Northern Airborne Technology 3110 - Manual (Page 56)

3110-100 Audio Control Panel Manual SM3110 Rev. 4.00
3.3.2
Transmitter Selection
The 3110-100 provides selection controls for four radio transmitters - COM1, COM2,
COM3, and HF (COM4), plus CAB (Cabin interphone - COM6) and PA (Passenger
Address - COM7).
The Transmit buttons are square black push-button switches that are used to select
transceivers for transmission. When a transceiver is selected, the associated
annunciator LED will illuminate green. The transmit buttons are interlocked by internal
logic to prevent simultaneous selection of more than one transmitter.
When a transmit button is selected/deselected, the associated receiver channel is
automatically selected/deselected, even if the receiver control is deselected.
3.3.3
Receiver Selection
Annunciators
Transmit Buttons
Com Receiver
Controls
NavAid Receiver
Controls
The 3110-100 provides volume controls for up to thirteen transceiver and receiver
sources in combination. It supports four COM radios - COM1, COM2, COM3, and HF
(COM4), plus CAB (COM6), PA (COM7), and up to seven navigation (Nav) radios -
NAV1, NAV2, DME1, DME2, MKR, ADF1, and ADF2.
The Receiver controls are black, illuminated, push-on/push-off rotary knobs that are used to
select transceivers and receivers, and to provide volume control.
When a control is in the OUT position, the corresponding radio is selected (on), and the
arrow on the knob is illuminated. When a control is in the IN position, the corresponding
radio is deselected (off), and the illumination is reduced.
The individual radio volumes can be set by rotating the controls. When the knob is
rotated clockwise (cw) the volume increases, and rotating it counterclockwise (ccw)
decreases the volume.
Page 3-2 Aug 25, 2005
ENG-FORM: 806-0106.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.