Eia-530-A-To-X.21 Interface - Paradyne 7974 User Manual

EIA-530-A-to-X.21 Interface

The EIA-530-A-to-X.21 adapter cable
Feature Number
X.21 Cable
530
SIGNAL
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
Figure C-4.
7900-A2-GB21-20
7900-F1-504)) provides the X.21 interface shown in
Interface.
DB25
PLUG
2
14
3
16
17
9
4
19
8
10
7
24
11
EIA-530-A-to-X.21 (Cable Feature Number 7900-F1-504)
December 2001
C. Connectors, Cables, and Pin Assignments
(Figure C-4, EIA-530-A-to-X.21 (Cable
98-15883
DB15 X.21
SIGNAL
SOCKET
2 TD-A
9 TD-B
4 RD-A
11 RD-B
6 RXC-A
13 RXC-B
3 RTS-A
10 RTS-B
5 RLSD-A
12 RLSD-B
8 SIG. COMMON
7 TT-A
14 TT-B
Table C-5,
495-14787
C-7