IEI Integration WAFER-CV-D25501_N26001 - Manual (Page 46)

WAFER-CV-D25501/N26001 3.5" Motherboard
Page 31
Figure 3-17: RS-232 Serial Port Connector Locations
Pin Description Pin Description
1 DCD 2 DSR
3 RXD 4 RTS
5 TXD 6 CTS
7 DTR 8 RI
9 GND 10 GND
Table 3-18: RS-232 Serial Port Connector Pinouts
3.2.17 RS-422/485 Serial Port Connector
CN Label: COM4
CN Type: 4-pin wafer
CN Location: See Figure 3-18
CN Pinouts: See Table 3-19
NOTE:
These pins are shared with those on the main serial port. Use either
the pins on the main connector, or on this connector, but not both.
This connector provides RS-422 or RS-485 communications.