BVRAMB Ambient Noise Microphone
Installation Instructions
BVRAMB issue 4
7
C O M M U N I C A T I O N S
3 Commissioning
3.1 I
NTRODUCTION
The BVRAMB Ambient Noise Microphone permanently
monitors the Ambient noise level in a given area, however the
BVRD2M will only adjust the volume when it detects the audio
output of the relevant zone is less than -48dB.
This automatic “Busy Freeze” is used to prevent the output of the
System from being mistakenly identified as Ambient Noise.
The following procedure assumes the Operator is familiar with
the operation of the BVRD2M using either the Front Panel
controls or the Configuration Software.
3.2 ANS S
ETUP
P
ROCESS
1. Ensure no inputs are accessed or routed to the audio output
to be controlled by the ANS system.
2. Ensure the Priority Range is set correctly to include the
Priorities of the input(s) to be controlled by the ANS.
N
OTE
: If a continuous 20kHz or 30Hz surveillance tone is broadcast the
"Busy Freeze" condition will prevent the system from changing the
volume. Ensure the surveillance tone is set to "Off" or "Intermittent".
