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Jamming, supervision and weak battery
The radio expansion module is able to detect various errors in the radio
components and to transmit these to the central alarm.
Jamming
Bridging the „Jamming" pin (radio interference)activates this function. A
jamming signal is a signal that transmits at the same frequency as the radio
component and that is strong enough to displace the signal from the radio
component for at least 30 seconds.
Supervision
Bridging the „Supervision" pin activates this function. The radio expansion unit
reports a detector as being faulty when it no longer receives a signal from this
detector for more than 2 hours.
Weak detector battery
If the battery power in the radio detector is weak then it reports this to the
radio expansion unit and this then passes on the report to the alarm centre.
Installation
1.
Open the housing by carefully pressing in the plastic clips at the sides.
2.
Release the 3 screws and remove the PCB from the rear wall of the
unit.
3.
Use the rear of the radio expansion unit to draw the boreholes at the
required assembly location. Bore the appropriate holes and insert the
correct dowel pins into then.
4.
Insert the cable of the 4-wire BUS through the opening on the rear of
the module.
5.
Screw the rear of the housing with the correct screws onto the required
assembly location and re-insert the PCB.
6.
Make sure that the alarm centre is disconnected from the mains.
Connect the 4-wire BUS correctly.
7.
Once more close the 8-zone expansion module.
Technical data:
Zones:
8 wireless zones
Display
2 x 7 segment display
Radio data: Operating frequency
868.6625 MHz
Bandwidth 20kHz
Range:
outdoors up to 200 m
Voltage supply:
Power consumption: max. 55mA
Dim. (WxHxD):
Weight:
12
12V
128x183x35 mm
342 g
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