Planning A Rf Fire Detection System With Dzw 1171 Radio Test Unit - Bosch DOW 1171 Operation Manual

Radio Frequency Fire Detection System
4.3 Planning a RF Fire Detection System with DZW 1171 Radio Test
Unit
Figure 4.8: DZW 1171 Radio Test Unit
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Bosch Sicherheitssysteme GmbH
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Module A
Module B
Switch for switching on and off
LED battery charge level display
LED radio connection display
Switch modules A and B on.
The LEDs (4) next to the switches light up if there is sufficient battery voltage. The
specified radio connection between the modules is initiated automatically and the LED on
module A flashes while the radio connection is being established. As soon as the radio
connection is set up, LED (5) on module A goes out and LED (5) on module B stays
continuously lit.
Position module A as close as possible to the RF interface module.
Connect module B to the service pole and move to the designated RF detector
installation location.
As long as the LED (5) on module B stays continuously lit, the transfer of the radio signal
is guaranteed (attenuation < 90 dB). If the LED (5) on module B starts to flash, the
maximum radio range has been reached (attenuation 85 to 89 dB); however, the radio
signal is still strong enough for fault-free operation. If the LED (5) on module B goes out,
the RF interface module or RF detector installation location is outside the radio range.
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Operation Guide
Installation/Configuration Notes | en
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2016.04 | 6.0 | 4.998.120.885
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