IEI Technology WAFER-8523, User Manual

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WAFER-8523 User Manual
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4.3.13 Serial Port Connector (COM2)
CN Label: CN12
CN Type: 14-pin header (2x7)
CN Location: See Figure 4-15
CN Pinouts: See Table 4-16
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 4-15: 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 12 TXD485#
13 14 RXD485#
Table 4-16: COM2 Connector Pinouts