ASL INTERCOM SMC02G Product Manual page 7

1
Microphone
•
SMC02G and SMC02GS:
Gooseneck microphone
•
SMC02F and SMC02FS:
Fist microphone with integral Push To Talk button
2
SPEECH LEVEL METER
A LED bargraph speech level meter where the LEDs light in turn to indicate the sound pressure
being received at the microphone. This meter is annotated to indicate the correct speaking
level. The meter operates continuously, to allow the operator to 'practice' achieving the correct
level before making a broadcast.
3
PA LISTEN-IN VOLUME SWITCH
This switch controls the volume of the listen-in audio from the microphone's listen-in speaker.
4
PA LISTEN-IN LED (green)
Illuminates while the listen-in mode is active.
Note that normal paging is not possible while listen-in is active.
PA LISTEN-IN LED SWITCH
Pressing this switch once will activate the listen-in function, such that all active audio from all
zones in the system is mixed and output from the microphone's listen-in speaker.
Pressing this switch while holding down a zone select button will cause only that zone to be fed
to the listen-in speaker. Pressing subsequent zone buttons will add their audio to the mix. Re-
pressing buttons will de-select their zones from the mix.
Pressing the listen-in switch a second time will cancel the listen-in function.
5
BUSY LED (red)
One BUSY indicator LED is located adjacent to each of the ZONE SELECT BUTTTONS, and
when lit they indicates that the zone (or one or more of the group of zones) addressed by the
button is already in use by another input. This microphone can only select the zone if the other
input is of a lower priority.
If a higher priority input selects a zone during a paging announcement from the SMC02, then
the zone will be deselected for the SMC02, and the BUSY LED will illuminate. The
announcement will however continue to any other zones if the SMC02 is broadcasting to a
group of zones.
6
SELECT LED (green)
One SELECT indicator LED is located adjacent to each of the ZONE SELECT BUTTTONS, and
when lit they indicate that the zone (or one or more of the group of zones) controlled by that
button has been successfully selected, and is ready for use by the Microphone.
When a ZONE SELECT BUTTTON is initially pressed to select a zone the SELECT LED will
flash.
Once the Press to Talk (PTT) button is pressed and a broadcast is being made, then the
SELECT LED will stop flashing and will be steadily lit (as long as a higher priority input has not
selected the same zone).
If a higher priority input selects a zone during a paging announcement from the SMC02, then
the zone will be deselected from the SMC02 and the SELECT LED will go out. The
announcement will continue to any other zones if the SMC02 addresses a group of zones.
7
ZONE SELECT BUTTON
Selects which zone(s) will receive the paging announcement from this microphone unit. If
pressed a second time, the zone (or group of zones) will be de-selected.
Each Zone Select button can be configured to control a single zone, a group of zones, or all
zones.
SMC02G/SMC02F/Variants - Product Manual
Issue: 02 complete, approved
Page 7 of 60