Northern Airborne Technology AA83-001 rev.4.10 - Manual (Page 30)

AA83-001 InterMUSIC™ Stereo Intercom System Manual SM09-2 Rev. 4.10
3.3
Controls and Indicators
ICS VOL (Inner)
PILOT VOX (Outer)
MUSIC VOL (Inner)
COPILOT VOX
(Outer)
Mode Switch
Annunciator
3.3.1 ICS VOL/VOX
The ICS VOL/PILOT VOX control is a fluted concentric rubber knob on the left side of
the front panel.
The inner (front) knob is the ICS VOL control, which is used to set Intercom volume. It is
at minimum volume when fully counter-clockwise (ccw). As the knob is rotated
clockwise (cw), the ICS volume for crew and PAX increases. The ICS is muted during
transmit operations.
The outer (rear) knob is the PILOT VOX control. For full information on VOX operation,
see section 3.3.4.
3.3.2 MUSIC VOL/COPILOT VOX
The MUSIC VOL control is a fluted concentric rubber knob on the right side of the front
panel.
The inner (front) knob is the MUSIC VOL control, which is used to set normal music
volume. The volume is at minimum when fully counter-clockwise (ccw), and as the knob
is rotated clockwise (cw), the volume increases. Music is muted during transmit
operations.
The outer (rear) knob is the COPILOT VOX control. For full information on VOX
operation, see section 3.3.4.
3.3.3 Annunciator
The front panel annunciator is a bi-colour LED that shows intercom status.
If the LED is illuminated green, it indicates transmit activity, and if it is red, it indicates
VOX activity. For transmit with sidetone or mic activity, it will illuminate amber. The
green LED also indicates a possible stuck mic if still lit after transmission is concluded.
Page 3-2 Oct 20, 2004
ENG-FORM: 806-0106.DOT
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