IEI Integration PICOe-PV-D4251_N4551_D5251 v1.11 - Manual (Page 44)

PICOe-PV-D4251/N4551/D5251 User Manual
Page 30
Figure 3-17: Serial Port Connector Location
Pin Description Pin Description
1 DCD 2 DSR2
3 RXD 4 RTS2
5 TXD 6 CTS2
7 DTR 8 RI2
9 GND 10 N/A
11 RS422 TX2/485+ 12 RS422 TX2/485-
13 RS422 RX2+ 14 RS422 RX2-
Table 3-17: Serial Port Connector Pinouts
3.2.16 SMBus Connector
CN Label: CN1
CN Type: 4-pin wafer (1x4)
CN Location: See Figure 3-18
CN Pinouts: See Table 3-18
The SMBus Connector provides a connection to a SMBus (System Management Bus)
device.