IEI Integration PICOe-PV-D4251_N4551_D5251 v1.00 - Manual (Page 42)

PICOe-PV-D4251/N4551/D5251 User Manual
Page 28
Pin Description Pin Description
9 GND 10 N/C
Table 3-15: COM Connector Pinouts
3.2.14 Serial Port Connector (RS-232/422/485)
CN Label: COM3
CN Type: 14-pin header (2x7)
CN Location: See Figure 3-16
CN Pinouts: See Table 3-16
Used for RS-232/422/485 communications.
Figure 3-16: Serial Port Connector Location
Pin Description Pin Description
1 DCD 2 DSR2
3 RXD 4 RTS2
5 TXD 6 CTS2
7 DTR 8 RI2
9 GND 10 N/A
11 RS422 TX2/485+ 12 RS422 TX2/485-
13 RS422 RX2+ 14 RS422 RX2-
Table 3-16: Serial Port Connector Pinouts