User Guide

9
MICROPHONE UNIT
(PR086)
Features
Detect LED : This led illuminates as the unit responds to audio detection
(primarily used for commissioning)
Live LED : This led is illuminated when the AV Unit is in "listen in" mode and
cannot be disabled by the user.
Connections
0V, Out, 12V : connected to 0V, Audio in and 12V of Audio channel of AV Unit
Active Input : connected to "SW WHEN LIVE" terminals of AV Unit.
note : failure to make this connection will invalidate the approval status of this unit
Tamper : connected in series with security system tamper loop.
Note : The Microphone Unit is not adjustable. The "Gain" of each unit has been factory set.
It is therefore important that the location of each unit to be installed is carefully considered such
that it provides the optimum performance.
Specification
Operating Voltage : 9 to 15V d.c.
Operating Temperature : 0 - 40 deg.C
Quiescent Current (Leds off) : 5mA (nominal)
Quiescent Current (Leds on) : 15mA (nominal)
Tamper (Clean contacts) : rating 50mA (at 12V d.c.)
Microphone : Omni- directional
Frequency Range : 50Hz - 10KHz
Dimensions : 55 x 65 x 50mm
Weight : 50g