Microphone Relative Output Gain (Var4/Var12/Var20 Only) - ASL INTERCOM SMC02G Product Manual

5.7.3

Microphone Relative Output Gain (VAR4/VAR12/VAR20 only)

Menu: Configuration System Router Inputs Mic/Line <I/P #nn – MIC/LINE nn>
Possible values:
System default configuration: '0dB'
Normally all input gains will be set to 'balance' each of the inputs, and the output gain will be set to give the
required level at each output. However, if any input is desired to have a different gain in a particular output or
outputs, then these inputs can be given a different gain relative to each appropriate output. This could be
used to e.g. avoid feedback for a microphone which is located in one of its output zones.
Ensure that the relative gain for each zone is set to the default level (0 dB).
Note that to simplify this process the Router displays the output name, and that the output names may have
been changed to zone names in the Configuration System Router Outputs menu.
For each zone associated with the SMC02 configure the Relative Output Gain as follows:
a. Disable any ANS for the zone associated with the SMC02, by setting it to 'Off':
Menu: Configuration System Router Outputs <O/P #yy – OUTPUT yy> ANS
Where yy is the output number and the OUTPUT yy is the output name, which may have been changed
to zone names.
Consult the system design documentation for zones associated with the SMC02.
b. Ensure that the Night Time Volume Control is inactive, by setting it to 'Off':
Menu: Configuration System Router Noise Off
c. Ensure that all Volume Controls are set to maximum volume, i.e., control at position '11'.
d. Make broadcasts from the SMC02 microphone and confirm that they are free of acoustic feedback, and
is playing at the required volume level.
e. If feedback is encountered, reduce the Relative Gain for the associated zone until the feedback is
eliminated.
VAR4/12/20 Menu: Configuration System Router Inputs Mic/Line <I/P #nn – MIC/LINE nn>
ACU/VAR8 Menu: Configuration System Router Inputs Mic/Line <I/P #nn – MIC/LINE nn>
f. Re-enable any ANS for the zone associated with the SMC02, by setting it to 'On':
Menu: Configuration System Router Outputs <O/P #yy – OUTPUT yy> ANS
g. If required, activate the Night Time Volume Control, by setting it to 'On':
Menu: Configuration System Router Noise On
h. Set all Volume Controls to the required volume.
SMC02G/SMC02F/Variants - Product Manual
<Zoned Fire Microphone or Paging Microphone> Audio Gain O/pGains
–40dB to 0dB (1dB steps)
<Zoned Fire Microphone or Paging Microphone> Audio Gain O/pGains
<Zoned Fire Microphone or Paging Microphone> Audio Gain Output
Issue: 02 complete, approved
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