IEI Integration NANO-945GSE2 - Manual (Page 48)

NANO-945GSE2
Page 34
Figure 3-19: COM2 and COM4 Connector Pinout Locations
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 Data Carrier Direct (DCD) 2 Data Set Ready (DSR)
3 Receive Data (RXD) 4 Request To Send (RTS)
5 Transmit Data (TXD) 6 Clear To Send (CTS)
7 Data Terminal Ready (DTR) 8 Ring Indicator (RI)
9 Ground (GND) 10 N/C
Table 3-20: COM Connector Pinouts
3.3.18 Serial Port Connector (COM3) (RS-232, RS-422 or RS-485)
CN Label: COM3
CN Type: 10-pin header (2x5)
CN Location: See Figure 3-20
CN Pinouts: See Table 3-21
The 10-pin serial port connector connects to a COM3 serial communications channel.
COM3 is a multifunction channel. In default mode COM3 is an RS-232 serial
communication channel, but can be configured as either an RS-422 or RS-485 serial
communications channel with the COM3 function select jumper.