Advantech PCI Series User Manual page 50

Table 5.8: PCI-1612B/C Female DB37 (Bracket)
Pin RS-232
1 -
2 3_DCD
3 3_GND
4 3_CTS
5 3_RxD
6 4_RI
7 4_DTR
8 4_DSR
9 4_RTS
10 4_TxD
11 2_DCD
12 2_GND
13 2_CTS
14 2_RxD
15 1_RI
16 1_DTR
17 1_DSR
18 1_RTS
19 1_TxD
PCI Communication User Manual
RS-422 RS-485 Pin
- - 20
3_TxD- 3_Data- 21
3_GND 3_GND 22
3_CTS+ - 23
3_TxD+ 3_Data+ 24
4_CTS- - 25
4_RxD- - 26
4_RTS- - 27
4_RTS+ - 28
4_RxD+ - 29
2_TxD- 2_Data- 30
2_GND 2_GND 31
2_CTS+ 32
2_TxD+ 2_Data+ 33
1_CTS- - 34
1_RxD- - 35
1_RTS- - 36
1_RTS+ - 37
1_RxD+ + -
40
RS-232 RS-422 RS-485
3_RI 3_CTS- -
3_DTR 3_RxD- -
3_DSR 3_RTS- -
3_RTS 3_RTS+ -
3_TxD 3_RxD+ -
4_DCD 4_TxD- 4_Data-
4_GND 4_GND 4_GND
4_CTS 4_CTS+ -
4_RxD 4_TxD+ 4_Data+
2_RI 2_CTS- -
2_DTR 2_RxD- -
2_DSR 2_RTS- -
2_RTS 2_RTS+ -
2_TxD 2_RxD+ -
1_DCD 1_TxD- 1_Data-
1_GND 1_GND 1_GND
1_CTS 1_CTS+ -
1_RxD 1_TxD+ 1_Data+
- - -