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Chapter 5 Business Communications Manager System Startup 133
Installation and Maintenance Guide
Connect wiring to the WAN card
Table 18 shows the wire connections for a DB25 adapter cable.
Ensure the system is powered up before connecting this cable.
To connect the WAN card using the RJ48C connector, insert the wide
area network (WAN) cable into the RJ48C jack on the WAN card.
For information about the location of the WAN card, refer to Figure 74
on page 132.
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 Business Communications Manager supplier.
Note: Not all systems are equipped with a WAN card.
Table 18 DB25 adapter cable
DB26 on
WAN card
Signal DB25 cable
DB26 on
WAN card
Signal DB25 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
RJ48c jack
WAN card face
DB26 connec-
tor (female)