ADLINK cPCI-3970 Series - Manual (Page 60)

46 Board Interfaces
Table 4-12: cPCI-3970D/P COM1 with RS-422/485 Dongle Pin Definition
COM2 Pin Header
Table 4-13: cPCI-3970G/U COM2 Pin Header Definition
cPCI-R3P00(T) RTM Serial Ports
COM4 Connector (DB-9))
Table 4-14: cPCI-R3P00 RTM COM4 Pin Definition
Pin # RS-232 RS-422 RS-485
1 DCD-L — —
2 DSR-L — —
3 RXD RXD- —
4 RTS-L TXD+ TXD+
5 TXD TXD- TXD-
6 CTS-L RXD+ —
7 DTR-L — —
8 RI-L — —
9 Ground — —
10 NC — —
Pin # RS-232
1 —
2 RXD
3 TXD
4 —
5 GND
6 —
7 —
8 —
9 —
1 2
9 10