Installation manual

Installation and Replacement 3-13
Installing The Vanguard 3400 Series
DB25 V.35/V.36 Pinouts
Note
For port 1 and any 2-Port Serial Data Card after 
the 1152-10021 Cable Adapter is installed.
Pi
n Signal DCE Position
1 GND -------
2 TXD A IN
3 RXD A OUT
4 RTS IN
5 CTS OUT
6 DSR OUT
7 SIG GND -------
8 DCD OUT
14 TXD B IN
15 TXC A OUT
16 RXD B OUT
17 RXC A OUT
18 RXC B OUT
20 DTR IN
21 TXC B OUT
22 ETXC B IN
24 ETXC A IN
25 (V.36 only) TM NC
DB25 V.11/X.21 Pinouts
Note
For port 1 and any 2-Port Serial Data Card after 
the 1152-10022 Cable Adapter is installed.
Pi
n Signal DCE Position
1 GND -------
2 TXD A IN
3 RXD A OUT
4 RTS A IN
6 DCD B OUT
7 SIG GND -------
8 DCD A OUT
14 TXD B IN
15 TXC A OUT