MZX Fire detection system
802SB Addressable Sounder Base
Product Information Doc. version 8.0
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802SB Addressable Sounder Base
Introduction
The 802SB Addressable Sounder Base - provides an
additional sounder function on MX addressable systems
and is LPCB approved to EN54: Pt 3 as a type ‘A’
sounder for indoor use.
The 802SB Sounder Base requires an associated detec-
tor in order to operate, as it uses the address of the
detector that is fitted to it. Removal of the detector or
loss of power to the loop will cause the sounder to
cease sounding.
The 802SB Sounder Base is designed to be fitted
between a detector and a 4" mounting flange which can
be fixed to a flat ceiling or a suitable electrical backbox
with standard 50mm fixing centres. Fig. 1 shows a gen-
eral view of the bases.
The detector must be locked onto the sounder base by
means of a detector locking device.
A maximum of 65 Sounder Bases at full volume may be
connected to the loop.
Technical specification
Mechanical characteristics
Dimensions: See Fig. 2
Weight:
– 802SB: 186 g
Materials:
– The mouldings are UL approved flame retardant
plastic and the colour matches that of the low pro-
file detector range.
– All pressings are nickel plated stainless steel.
Environmental:
– Temperature:
Operating: -25 °C to +70 °C
Storage: -40 °C to +80 °C
Humidity: Up to 96 % RH (non-condensing)
Pressure: Sounder output is quoted for atmospheric
pressure of 1000 mBar.
Vibration: Meets the requirements of EN 54-3.
Corrosion: passes the SO2 corrosion test from
EN 54-3.
EMC:
The base complies with the following:
– Product family standard EN50130-4 in respect of
Conducted Disturbances, Radiated Immunity,
Electrostatic Discharge, Fast Transients and Slow
High Energy
– EN61000-6-3 for Emissions
IP Rating: IP21C (EN 60529).
Electrical characteristics
Supply voltage
– Addressable loop voltage: 20 V-40 V dc polarity
conscious
Current consumption
– Standby: 200 μA typical
Fig. 1: 802SB Sounder Base
Fig. 2: 802SB Sounder Base with Mounting Flange Dimen-
sions
CAUTION
Ensure that site plan defines the polarity of
polarity conscious bases.
