Serial Port Connector (Rs-232/422/485); Figure 3-17: Serial Port Connector Location (Com2); Table 3-16: Serial Port Connector Pinouts (Com2) - IEI Technology PM-PV-N4551/D5251 User Manual

3.2.15 Serial Port Connector (RS-232/422/485)

CN Label: COM2
14-pin header (2x7)
CN Type:
CN Location: See Figure 3-17
CN Pinouts: See Table 3-16
Used for RS-232/422/485 communications.

Figure 3-17: Serial Port Connector Location (COM2)

Pin Description
1 DCD
3 RXD
5 TXD
7 DTR
9 GND
11 TXD485+
13 RXD485+

Table 3-16: Serial Port Connector Pinouts (COM2)

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PM-PV-N4551/D5251 User Manual
Pin Description
2 DSR
4 RTS
6 CTS
8 RI
10 GND
12 TXD485-
14 RXD485-