IEI Integration PICOe-PV-D4251_N4551_D5251 v1.10 - Manual (Page 42)

PICOe-PV-D4251/N4551/D5251 User Manual
Page 28
CN Location: See
795H
Figure 3-16
CN Pinouts: See
796H
Table 3-16
The 10-pin serial port connectors provide three RS-232 serial communications channels.
The COM serial port connectors can be connected to external RS-232 serial port devices.
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.