IEI Integration PCIE-Q670 v2.00 - Manual (Page 50)

PCIE-Q670 PICMG 1.3 CPU Card
Page 35
Figure 3-18: RS-422/485 Connector Location
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 RXD422- 3 TXD422+/TXD485+
2 RXD422+ 4 TXD422-/TXD485-
Table 3-18: RS-422/485Connector 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 3-19: DB-9 RS-422/485 Pinouts
3.2.18 SMBus Connector
CN Label: SMBUS_1
CN Type: 4-pin wafer
CN Location: See Figure 3-19
CN Pinouts: See Table 3-20
The SMBus (System Management Bus) connector provides low-speed system
management communications.