IEI Integration IMB-Q670 v3.01 - Manual (Page 47)

IMB-Q670 Micro-ATX Motherboard
Page 33
Figure 3-16: Serial Port Connector Location
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 RXD422- 2 RXD422+
3 TXD422+/TXD485+ 4 TXD422-/TXD485-
Table 3-16: Serial Port Connector Pinouts
Use the optional RS-422/485 cable to connect to a serial device. The pinouts of the DB-9
connector are listed below.
RS-422 Pinouts RS-485 Pinouts
Table 3-17: DB-9 RS-422/485 Pinouts
3.2.16 Serial Port Connectors, RS-232
CN Label: COM2_3_5_6, COM7-10
CN Type: 40-pin box header (2x20)