Paradyne Hotwire 7975 User Manual page 108

Cables and Pin Assignments
EIA-530A-to-X.21 Interface Cable
SIG. COMMON
C-6
The EIA-530A-to-X.21 adapter cable (Figure C-3) provides the X.21 interface
shown in Table C-3.
530 DB25
SIGNAL PLUG
TD-A 2
TD-B 14
RD-A 3
RD-B 16
RXC-A 17
RXC-B 9
RTS-A 4
RTS-B 19
RLSD-A 8
RLSD-B 10
7
TT-A 24
TT-B 11
Figure C-3. EIA-530A-to-X.21 (Cable Feature Number 7900-F1-505)
December 1998
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
7975-A2-GB20-40
495-14787