Figure 2.1 Vps-3100 I/O Connectors - Advantech VPS-3100 User Manual

Rear View
2.3.1.1 COM Connector
Table 2.2: COM Connector Pin Assignment Chart
RS-232
Pin Signal Name
1 DCD
2 RxD
3 TxD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
Note! NC = "no connection"
VPS-3100 User Manual

Figure 2.1 VPS-3100 I/O connectors

RS-422
Signal Name
Tx-
Tx+
Rx+
Rx-
GND
NC
NC
NC
NC
10
RS-485
Signal Name
DATA-
DATA+
NC
NC
GND
NC
NC
NC
NC