IEI Integration NOVA-PV-D4251_D5251 v1.10 - Manual (Page 69)

NOVA-PV-D5251/D4251 5.25" SBC
Page 53
Pin DESCRIPTION Pin DESCRIPTION
9 GND 10 GND
11 TXD422+/TXD485+ 12 TXD422-/TXD485-
13 RXD422+ 14 RXD422-
Table 3-27: Serial Port Connector Pinouts
3.2.26 SMBus Connector
CN Label: CN3
CN Type: 4-pin wafer (1x4)
CN Location: See Figure 3-28
CN Pinouts: See Table 3-28
The SMBus (System Management Bus) connector provides low-speed system
management communications.
Figure 3-28: SMBus Connector Location
Pin Description
1 GND
2 SMB_DATA