 or RS-485)




39/117


3-6

Pin 13 Ground

Notes:1. *1 Optional2. Both ASC and DSC 64K cannot be used

simultaneously.

ALM/AUX ALM


Alarm and transmission network surveillance auxiliary alarm

input/output

Pins 1 (COM), 2 (NO) and

3 (NC)Transmitter alarm output*3

Between Between

Pins 1 and 2 Pins 1 and 3

Normal state : Open Closed

Alarm state : Closed Open

Pins 4 (COM), 5 (NO) and

6 (NC)Receiver alarm output*3

Between Between




Pins 20 (COM), 21 (NO)

and 22 (NC)

BER alarm output when BER worse than 10-6/10-5/10-4/10-3

(selectable)*3Between Between





and 25 (NC)Maintenance alarm output*3

Between Between




Note:*3 The BER threshold values and alarm items are setin factory (default). To change the setting of alarmitems by the PC, refer to Section 3.4.1 AlarmTable of this Manual.

(Housekeeping alarm input through optional PM CARD.)

Pin 7 Input 11

Pin 8 (G) Input 12

Pin 9 Input 21




40/117


3-7

Pin 10 (G) Input 22

Pin 11 Input 31

Pin 12 (G) Input 32

Pin 13 Input 41

Pin 14 (G) Input 42

Pin 15 Input 51

Pin 16 (G) Input 52

Pin 17 Input 61

Pin 18 (G) Input 62

(Housekeeping control output through optional PM CARD.)

Pin 26 Output 11

Pin 27 Output 12

Pin 28 Output 21

Pin 29 Output 22

Pin 30 Output 31

Pin 31 Output 32

Pin 32 Output 41

Pin 33 Output 42

Pin 19 Ground

Pins 34 and 35 Not Used

Note: Input[ ] indicates the input of housekeeping alarm.

The figure means that same order of tens makes thesame pair e.g. 11/12 forms a pair. IDU side interfaceuses that of photo-coupler, the photo-coupler turnsON if pair elements contact with each other.Output[ ] indicates the output of housekeepingalarm. Figure means the same as in the Input. IDUside output uses the relay contact interface.

Pin 36 Input terminal of buzzer signal

Note: In back-to-back station, the buzzer informationtransmits to the next station.




41/117


3-8

Pin 37 Output terminal of buzzer signal

Note: In back-to-back station, the buzzer informationtransmits to the next station.

NMS/RA


Network management system (NMS) data input/output or

remote access (RA) data input/output

Note: When the PM CARD is not mounted on theequipment, this connector is used for Remote Access.

PM CARD RA

Pin 1 Party alarm management system RA TXD

(PAMS) TXD

Pin 2 EMS TXD/TXD+ RA GND

Pin 3 EMS RXD/TXD RA RXD

Pin 4 EMS TXDR RA RTS

Pin 5 EMS TRS/RXD+ RA CTS

Pin 6 EMS CTS/RXD

Pin 7 Ground

Pin 9 PAMS RXD

Pin 10 NMS TXD/TXD+

Pin 11 NMS RXD/TXD

Pin 12 NMS TXDR

Pin 13 NMS RTS/RXD+

Pin 14 NMS CTS/RXD

LA PORT(D-sub Connector, 15 pin)

Control/monitoring signal input/output from/to personalcomputer

Pin 1 TXD

Pin 3 RXD

Pin 4 RTS

Pin 5 CTS

Pin 11 LOCAL CTS

Pin 12 LOCAL RTS




42/117


3-9

Pin 13 LOCAL RXD

Pin 15 LOCAL TXD

Pins 2, 8 and 14 Ground

NMS LAN

(RJ45 8 pins)

Network management station (PNMS) data input/output

Pin 1 LAN PNMS TX+

Pin 2 LAN PNMS TX

Pin 3 LAN PNMS RX+

Pin 6 LAN PNMS RX

WS /SC LAN

(RJ45 8 pins)

Way side signal input/output

For 120 ohms balanced interface

Pin 1 (+) and Pin 2 () WS OUT

Pin 4 (+) and Pin 5 () WS IN

Pin 8 Frame Ground (G)

For 75 ohms unbalanced interface

Pin 1 and Pin 8 (G) WS OUT

Pin 4 and Pin 8 (G) WS IN

Note: Available if WS INTFC is equipped.Disable when SC LAN INTFC is equipped.

