User guide

PICOe-PV-D4251/N4551/D5251 User Manual
Page 29
Figure 3-16: COM Connector Pinout Locations
Pin Description Pin Description
1 DCD# 2 DSR#
3 RXD# 4 RTS#
5 TXD# 6 CTS#
7 DTR# 8 RI#
9 GND 10 N/A
Table 3-16: COM Connector Pinouts
3.2.15 Serial Port Connector (RS-232/422/485)
CN Label: COM3
CN Type:
14-pin header (2x7)
CN Location:
See
Figure 3-17
CN Pinouts:
See
Table 3-17
Used for RS-232/422/485 communications.