Nortel Networks BCM200/400 User Manual
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166
Chapter 9 Connecting the cables
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To connect the BCM system to the WAN
1
Ensure the system is powered up before connecting this cable.
2
Do one of the following:
•
To connect the WAN card using the RJ-48C connector, insert the wide area network
(WAN) cable into the RJ-48C jack on the WAN card (see
).
•
To connect the WAN card using the DB26 connector, use an adapter cable to connect the
wide area network (WAN) cable to the DB26 connector on the WAN card. These adapter
cables are available from your BCM supplier (see
).
shows the wire connections for a DB26 adapter cable.
To connect the modem
1
Ensure the system is powered up before connecting this cable.
2
Insert a PSTN line into the line jack on the modem interface (see
Warning: Do not plug the WAN or modem cables into the system unless it is running.
For maintenance shutdowns, refer to
“Performing a system shutdown” on page 239
).
Table 60 DB26 adapter cable
DB26 on
WAN card
Signal
DB26 cable
DB26 on
WAN card
Signal
DB26 cable
1
Chassis Ground
1
14
14
2
Transmit Data
2
15
Transmit Clock
15
3
Receive Data
3
16
16
4
Request to Send
4
17
Receive Clock
17
5
Clear to Send
5
18
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
9
22
22
10
10
23
23
11
11
24
External Clock
24
12
12
25
25
13
13
26