Appendix A - Connector and Cable Pin Outs
13
Appendix A - Connector and Cable Pin Outs
Pin Outs for HD D-Sub Male to V.35 Male Cable
1
Unused by the V.35 interface circuitry.
2
Receive Line Signal Detect (RLSD) must be asserted by the CSU/DSU when the WAN line
is operational. The CSU/DSU should be configured to have (RLSD) follow the state of the
link.
3
Data Terminal Ready (DTR) will be asserted by the VSR V.35 circuitry when the VSR is
ready to communicate.
4
Used only when internal clocking has been selected.
V.35
DTE – DCE
Signal
A
↔
Chassis Ground
B
↔
Signal Ground
C
→
Request to Send
1
D
←
Clear to Send
1
E
←
Data Set Ready
1
F
←
Receive Line Signal Detect
2
H
→
Data Terminal Ready
3
P
→
Tx Data +
R
←
Rx Data +
S
→
Tx Data –
T
←
Rx Data –
U
→
Tx Clock Out +
4
V
←
Rx Clock In +
W
→
Tx Clock Out –
4
X
←
Rx Clock In –
Y
←
Tx Clock In +
AA
←
Tx Clock In –
