Communications Connectors (Rear Panel); Communications - Dip Switch Settings - Equinox Systems PPM3 MK2 User Manual

3.2 Communications Connectors (Rear panel)

The diagram below shows the rear panel of the PPM3 Module. Please refer to the table below for a
description of each port.
Fig. 3.2.1 PPM3 Module – Rear Panel Connectors
Key No Function
1 DC Power Input
2 DC Power Input
3 RS-232 Communications Port
4 RS-485 Input (& output)
5 RS-485 Input (& output)

3.3 Communications - DIP Switch Settings

The Communications Mode (RS-232 / RS-485) and also the Communications Node Address are
configured by setting the relevant combination of DIP Switches as detailed in the diagram below.
For RS-232 operation (default setting):
•
Set the RS-232 / RS-485 DIP Switch (5) to the ON (RS-232) position and set the Node
Address to '0'.
For RS-485 operation:
•
Set the RS-232 / RS-485 DIP Switch (5) to the OFF position and set the required Node
Address in the range 0 – 15. The address is a simple binary address with 0=ON position and
1=OFF position.
50
Further description
Jack socket
2-way Molex connector
9-way female D-connector
Input/output for RJ11 RS-485 cable
Input/output for RJ11 RS-485 cable
PPM3 MKII Programmer - User Guide - V1.04 - 10
th
May 2008