Chapter 9 Starting the system 121

Table 29 shows the wire connections for a DB25 adapter cable.

Table 29 DB25 adapter cable

DB26 on

 

 

WAN card

Signal

DB25 cable

 

 

 

1

Chassis Ground

1

2

Transmit Data

2

 

 

 

3

Receive Data

3

4

Request to Send

4

 

 

 

5

Clear to Send

5

6

Data Set Ready

6

 

 

 

7

Signal Ground/

7

 

Common Return

 

8

Data Carrier Detect

8

 

 

 

9

 

9

10

 

10

 

 

 

11

 

11

12

 

12

 

 

 

13

 

13

 

 

 

DB26 on

 

 

WAN card

Signal

DB25 cable

 

 

 

14

 

14

 

 

 

15

Transmit Clock

15

16

 

16

 

 

 

17

Receive Clock

17

18

 

18

 

 

 

19

 

19

20

Data Terminal Ready

20

 

 

 

21

 

21

22

 

22

 

 

 

23

 

23

24

External Clock

24

 

 

 

25

 

25

26

 

 

 

 

 

Connect wiring to the modem card

(North American Systems only)

Modem card face

RJ45 jack

Warning: Ensure the system is powered up before connecting this cable.

To connect the modem card, insert a PSTN line into the Line jack on the modem card.

For information about the location of the modem card, refer to Figure 48 on page 119.

Note: Not all systems are equipped with a modem card.

Installation and Maintenance Guide

Page 147
Image 147
Nortel Networks BCM1000 manual Connect wiring to the modem card, DB25 adapter cable, North American Systems only