WS /SC LAN

(RJ45 8 pins)

DSC data for LAN

Pin 1 LAN DSC TX+

Pin 2 LAN DSC TX

Pin 3 LAN DSC RX+

Pin 6 LAN DSC RX

Note: Available when SC LAN INTFC is equipped. Disabled when ALM INTFC, ASC INTFC or DSCINTFC 64K is used.




43/117


3-10

SEL V (LINE IN)

(Molex M5557-4R Connector, 4

Pins)

20 V to 60 V/+20 V to +60 V DC power input

Note: The range of DC power input depends on systemrequirement.

Pin 1 0 V*4 (or +48 V*5)

Pin 2 48 V*4 (or 0 V*5)

Note: *4 20 V to 60 V DC power input.

*5 +20 V to +60 V DC power input.

FG Frame ground




44/117


3-11

Table 3-2 Interface Terminals and Jacks of 1+1 System (1/9)


TRAFFIC IN/OUT

(CH 1 to CH 8)


2.048 Mbps HDB3 coded data input/output from/to DTE

(CH 1 to CH 8)


















TRAFFIC IN/OUT(CH 9 to CH 16)


2.048 Mbps HDB3 coded data input/output from/to DTE(CH 9 to CH 16) (for 16 x 2 MB system only)







45/117


3-12













10/100BASE-T IN/OUT

(Modular Connector RJ-45 8pins)(PORT1/PORT2)

LAN signal input/output (optional)

(MDI-X/MDI auto-sensing)MDI-X MDI

Pin 1 RD + TD +

Pin 2 RD TD

Pin 3 TD + RD +

Pin 6 TD RD

IF IN/OUT

(N-P Connector)

TX IF signal output to ODU and RX IF signal input from ODU

Caution: Do not connect other cables to this jack, becausethe 43 V DC power is superimposed on this jack.

Danger: Do not touch the jack core before turning offpower switch.




46/117


3-13

OW/DSC/ASC


Engineering orderwire (EOW), digital service channel (DSC),

analog service channel (ASC) and ALARM signal input/output

Pins 1 (+) and 2 ()/




Pins 3 (+) and 4 ()/




Pins 5 (+) and 6 () EOW input (VF)

Pins 7 (+) and 8 () 64 kHz clock input*1

Pins 9 (+) and 10 () DSC1 input (RS-232C, 64K (G.703)*1 or 64K (V.11)*1)

Pins 11 (+) and 12 () DSC2 input (RS-232C, RS-422 or RS-485)

Pins 14 (+) and 15 ()/

Pins 14 and 15*2ASC1 output (VF) (optional) or Alarm1*2 output (optional)

Notes: 1. *2Applies to the ALM INTFC module.2. Cluster Alarm 1 output (relay contact)


Pins 16 (+) and 17 ()/

Pins 16 and 17*2

ASC2 output (VF) (optional) or Alarm2*2 output (optional)

Notes: 1. *2Applies to the ALM INTFC module.2. Cluster Alarm 2 output (relay contact)


Pins 18 (+) and 19 () EOW output (VF)

Pins 20 (+) and 21 () 64 kHz clock output*1

Pins 22 (+) and 23 () DSC1 output (RS-232C, 64K (G.703)*1 or 64K (V.11)*1)

Pins 24 (+) and 25 () DSC2 output (RS-232C, RS-422 or RS-485)

Pin 13 Ground

Notes:1. *1 Optional2. Both ASC and DSC 64K cannot be usedsimultaneously.




