Installing the cards – Nortel Networks BCM200/400 User Manual
Page 168
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168
Chapter 9 Connecting the cables
N0060612
N0060612
shows the wire connections for a DB15 X.21 adapter cable.
Installing the cards
“Replacing data cards and processing hardware” on page 307
installation process for these cards.
Table 63 DB15 X.21 adapter cable
DB26 on
WAN card
Signal
DB15
X.21 cable
DB26 on
WAN card
Signal
DB15
X.21 cable
1
Chassis Ground
1
14
Transmit Data B
9
2
Transmit Data A
2
15
3
Receive Data A
4
16
Receive Data B
11
4
Request to Send A 3
17
Receive Clock A
6
5
Clear to Send A
5
18
6
19
Request To Send B
10
7
Signal Ground
8
20
8
21
9
Receive Clock B
13
22
10
23
11
External Clock B
14
24
External Clock A
7
12
25
13
Clear To Send B
12
26
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