Instruction Manual

44 Board Interfaces

cPCI-3970G/U Serial Ports

COM1 Connector (RJ-45)

Table 4-9: cPCI-3970G/U COM1 (RJ-45) Pin Definition

COM1 Connector with DB-9 Adapter

An RJ-45 to DB-9 adapter cable is provided to breakout the

COM1 signals.

Table 4-10: cPCI-3970G/U COM1 (DB-9 adapter) Pin Definition

NOTE:

The COM mode setting for cPCI-3970G/U models are set in

the BIOS: “cPCI-3970G COM1/ 2 Output” on page 122.

Pin # RS-232 RS-422 RS-485

1 DCD-L — —

2 RTS-L TXD+ TXD+

3DSR-L — —

4 TXD TXD- TXD-

5 RXD RXD- —

6 Ground — —

7 CTS-L RXD+ —

8DTR-L — —

9RI-L — —

Pin # RS-232 RS-422 RS-485

1 DCD-L — —

2 RXD RXD- —

3 TXD TXD- TXD-

4DSR-L — —

5 Ground — —

6DSR-L — —

7 RTS-L TXD+ TXD+

8 CTS-L RXD+ —

9———