Nortel Networks BCM1000 Stereo System User Manual


 
Chapter 9 Starting the system 121
Installation and Maintenance Guide
Table 29 shows the wire connections for a DB25 adapter cable.
Connect wiring to the modem card
(North American Systems only)
Table 29 DB25 adapter cable
DB26 on
WAN card
Signal DB25 cable
DB26 on
WAN card
Signal DB25 cable
1 Chassis Ground 114 14
2Transmit Data2
15 Transmit Clock 15
3 Receive Data 316 16
4 Request to Send 4
17 Receive Clock 17
5 Clear to Send 518 18
6 Data Set Ready 6
19 19
7 Signal Ground/
Common Return
7 20 Data Terminal Ready 20
8 Data Carrier Detect 8
21 21
9 922 22
10 10
23 23
11 11 24 External Clock 24
12 12
25 25
13 13 26
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.
RJ45 jack
Modem card face