47/117


3-14

ALM


Alarm and answer signal input/output


and 3 (NC)No. 1 transmitter alarm output*3

Between Between





and 6 (NC) No. 2 transmitter alarm output*

3

Between Between





and 9 (NC)No. 1 receiver alarm output*3

Between Between




Pins 10 (COM), 11 (NO)and 12 (NC)

No. 2 receiver alarm output*3Between Between




Pins 14 Buzzer signal output

Note: The terminal is used as an input terminal of buzzersignal for the back-to-back station.

Pins 15 Buzzer signal input

Note: The terminal is used as an input terminal of buzzer

signal for the back-to-back station.Pins 20 (COM), 21 (NO)

and 22 (NC)BER alarm output when BER worse than 10-6/10-5/10-4/10-3

(selectable)*3

Between Between







48/117


3-15


and 25 (NC)Maintenance alarm output*3

Between Between




Pins 26 (COM), 27

(No. 2) and 28 (No. 1)

Switching answer signal output for transmitter

Between Between


No. 1 CH selection : Open ClosedNo. 2 CH selection : Closed Open

Pins 29 (COM), 30

(No. 2) and 31 (No. 1)

Switching answer signal output for receiver

Between Between


No. 1 CH selection : Open Closed

No. 2 CH selection : Closed Open

Note:*3 The BER threshold values and alarm items are set infactory (default). To change the setting of alarm itemsby the PC, refer to Section 3.4.1 "Alarm Table" of this

Manual.

AUX ALM


Transmission network surveillance auxiliary

Note: When an optional PM CARD module is mounted, following input/output terminals (Pins 1 to 21) areused as housekeeping alarm/control interface.

Pin 1 Input 11

Pin 2 (G) Input 12

Pin 3 Input 21

Pin 4 (G) Input 22

Pin 5 Input 31

Pin 6 (G) Input 32

Pin 7 Input 41

Pin 8 (G) Input 42

Pin 9 Input 51

Pin 10 (G) Input 52

Pin 11 Input 61




49/117


3-16

Pin 12 (G) Input 62

Pin 13 Ground

Pin 14 Output 11

Pin 15 Output 12

Pin 16 Output 21

Pin 17 Output 22

Pin 18 Output 31

Pin 19 Output 32

Pin 20 Output 41

Pin 21 Output 42

Note: Input[ ] indicates the input of housekeeping alarm. Thefigure means that same order of tens makes the same paire.g. 11/12 forms a pair. IDU side interface uses that of

photo-coupler, the photo-coupler turns ON if pairelements contact with each other.Output[ ] indicates the output of housekeeping alarm.Figure means the same as in the Input. IDU side outputuses the relay interface.

Pins 22 and 23 Remote switching control signal input for release

Pins 22 and 24 Remote switching control signal input for No. 1 channel

No. 1 channel selection : closed

Pins 22 and 25 Remote switching control signal input for No. 2 channel

No. 2 channel selection : closed

NMS/RA


Network management system (NMS) data input/output or

remote access (RA) data input/outputNote: When the PM CARD is not mounted on the equipment,

this connector is used for Remote Access.

PM CARD RA

Pin 1 Party alarm management system RA TXD

(PAMS) TXD

Pin 2 EMS TXD/TXD+ RA GND

Pin 3 EMS RXD/TXD RA RXD




50/117


3-17

Pin 4 EMS TXDR RA RTS

Pin 5 EMS TRS/RXD+ RA CTS

Pin 6 EMS CTS/RXD

Pin 7 Ground

Pin 9 PAMS RXD

Pin 10 NMS TXD/TXD+

Pin 11 NMS RXD/TXD

Pin 12 NMS TXDR

Pin 13 NMS RTS/RXD+

Pin 14 NMS CTS/RXD

LA PORT (No. 1)

(D-sub Connector, 15 pin)

Control/monitoring signal input/output from/to the personal

computer for No. 1 channel

Pin 1 TXD

Pin 3 RXD

Pin 4 RTS

Pin 5 CTS

Pin 11 LOCAL CTS

Pin 12 LOCAL RTS

Pin 13 LOCAL RXD

Pin 15 LOCAL TXD


LA PORT (No. 2)


