IEI Integration IMB-Q354 v1.00 - Manual (Page 87)

IMB-Q354 uATX Motherboard
Page 65
4.2.13 Serial Port Connector (COM2, COM 3 and COM4)
CN Label: COM2, COM3 and COM4
CN Type: 10-pin header (2x5)
CN Location: See Figure 4-14
CN Pinouts: See Table 4-15
The 10-pin serial port connector provides a second RS-232 serial communications
channel. The serial port connectors can be connected to external RS-232 serial port
devices.
Figure 4-14: Serial Connector Location
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 4-15: Serial Connector Pinouts