Installation Instructions - EMS 7703 Installation Instructions Manual

EMS SYSTEM 7000

2. Installation Instructions

Before installing the 7703 receiver read these instructions with care.
2.1 When choosing a suitable site for the 7703 consider the following:-
(a) The minimum recommended distance of metal objects or equipment from the aerial is
400mm.
(b) The minimum recommended distance to photocopiers, computers and fax machines is
2 metres.
TO BE MOUNTED AT LEAST 2m AWAY FROM OTHER
2.2 Having chosen a suitable site, place the receiver in or near its final position. Fit the special
aerial provided and connect power to the receiver as per the provided connection drawing.
On power-up the 7703 will self test. The self test will cause the internal sounder to sound for
approximately 1 second. In addition the front panel LED's will light momentarily in the
following order: Clear LED, Test LED, Power LED, Radio Interference LED, Low
Battery LED, Local LED and Alarm LED. This cycle will be repeated a number of times.
The number of repetitions determines the state of the receiver as shown in Table 1.
Cycles
3
3
1
The above sequence of events will also occur if the reset button on the receiver board is
pressed.
2.3 To check for radio interference using the integral carrier detector, turn the keyswitch to the
TEST position. The red RADIO INTERFERENCE LED will light if spurious radio signals are
present. Re-site the 7703 if necessary.
2.4 Load the serial identities of the transmitters to be used with the system, see section 4.2.
2.5 Check the signal from each transmitter can reach the receiver from their intended locations.
2m
2m
2m
2m
400mm
2m
2m 2m
2m
7703 RECEIVER
ELECTRICAL DEVICES
EEPROM OK. Clear LED steady means transmitters in memory
EEPROM OK. Clear LED flashing means no transmitter's in
memory
EEPROM failure
FIXING SURFACE / WALL
DO NOT RUN CABLE
DIRECTLY BEHIND
AERIALS
Radio Status
Table 1
7703 INSTALLATION, ISSUE V2.2 – 13/04/10
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