User`s manual

IFO2225-851 Series Panel PC User’s Manual

Hardware Installation

When COM1 is set to RS-422 or RS-485, the pin assignments are

listed below:

Signal Name

Pin #

RS-422 RS-485

1 TX- DATA-

2 TX+ DATA+

3 RX+ No connector

4 RX- No connector

5 No connector No connector

6 No connector No connector

7 No connector No connector

8 No connector No connector

9 GND GND