Specifications

7SR242 Duobias Settings, Configuration & Instruments Guide

2.1.2 Rear RS485 connection

Figure 2-2 RS485 connection to PC

2.1.3 Optional rear fibre optic connection

Figure 2-3 Fibre Optic Connection to PC

Sigma devices have a 25 pin female D connector with the following pin out.

Pin Function

2 Transmit Data

3 Received Data

4 Request to Send

5 Clear to Send

6 Data set ready

7 Signal Ground

8 Received Line Signal Detector

20 Data Terminal Ready