To Connect The Bcm System To The Wan; To Connect The Modem - Nortel BCM200 Installation And Maintenance Manual

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
Table 58 shows the wire connections for a DB26 adapter cable.
Table 58 DB26 adapter cable
DB26 on
WAN card Signal
1 Chassis Ground
2 Transmit Data
3 Receive Data
4 Request to Send
5 Clear to Send
6 Data Set Ready
7 Signal Ground/
Common Return
8 Data Carrier Detect
9
10
11
12
13

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
Table 59 shows the wire connections for a RS-422/EIA 530 cable.
Table 59 RS-422/EIA 530 adapter cable (Sheet 1 of 2)
DB26 on
WAN card Signal
1 Protective Ground
2 Transmit Data A
DB26 cable
1
2
3
4
5
6
7
8
9
10
11
12
13
RS-422/EIA
530 cable
1
2
BCM200/400 4.0 Installation and Maintenance Guide
Chapter 9 Connecting the cables
Figure 80 on page
Figure 80 on page
DB26 on
WAN card Signal
14
15 Transmit Clock
16
17 Receive Clock
18
19
20 Data Terminal Ready
21
22
23
24 External Clock
25
26
Figure 80 on page
DB26 on
WAN card Signal
14 Transmit Data B
15 Transmit Clock A
159
158).
158).
DB26 cable
14
15
16
17
18
19
20
21
22
23
24
25
158).
RS-422/EIA
530 cable
14
15