Control/monitoring signal input/output from/to the personal

computer for No. 2 channel

Pin 1 TXD

Pin 3 RXD

Pin 4 RTS

Pin 5 CTS

Pin 11 LOCAL CTS




51/117


3-18

Pin 12 LOCAL RTS

Pin 13 LOCAL RXD

Pin 15 LOCAL TXD


LA PORT (COMMON)


Control/monitoring signal input/output from/to personal

computer for both No. 1 and No. 2 channels

Pin 1 TXD

Pin 3 RXD

Pin 4 RTS

Pin 5 CTS

Pin 11 LOCAL CTS

Pin 12 LOCAL RTS

Pin 13 LOCAL RXD

Pin 15 LOCAL TXD


NMS LAN

(RJ45 8 pins)

Pasolink network management station (PNMS) data input/

output

Pin 1 LAN PNMS TX+

Pin 2 LAN PNMS TX

Pin 3 LAN PNMS RX+

Pin 6 LAN PNMS RX

SC LAN

(RJ45 8 pins)

DSC data for LAN

Pin 1 LAN DSC TX+

Pin 2 LAN DSC TX

Pin 3 LAN DSC RX+

Pin 6 LAN DSC RX




52/117


3-19

WS /SC LAN

(RJ45 8 pins)

Way side signal input/output

For 120 ohms balanced interface

Pin 1 (+) and Pin 2 () WS OUT

Pin 4 (+) and Pin 5 () WS IN

Pin 8 Frame Ground (G)

For 75 ohms unbalanced interface

Pin 1 and Pin 8 (G) WS OUT

Pin 4 and Pin 8 (G) WS IN

Note: Available if WS INTFC is equipped.Disable when SC LAN INTFC is equipped.

WS /SC LAN

(RJ45 8 pins)

DSC data for LAN

Pin 1 LAN DSC TX+

Pin 2 LAN DSC TX

Pin 3 LAN DSC RX+

Pin 6 LAN DSC RX

Note: Available when SC LAN INTFC is equipped. Disabled when ALM INTFC, ASC INTFC or DSCINTFC 64K is used.

SELV (LINE IN)

(Molex M5557-4R Connector, 4

Pins)

-20 V to -60 V DC or +20 V to +60 V DC power input


Pin 1 0 V*4 (or +48 V*5)

Pin 2 48 V*4 (or 0 V*5)

Note: *4 20 V to 60 V DC power input.

*5 +20 V to +60 V DC power input.

FG Frame ground




53/117


3-20

3.2 Controls, Indicators and Test Jacks

The controls and indicators and test jacks on the IDU (see Fig. 3-3) aredescribed as follows.

IDU indicator

Lights when:

Input data stream of CH ( ) from DTE is lost,

AIS (all 1) signal of CH ( ) is received from DTE (selectable),

TX/RX clock synchronization is lost at the DPU section,

If a 2 MB is fed to a CH which is selected as "Not Used"(selectable),

If a 2 MB is fed to the WS CH after setting to "Not Used"(selectable),

AIS signal of CH ( ) is sent (depending on system requirement)(selectable),

Bipolar output pulse of CH ( ) is lost at the INTFC section,

Carrier synchronization is lost at the DEM section,

High bit error rate (High BER) is worse than preset value (1x10-3)at the DPU section,

BER is worse than preset value at the DPU section (1x10-3,1x10-4, 1x10-5 or 1x10-6, selectable),

Frame synchronization is lost at the DPU section,

ATPC MAX PWR alarm condition,

VCO synchronization is lost at the MOD section,

Output data stream or master clock signal is lost at the DPU(TX)

section,

ODU indicator

Lights when:

Transmit RF power decreases 3 dB from normal at the ODU,

Receiver input level decreases by a preset value from squelch levelat the ODU,

APC loop of local oscillator unlocks at the ODU or,

IF signal from the IDU is lost at the ODU,


54/117


3-21

MAINT indicator

Lights when the following conditions are controlled by the PC:

Maintenance condition,

Loopback condition,

BER AIS condition,

MOD CW condition,

MUTE (TX output power) condition,

PWR switch:

Turns input DC power on or off.

