IEI Technology DRPC-100, User Manual

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DRPC-100 Embedded System
Page 31
Pin Description Pin Description
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
4 DTR 9 RI
5 GND
Table 3-8: RS-232 Serial Port Pinouts
Figure 3-22:RS-232 Serial Port Pinout Location
3.8.6 RS-422/485 Serial Port Connectors
CN Label: COM3 and COM4
CN Type:
DB-9 connectors
CN Location: See Figure 1-2
CN Pinouts: See Table 3-9 and Figure 3-24
RS-422/485 serial port devices can be attached to the DB-9 ports on the front panel.
Step 1:
Locate the DB-9 connector. The locations of the DB-9 connectors are shown in
Figure 1-2.
Step 2: Insert the serial connector . Insert the DB-9 connector of a serial device into
the DB-9 connector on the external peripheral interface. See Figure 3-23 .