IEI Integration WAFER-945GSE v2.01 - Manual (Page 46)

WAFER-945GSE 3.5" Motherboard
Page 31
Pin Description Pin Description
13 RECEIVE DATA (RXD4) 14 REQUEST TO SEND (RTS4)
15 TRANSMIT DATA (TXD4) 16 CLEAR TO SEND (CTS4)
17 DATA TERMINAL READY (DTR4) 18 RING INDICATOR (RI4)
19 GND 20 GND
21 DATA CARRIER DETECT (DCD5) 22 DATA SET READY (DSR5)
23 RECEIVE DATA (RXD5) 24 REQUEST TO SEND (RTS5)
25 TRANSMIT DATA (TXD5) 26 CLEAR TO SEND (CTS5)
27 DATA TERMINAL READY (DTR5) 28 RING INDICATOR (RI5)
29 GND 30 GND
31 DATA CARRIER DETECT (DCD6 32 DATA SET READY (DSR6)
33 RECEIVE DATA (RXD6) 34 REQUEST TO SEND (RTS6)
35 TRANSMIT DATA (TXD6 36 CLEAR TO SEND (CTS6)
37 DATA TERMINAL READY (DTR6 38 RING INDICATOR (RI6)
39 GND 40 GND
Table 3-17: COM3 to COM6 Connector Pinouts
3.2.16 Serial Port Connector, RS-232/422/485
CN Label: COM2
CN Type: 14-pin header
CN Location: See Figure 3-17
CN Pinouts: See Table 3-18
The 14-pin serial port connector connects to the COM2 serial communications channels.
COM2 is a multi function 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.