V.35 Synchronous Cable Wiring - Winchester Connectors

V.35 wiring allows concentrators to be installed in remote locations and connected to the host adapter via V.35 DSUs/CSUs, frame relay adapters, fractional T1s or ISDN terminal adapters.

Host Adapter to Local V.35 Device

C/X or EPC/X
Host Adapter
(HD-15 Male)
 
Local
V.35 Device
(V.35 Male)
Signal
Pin
Pin
Signal
RxD-
1
Connected to
R
RxD-A
RxD+
2
Connected to
T
RxD-B
RxC-
4
Connected to
V
SCR-A
RxC+
5
Connected to
X
SCR-B
TxD-
6
Connected to
P
TxD-A
TxD+
7
Connected to
S
TxD-B
TxC-
9
Connected to
Y
SCT-A
TxC+
10
Connected to
AA
SCT-B
GND
12
Connected (via shield) to
B
GND

Jumpered at V.35 End
C, D
RTS, CTS

Modem to Concentrator

Remote
V.35 Device
(V.35 Male)
 
Concentrator
"Host Adapter" Port
(HD-15 Female)
Signal
Pin
Pin
Signal
RxD-A
R
Connected to
6
RxD-
RxD-B
T
Connected to
7
RxD+
SCR-A
V
Connected to
9
RxC-
SCR-B
X
Connected to
10
RxC+
TxD-A
P
Connected to
1
TxD-
TxD-B
S
Connected to
2
TxD+
SCT-A
Y
Connected to
4
TxC-
SCT-B
AA
Connected to
5
TxC+
GND
B
Connected (via shield) to
12
GND
RTS, CTS
C, D

Jumpered at V.35 End