IEI Integration KINO-PVN-D4251_D5251 - Manual (Page 43)

KINO-PVN-D5251/D4251/ Mini ITX SBC
Page 29
Pin Description Pin Description
9 GND 10 N/C
11 TXD485+ 12 TXD485#
13 RXD485+ 14 RXD485#
Table 3-16: Serial Port (COM2) Connector Pinouts
3.2.14 SMBus Connector
CN Label: SMB1
CN Type: 4-pin wafer (1x4)
CN Location: See Figure 3-18
CN Pinouts: See Table 3-17
The SMBus Connector provides a connection to a SMBus (System Management Bus)
device.
Figure 3-18: SMBus Connector Locations
Pin Description
1 GND
2 SMBDATA
3 SMBCLK
4 VCC5
Table 3-17: SMBus Connector Pinouts