PWR indicator:

Lights when equipment is in normal operation.

RESET switch:

RESET switch initiates the CPU operation.

CALL switch:

Transmits calling signal on engineering orderwire (EOW). Then, buzzerin opposite station rings.

EOW jack:

Gives access to EOW signal immediately when headset is connected.

100M indicator:

Lights when 100 Mbps is selected in data speed of LAN interface.Goes out when 10 Mbps is selected in data speed of LAN interface.

LINK/ACT indicator:

Lights when the IDU and associated equipment are linked.

COLX/DUPLEX indicator:

Lights when :

The input/output LAN signal is in Full Duplex mode,

When the LAN signal in Half Duplex mode, a collisioncondition occurs.


55/117


3-22

TX ALM 1 indicator (Only for 1+1 system):

Lights when:

Transmitter RF output power decreases 3 dB from normal at theNo. 1 channel ODU,

APC loop of the local oscillator unlocks or IF signal from the IDUis lost at the No. 1 channel ODU,

Output data stream or master clock signal is lost at the No. 1channel DPU (TX),

VCO synchronization is lost at the No. 1 channel MOD,

If a 2 MB is fed to a CH which is selected as "Not Used"(selectable) at the No. 1 channel IDU,

If a 2 MB is fed to the WS CH after setting to "Not Used"(selectable) at the No. 1 channel IDU,

Communication between CPU of No. 1 channel ODU and CPU onthe IDU is lost.

TX ALM 2 indicator (Only for 1+1 system)

Lights when:

Transmitter RF output power decreases 3 dB from normal at theNo. 2 channel ODU,

APC loop of the local oscillator unlocks or IF signal from the IDUis lost at the No. 2 channel ODU,

Output data stream or master clock signal is lost at the No. 2channel DPU (TX),

VCO synchronization is lost at the No. 2 channel MOD,

If a 2 MB is fed to a CH which is selected as "Not Used"(selectable) at the No. 2 channel IDU,

If a 2 MB is fed to the WS CH after setting to "Not Used"(selectable) at the No. 2 channel IDU,

Communication between CPU of No. 2 channel ODU and CPU onthe IDU is lost.


56/117


3-23

RX ALM 1 indicator (Only for 1+1 system)

Lights when:

Receiver input level decreases lower than a preset value fromsquelch level at the No. 1 channel ODU,

APC loop of the local oscillator unlocks at the No. 1 channel ODU,

IF signal is lost at the No. 1 channel DEM,

High BER is worse than preset value (1 103) at the DPU,

BER is worse than preset value at the No. 1 channel DPU (1

103, 1 104, 1 105 or 1 106 selectable),

Frame synchronization is lost at the No. 1 channel DPU,

Communication between CPU of No. 1 channel ODU and CPU ofthe IDU is lost.

RX ALM 2 indicator (Only for 1+1 system)

Lights when:

Receiver input level decreases lower than a preset value from

squelch level at the No. 2 channel ODU,

APC loop of the local oscillator unlocks at the No. 2 channel ODU,

IF signal is lost at the No. 2 channel DEM,

High BER is worse than preset value (1 103) at the No. 2channel DPU,

BER is worse than preset value at the No. 2 channel DPU (1

103, 1 104, 1 105 or 1 106 selectable),

Frame synchronization is lost at the No. 2 channel DPU,

Communication between CPU of No. 2 channel ODU and CPU ofthe IDU is lost.

TX OPR 1 indicator (Only for 1+1 system):

Lights when the modulator and transmitter of No. 1 channel areselected.


57/117


3-24

TX OPR 2 indicator (Only for 1+1 system):

Lights when the modulator and transmitter of No. 2 channel areselected.

RX OPR 1 indicator (Only for 1+1 system):

Lights when the demodulator and receiver of No. 1 channel are selected.

RX OPR 2 indicator (Only for 1+1 system):

Lights when the demodulator and receiver of No. 2 channel are selected.

