IEI Integration WAFER-945GSE2 v1.03 - Manual (Page 68)

WAFER-945GSE2 User Manual
Page 51
4.3.16 Serial Port Connector (COM2 ) (RS-232, RS-422 or RS-485)
CN Label: COM2
CN Type: 14-pin header (2x7)
CN Location: See Figure 4-18
CN Pinouts: See Table 4-19
The 14-pin serial port connector connects to the COM2 serial communications channels.
COM2 is a multifunction channel. In default mode COM2 is an RS-232 serial
communication channel but, with the COM2 function select jumper, can be configured as
either an RS-422 or RS-485 serial communications channel.
Figure 4-18: COM2 Connector Pinout Locations
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 DATA CARRIER DETECT (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 GND 10 N/C
11 TXD485+ 12 TXD485#
13 RXD485+ 14 RXD485#
Table 4-19: COM2 Connector Pinouts