Arbor Technology EPC-20X0-2610UE, User Manual

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The Engine of EPC-2020/2030-2610UE
COM B: RS-232/RS-422/RS-485 Serial Port Connectors (2)
Connector type: Double stacked D-Sub 9-pin male.
Pin Description Pin Description
1 5
9 6
1 5
9 6
COM4
COM3
6 DSR# 1 DCD#
7 RTS# 2 RXD
8 CTS# 3 TXD
9 RI# 4 DTR#
5 GND
COM B (RS-422/485) PIN OUT
Pin Description (RS-422) Pin Description (RS-485)
1 TXD- 1 DATA-
2 TXD+ 2 DATA+
3 RXD+ 3 NC
4 RXD- 4 NC
5 GND 5 GND
6 NC 6 NC
7 NC 7 NC
8 NC 8 NC
9 NC 9 NC
2.2.3 Pin Assignments for Connectors
COM A: RS-232 Serial Port Connector (1)
Connector type: Double stacked D-Sub 9-pin male.
Pin Description Pin Description
1 5
9 6
1 5
9 6
COM2
COM1
6 DSR# 1 DCD#
7 RTS# 2 RXD
8 CTS# 3 TXD
9 RI# 4 DTR#
5 GND