OPR SEL No. 1-AUTO-No. 2 switch (Only for 1+1 system)

Enables channel switching depending on the setting position inMaintenance conditions as follows:

No. 1 : Manually select No. 1 channel

AUTO : Automatic switchover control

No. 2 : Manually select No. 2 channel

Caution: Before the start of maintenance, including operation of theOPR SEL SW on the front panel of the equipment, select

the equipment to maintenance mode using the LCT.

After all operation for maintenance have been completed,perform MAINT OFF setting.

Fig. 3-3 Controls, Indicators and Test Jacks of the IDU

RESET IDUODUPWR

PASOLINK

MAINT

SELV

+

LA PORT

LA PORT

DSC/ASC LA PORTNMS/RA

CALL

OPR

FUSE (7.5A)

FUSE (7.5A)

EOW

MS LAN RX RXTXTX

OPR ALM

SELNo.1

No.2

1

2

PASOLINKRESET

RESET IDUODUPWR

PASOLINK

MAINT

SELV

+

LA PORTNMS/RA

NMS LAN

CALLRESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+

No. 1 CH

MD UNIT

SW UNIT

IDU for 1+0

No. 2 CH

MD UNIT

IDU for 1+1


58/117


3-25

3.2.1 75 ohms/120 ohms Impedance Switch

For the IDU listed in the following table, 75 ohms/unbalanced - 120 ohms /balanced impedance switching of 2 MB interface is applicable on thefront board as shown in Fig. 3-4.

Note: These switches are already set by factory setting according tocustomer requirement.

IDU

System1+0 1+1

H0091A H0161A 4 x 2MB

H0091F H0161F 2/4/8/16 x 2MB


59/117


3-26

IDU in 1+0 System

SW Unit in 1+1 System

Fig. 3-4 75 ohm-120 ohm Impedance Setting (1/2)

FRONT BOARD 2

FRONT

TOP VIEW

WARNING-43V OUTPUT

TURN OFF POWERBEFORE DISCONNECTING

IFCABLE

!

S3 S4

S1 S2

S3

FRONT BOARD 1

FRONT BOARD 2

FRONT

TOP VIEW

S3 S4

S1 S2

S3

FRONT BOARD 1

(SW UNIT)


60/117


3-27

Fig. 3-4 75 ohm-120 ohm Impedance Setting (2/2)

Switching Function Set Position Remark

Selection for 75/120ohm impedance

When the 75-ohm impedance is used,all switches are set to as follows:

Only S1 applies toH0091A/H0161A IDU(for 42 MB). S1, S2, S3and S4 apply to H0091F/H0161F IDU (for 2/4/8/162 MB).

When the 120-ohm impedance is used,

all switches are set to as follows:

When the 75-ohm impedance is used,two switches are set to as follows:

WS signal interfaceimpedance selection.

When the 120-ohm impedance is used,two switches are set to as follows:

75

120

S3

75

120

S4

CH9 CH12 CH13 CH16

75

120

S175

120

S2

CH1 CH4 CH5 CH8

75

120

75

120

Selected Position

75

120

S3

75

120

S4

CH9 CH12 CH13 CH16

75

120

S175

120

S2

CH1 CH4 CH5 CH8

75

120

75

120

75

120

S3

Selected Position

75

120

S3


61/117


3-28

3.3 Equipment Start-up and Shut-down

Procedure for equipment start-up and shut-down are described below.

3.3.1 Start-up

Caution: It is recommended that you connect the IDU to ODU afterthe TX/RX frequency setting has been set on the IDU.

This process is most important for the following ODUs thatmay be emitted TX power if you set the channel number to"0ch" which is not defined by the Radio Frequency

Assignment.

