User manual

Titan/cPCI User’s Manual, Connect Tech Inc.
Revision 1.01 15
Table 2: DB-37 cable connector pinouts
Pin
No.
Port
No.
RS-232
Signal Direction
RS-422/485
Signal Direction
1 1 SG signal gnd SR signal ref
2 1 DTR output TxD- output
3 1 TxD output TxD+ output
4 1 RxD input RxD- input
5 1 DCD input RxD+ input
6 unused unused
7 3 RI input RTS- output
8 3 CTS input CTS+ input
9 3 RTS output RTS+ output
10 3 DSR
or +5V or +12V **
input CTS- input
11 4 RI input RTS- output
12 4 CTS input CTS+ input
13 4 RTS output RTS+ output
14 4 DSR
or +5V or +12V **
input CTS- input
15 2 SG signal gnd SR signal ref
16 2 DTR output TxD- output
17 2 TxD output TxD+ output
18 2 RxD input RxD- input
19 2 DCD input RxD+ input
20 1 RI input RTS- output
21 1 CTS input CTS+ input
22 1 RTS output RTS+ output
23 1 DSR
or +5V or +12V **
input CTS- input
24 3 SG signal gnd SR signal ref
25 3 DTR output TxD- output
26 3 TxD output TxD+ output
27 3 RxD input RxD- input
28 3 DCD input RxD+ input
29 4 SG signal gnd SR signal ref
30 4 DTR output TxD- output
31 4 TxD output TxD+ output
32 4 RxD input RxD- input
33 4 DCD input RxD+ input
34 2 RI input RTS- output
35 2 CTS input CTS+ input
36 2 RTS output RTS+ output
37 2 DSR
or +5V or +12V **
input CTS- input
** This option is jumper selectable on the
Titan/cPCI Rear I/O adapters only.
Cable Part Number: CAB04DX