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ACCULINK 317x E1 DSU/CSU
D-12 December 1996 3170-A2-GB20-20
EIA 530A-to-X.21
Cable Interface
The EIA 530A-to-X.21 adapter cable (Figure D-7)
provides the X.21 interface shown in Table D-8.
2
14
3
16
17
9
4
19
8
10
7
24
11
2
9
4
11
6
13
3
10
5
12
8
7
14
TD-A
TD-B
RD-A
RD-B
RXC-A
RXC-B
RTS-A
RTS-B
RLSD-A
RLSD-B
SIG. COMMON
TT-A
TT-B
TD-A
TD-B
RD-A
RD-B
RXC-A
RXC-B
RTS-A
RTS-B
RLSD-A
RLSD-B
SIG. COMMON
TT-A
TT-B
530
SIGNAL
DB25
PLUG
DB15
SOCKET
X.21
SIGNAL
495-1478
7
Figure D-7. EIA 530A-to-X.21 Cable