Code No. of Corresponding ODU:H0738 (7 GHz), H0739 (8 GHz), H0330 (13 GHz),H0331 (15GHz), H0332 (18GHz), H0333 (23 GHz),H0334 (26 GHz), H0335 (38 GHz)

Test Equipment and Accessories Required

Agilent 34401A Digital Multimeter (or equivalent) with Test Leads

Step Procedure

1 Check that the LINE IN voltage is between +20 V to +60 V/

20 V to 60 V with the digital multimeter, before connectingthe power connector to the IDU,


2 Turn on the POWER switch on the IDU (refer to Fig. 3-5),

Note: In 1+ 1 system,

When neither No.1 nor No.2 channel is working, first setthe OPE SEL switch to the desired (No.1 or No.2)

position and power on the selected MD Unit or set theOPE SEL switch to neutral (Auto) position and power on

both MD units.

When either No.1 or No.2 channel is working, performMAINTE ON condition with the LCT, set the OPR SELNo.1-No.2 switch on the IDU to the working channel side,then, turn on the power switch of the not workingchannel.

3 Allow equipment to warm up for at least 30 minutes.


62/117


3-29

Fig. 3-5 Front View of the IDU for Powering Up

3.3.2 Shut-down

Step Procedure

For 1+0 system

1 Turn off the POWER switch on the front of the IDU.

For 1+1 system

1 Perform the setting for MAINT ON condition with the LCT,

2 Set the OPR SEL No.1 - No.2 switch to the channel position tobe on-line,

3 Turn off the power switch on the channel of off-line.

Note: In 1+1 system, before turn off the POWER switch of No.1

or No. 2 channel, perform MAINT ON condition with theLCT.

RESET IDUODUPWR

PASOLINK

MAINT

SELV

+

LA PORT

LA PORT

DSC/ASC LA PORTNMS/RA

CALL

OPR

FUSE (7.5A)

FUSE (7.5A)

EOW

MS LANRX RXTXTX

OPR AL M

SELNo.1

No.2

1

2

PASOLINKRESET

RESET IDUODUPWR

PASOLINK

MAINT

SELV

+

LA PORTNMS/RA

NMS LAN

CALLRESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+

IDU for 1+0 System

IDU for 1+1 System

No.1 Power Switch

No.2 Power Switch

Power Switch

OPR SEL No.1 - No.2 Switch

LINE IN Connector

LINE IN Connector

LINE IN Connector


63/117


3-30

3.4 Equipment Setting and Monitoring

Test Equipment and Accessories Required

Personal Computer RS-232C cable Screw Driver

The control of the IDU and ODU digital radio system can be carried outvia the LA PORT or NMS/RA of the IDU. Connect a Personal Computerto the IDU with an RS-232C cable. The specifications of the requiredcommunication port condition of the personal computer are listed below.

Baud rate : 9600

Data Length : 8

Parity Check : None

Stop bit : 2

Flow control: None

Emulation : VT100 Video Terminal

Transmission:HyperTerminal*: Send line ends with line feeds : Yes

Local echo : No

Receiving: CR : NoReturn on the right edge : YesForce incoming data to 7-bit ASCII : No

Notes: 1. HyperTerminal : Microsoft* For Windows 95/98/Me/NT4.0/2000/XP

2. When Windows NT4.0 and HyperTerminal is used,Program Download function is not available.

In this case, please use other terminal software.(e.g. TeraTerm Pro 2.3:http://hp.vector.co.jp/authors/VA002416/teraterm.html)


64/117


3-31

The pin assignment is shown in Fig. 3-6. The cable length of RS-232C

between the personal computer and IDU equipment shall be less than 15m.

Interface Terminal (9 pin - 15 pin)

Fig. 3-6 RS-232C Cable Pin Assignment

3.4.1 Controls of IDU

The setting of each item for the IDU is performed by the PC as follows:

Caution: When login is not possible, check if settings of thecommunication format are proper.

Caution: Do not turn on the power of the IDU leaving cableconnection between the PC and RA PORT of the IDU.

Step Procedure

1 Connect the personal computer (PC) to the LA PORT or NMS/

RA terminal of the IDU using an RS-232C cable as shown inFig. 3-7,

IDU SIDE

LA PORT/NMS/RA CONNECTOR

SIGNAL

NAME

PIN

No.

2

5

4

3

1

GND

CTS

RTS

RXD

TXD

PERSONAL COMPUTER SIDE

SIGNAL

NAME

PIN

No.

