Instruction Manual

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 — —

2DSR-L — —

3 RXD RXD- —

4 RTS-L TXD+ TXD+

5 TXD TXD- TXD-

6 CTS-L RXD+ —

7DTR-L — —

8RI-L — —

9 Ground — —

10 NC — —

Pin # RS-232

1—

2RXD

3TXD

4—

5GND

6—

7—

8—

9—

910