IEI Integration NANO-PV-D4251_N4551_D5251 - Manual (Page 45)

NANO-PV-D4251/N4551/D5251 EPIC SBC
Page 32
9 Ground (GND) 10 GND
Table 3-19: COM Connector Pinouts
3.2.18 Serial Port Connector (RS-232/422/485)
CN Label: COM3
CN Type: 14-pin header (2x7)
CN Location: See Figure 3-19
CN Pinouts: See Table 3-20
Used for RS-232/422/485 communications.
Figure 3-19: Serial Port Connector Location
PIN NO. DESCRIPTION PIN NO. 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 3-20: Serial Port Connector Pinouts
3.2.19 SMBus Connector
CN Label: CN1
CN Type: 4-pin wafer (1x4)
CN Location: See Figure 3-17
CN Pinouts: See Table 3-18