5

4

6

7

8

3

2

GND

DTR

DSR

RTS

CTS

TXD

RXD

D-SUB CONNECTOR (9 PIN) D-SUB CONNECTOR (15 PIN)(BLACK)


65/117


3-32

Note: When the controlling or setting of own station are performed,connect the cable to the LA PORT. When the controlling orsetting of opposite station are performed, connect the cable to the

NMS/RA port. But, if the following cases are applied, the NMS/RA terminal can not be used.

When the PM CARDs are mounted on Local and Remoteequipment.

When BER is degraded.

Fig. 3-7 Equipment and Monitoring Setup

Step Procedure

Note: The keys, 0 to 9 are used for selection of the menuor entering values. Enter key is used for confirmationof entering values. Esc key is used for cancellation of

entering values and display the higher rank menu.

2 Turn on the power on the PC. Then, start the communicationsoftware (e.g. HyperTerminal),

Note: At the end of LCT operation log out from LCT menu bykeying "99" and then exit from the communicationsoftware. In case if you have exit from the communicationsoftware without logging out from LCT, repeat connectingand disconnecting of the RS 232C cable once to reset.

3 Press the CTRL and D keys at the same time,

PERSONAL COMPUTER

IDU

RS-232CCABLE(BLACK)

CALLRESET

MAINT

IDUODU

SELV

PWR

FUSE (7.5A)

EOW PASOLINK

+

LA PORTNMS/RA

RESET IDUODUPWR

PASOLINK

MAINT

SELV

+

LA PORT

LA PORT

LA PORTNMS/RA

CALL

OPR

FUSE (7.5A)

FUSE (7.5A)

EOW

RX RXTXTX

OPR ALM

SELNo.1

No.2

1

2

PASOLINKRESET

RESET IDUODUPWR

PASOLINK

MAINT

SELV

+

IDU


66/117


3-33

Step Procedure

4 Enter the specified password from the keyboard and press theEnter key,

Note: When the PC is connected to the NMS/RA terminal tocontrol the opposite station, enter password of theopposite station.

5 Press the 0 key and Enter key. Then, perform step 8. If thepassword should be changed, press the 1 key and Enter key,

6 Enter the new password from the keyboard and press theEnter key,

Note: For password, 0 to 9, A to Z and a to zare available (31 letters maximum).

7 To confirm the password, re-enter the password from thekeyboard and press the Enter key,

8 Following menu item is displayed,

Password :

Password :*********Change Password? (no:0 / yes:1) :

Password :*********Change Password? (no:0 / yes:1) :1New Password :

Password :*********Change Password? (no:0/yes:1) :1

New Password :**********New Password (Re-enter) :**********

1. Setting

2. Maintenance

3. Monitoring

99. Exit

Select function No. :


67/117


3-34

Step Procedure

9 Press the 1 key and Enter key, then, following setting menuis displayed,

Notes: 1. In item No. 1, the required bit rate is indicated in theparenthesis ( ) on Bit rate.

Bit rate 2x2MB / 4x2MB / 8x2MB / 16x2MBChanging the bit rate will cause temporarycommunication loss until the bit rate of the oppositesite is changed. The buzzer may be issued until then.

2. In item No. 2 and item No. 3, setting for alarmindication of AIS RCVD/AIS SEND as follows,alarm: to include ALARM LED indication item,status: to exclude ALARM LED indication item.

3. In item No. 4, both channel numbers are indicated as No.1: *ch / No.2: *ch if twin path configuration isselected.

4. In item No. 5 shows in case of MTPC system,TX power ctrl (ATPC) *1 orTX power ctrl (No. 1: ATPC / No. 2: ATPC)*2 isindicated.

In case of ATPC system,Note: *1 1+0 or Hot standby system.

*2 Twin path system.

5. In item No. 6, following significant symbol letters areused to display the status for each channel.

# : signifies E1 channel which is inhibited by thehardware restrictio

1 mdp-[ ]mb-[ ] equipment description 44885amdp

Documents