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Introduction
The Remote Receiver for the Iris+ is designed to extend the systems wireless coverage. This is
usually necessary where the premises to be protected occupies a large area, is spread over
many oors or is in an area which is subject to high levels of radio interference.
The Remote Receiver units are all coded to allow individual identi cation. This code number
(3-31) can be located on the rear of the unit and also internally. When adding additional
Remote Receivers to a site, the existing receiver code numbers can be viewed from the Iris
receivers menu structure. For a step by step guide to viewing the devices code numbers, refer
to
the 'Main Iris+ Receiver Software Con guration' section.
Important Note:
Before commencing the installation, check that all Receivers which are to be connected to the
Iris+ have di erent NUA code numbers from any other new / existing Remote Receivers, to ensure
correct operation.
The
Remote Receiver is hardwired to the Iris+ using screened 4 core cable. Up to 28 Remote
Receivers can be connected to the Iris+. The presence of one or more Remote Receivers is
transparent to the user.
Wiring Details
The Remote Receivers and the Iris+ must be wired together in a daisy chin style. The Iris+ can
be positioned anywhere along this cable run. Under no circumstances should the units be
wired in a star con guration. The maximum overall cable run for the RS485 Bus is 1000
metres. A block diagram showing examples of correct / incorrect Remote Receiver wiring is
shown overleaf in Figure 1.
©2018 EMS Ltd. All rights reserved.
Page 3 of 16
MK108 Iss4 27/07/2018 AJM
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