User Manual

SharpEye

IR3 Flame Detector User Guide

42 Wiring Terminal 20/20MPI-M

A.2 Wiring Terminal 20/20MPI-M

Figure 8: Wiring Terminal 20/20MPI-M

8.5.3 RS-485 Communication Network

Using the RS-485 network capability of the IR3 detector and control

software you can connect up to 32 detectors in an addressable system with

only 4 wires (2 for power and 2 for communication). Using repeaters, the

number of detectors can be much larger (32 detectors for each repeater) up

to 247 on the same 4 wires. When using the RS-485 network, you can read

each detector status (FAULT, WARNING, ALARM) and to initiate a BIT to

each detector individually.

For more details, consult the factory.