V.35 interface
70
Model 3088A Series User Manual
E • Interface pinouts
V.35 interface
DB-25 female connector
(DTE/DCE orientation)
E1 interface
RJ-48C female connector
Pin #
Signal
Pin #
Signal
1
Frame Ground
12
TxC-b (DTE Source)
2
TxD-a (DTE Source)
14
TxD-b (DTE Source)
3
RxD-a (DCE Source)
15
TxC-a (DCE Source)
4
RTS (DTE Source)
16
RxD-b (DCE Source)
5
CTS (DCE Source)
17
RxC-a (DCE Source)
6
DSR (DCE Source)
18
LL (DTE Source)
7
Signal Ground
20
DTR
8
CD (DCE Source)
21
RL
9
RxC-b (DCE Source)
24
ExtC-a (DTE Source)
11
ExtC-b (DTE Source)
25
TM (DCE Source)
Pin #
Signal
1
Receive (Ring)
2
Receive (Tip)
3
Shield
4
Transmit (Ring)
5
Transmit (Tip)
6
Shield
7
No connection
8
No connection