Northern Airborne Technology 806 - Manual (Page 49)

806 and 807 Audio Selector Panels
SM806 Installation and Operation Manual
Section 3 Rev: 1.00 Issue 4 Page 3-3
3.3.3 Row 2 Controls
3.3.3.1 AUTO-COMM Switch
The Auto-Comm switch is a two-position toggle switch that is used to select/deselect the
Auto-Comm feature.
When the switch is in the 'up' position, the AUTO-COMM feature is on and the receiver
volume control switches are 'auto enabled' by the transmit select rotary switch on the
front panel. For example, rotating the rotary switch to position '1' turns ON the COMM-1
volume channel even if the COMM-1 knob is not pulled OUT.
Note: PA is not affected by AUTO-COMM.
3.3.3.2 COMM 1 and 2
COMM 1 and COMM 2 are pull-push rotary switches used to control their
respective transceivers.
When the control is pulled out, the relevant transceiver will be selected and
when pushed in, it will be deselected. The rotary function of the switch is
used to adjust the volume.
3.3.3.3 Interphone Switch/Volume (INPH) – Model 806 only
The interphone control is a pull-push rotary switch used to control the interphone
function.
The Interphone feature is selected when the switch is pulled out and the interphone
volume is adjusted by rotating the control.
The INPH switch also controls the rear connector output discrete for the copilot Model
807 interphone function.
3.3.4 Row 3 Controls
3.3.4.1 Speaker Switch (SPKR)
The speaker switch is a 2-position toggle switch used as an on/off switch for the speaker.
When the switch is in the 'up' position, the speaker is on and in the down position the
speaker is off.
When the SPKR switch is in the on position, it also provides a connection between
discrete input SPKR input and discrete output SPKR output.
ENG-FORM: 806-0111.DOT
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