Table of Contents

DS57U5

RS232/422/485 Assignment

RS-232 RS-422 RS-485
Bild PIN COM COM COM
1 DCD1# 422 TX - 485 -
2 SIN1 422 TX + 485 +
3 SOUT1 422 RX -
4 DTR1 422 RX +
5 GND
6 DSR1#
7 RTS1
8 CTS1#
9 RI1#

Where is COM port #1?

The first COM port is marked on this photo: