IEI Integration IMB-G41A - Manual (Page 48)

IMB-G41A Micro-ATX Motherboard
Page 36
3.2.17 Serial Port Connector, RS-232/422/485
CN Label: COM2
CN Type: 14-pin header (2x7)
CN Location: See Figure 3-18
CN Pinouts: See Table 3-17
Used for RS-232/422/485 communications.
Figure 3-18: Serial Port Connector Location
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 DCD 2 DSR
3 RXD 4 RTS
5 TXD 6 CTS
7 DTR 8 RI
9 GND 10 N/C
11 TXD485+ 12 TXD485-
13 RXD485+ 14 RXD485-
Table 3-17: Serial Port Connector Pinouts