17 smbus connector – IEI Integration NANO-HM651 User Manual
Page 44
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NANO-HM651 EPIC SBC
Page 30
Figure 3-17: Serial Port Connector Location
Pin Description
1 RXD422-
2 RXD422+
3 TXD422+/TXD485+
4 TXD422-/TXD485-
Table 3-18: 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 3-19: DB-9 RS-422/485 Pinouts
3.2.17 SMBus Connector
CN Label:
CN4
CN Type:
4-pin wafer (1x4)
CN Location:
See Figure 3-18
CN Pinouts:
See Table 3-20
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