EMS 7000 Iris+, 7258 Operating Instructions Manual
7258 UHF Remote Receiver
Operating Instructions
©2018 EMS Ltd. All rights reserved. Page 1 of 16 MK108 Iss4 27/07/2018 AJM
Contents
Introduction 3
Wiring Details 3
Tools & Test Equipment 5
Remote Receiver Positioning 5
Electrical Installation 5
Software Conguration 6
Iris+ Main Menu 6
Main Iris+ Receiver Software Conguration 7
Testing the System 9
Measuring the Background Level 9
On-site Range Testing 10
Site Testing with a Pager 10
Site Testing (Single Person) 11
Site Testing (Two Person) 12
Commissioning & Programming 13
Wiring 14
©2018 EMS Ltd. All rights reserved. Page 2 of 16 MK108 Iss4 27/07/2018 AJM
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 identication. 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 Conguration’ section.
Important Note:
Before commencing the installation, check that all Receivers which are to be connected to the
Iris+ have dierent 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 conguration. 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
Iris+
Remote Receivers
End
Of
Line
Iris+
Remote Receivers
End
Of
Line
Remote Receiver
No End Of Line
Required
Iris+
Remote
Receivers
Remote
Receivers
Figure 1
Iris+
Remote
Receivers
Remote Receiver
©2018 EMS Ltd. All rights reserved. Page 4 of 16 MK108 Iss4 27/07/2018 AJM
Tools & Test Equipment
No special test equipment is needed when installing the Remote Receiver. Only standard
hand tools are required to install and commission the wireless system. Beldon four core
screened cable is recommended for the connection between Remote Receivers and the Iris+
Receiver. It is also recommended that the Iris+ Engineers Programming Manual is available
when commissioning a remote receiver.
Remote Receiver Positioning
The maximum range between a Remote Receiver and any transmitter is dependant upon the
local environment. A range of up to 250 metres can be obtained although actual range
achieved is determined by site conditions, the quality of the receivers aerial and how well the
system has been installed.
When selecting a site for the receiver, the installing engineer should be aware that the aerial
should be as far as away from electrical / electronic equipment as possible and a minimum of
2 metres from any such equipment. The systems performance will be reduced if the aerial is
closer and will also be reduced by metal objects such as ling cabinets, pipe work, radiators
and air conditioning ducts obstructing the aerial.
Electrical Installation
The Iris+ Receiver and Remote Receivers are supplied with a connection back box and should
be wired as shown on page 14.
The Remote Receiver must NOT be used as a junction box or cable termination point for other
equipment as this will adversely eect performance of the system. Only those cables needed
to make the Remote Receiver function should be fed into the connection back box.
The Remote Receiver case must be earthed. An earthing tag is provided for this purpose. A
tag is located in the connection back box of the Iris+ Receiver. The Iris+ Receiver and Remote
Receivers require a 12Vdc supply. The 0V line should NOT be connected to the same point as
the earth case.
Ensure that the END OF BUS jumper is made on the rst and last receiver in the wiring daisy
chain (See page 4 for further details). The end of bus jumper can be found on the 2411 PCB,
located at the rear of the Iris+ and Remote Receivers door assembly. The jumper is located
top centre of the PCB.
The RS485 port is used as the Remote Receiver Bus. The maximum overall cable run is 1000
metres.
©2018 EMS Ltd. All rights reserved. Page 5 of 16 MK108 Iss4 27/07/2018 AJM
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