User manual

TPC-1570H User Manual 48

Appendix A Serial Port Settings

A.1 COM1/ COM3 Connector Definition

A.2 COM4 Setting

The serial port COM4 on the TPC-1570H is adjustable. It can be set to

RS-232, RS-422 or RS-485. This port is designed with auto data flow

control capability. In other word, the TPC-1570H can automatically

detect the data flow direction at this port when the two wired RS-485

communication is activated.

Note: Default is RS-485

Pin Signal

1 NDCD

2 NRX

3NTX

4 NDTR

5GND

6 NDSR

7NRTS

8 NCTS

9 NRI