IEI Integration NANO-CV-D25502_N26002 - Manual (Page 41)

NANO-CV-D25502/N26002 EPIC SBC
Page 26
3.2.13 RS-422/485 Serial Port Connector
CN Label: COM4
CN Type: 4-pin wafer
CN Location: See Figure 3-14
CN Pinouts: See Table 3-15
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.
Figure 3-14: RS-422/485 Connector Location
Pin Description Pin Description
1 RXD422- 3 TXD422+/TXD485+
2 RXD422+ 4 TXD422-/TXD485-
Table 3-15: RS-422/485 Connector Pinouts