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PS Engineering PMA8000BT NUI Installation Manual User Manual

Page 30

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PS Engineering

PMA8000BT Audio Selector Panel and Intercom System

Installation and Operator’s Manual

200-890-1702

Page 3-8

New, April 2011

3.11 Smart Function Keys (SFK)

With Virtual Tech Support, the configuration process is self-directed. SFK annunciations are heard by the
pilot and copilot positions only. SFK annunciations will be heard by the copilot, even when the audio panel
is in pilot isolate mode. These annunciations will be stopped by any audio received on the com radio select-
ed for transmit.

Intercom

TEL

Monitor

AUX

Music

Mute

Alternate Intercom

mode

Monitor Mode

Music Distribution

State 1

State 2

State 1

State 2

State 1

State 2

State 3

“Alternate

intercom
function”

“Standard

Intercom

Function”

“Monitor

on”

“Monitor

off.”

Standard

music

distribution”

“Alternate

music

distribution”

“Music 1 all

headsets”

Table 3-2 – Smart Function Key Functions

Figure 3-2 Smart Function Keys

These functions are non-essential and non-required and as such are only an accessory capability. They don’t
affect the audio panel’s primary function as a selector panel, aircraft intercom, or marker beacon receiver.
You can’t do anything with these buttons to prevent the PMA8000BT from doing its main job.

Looking at the front panel you’ll notice that the TEL, AUX, Mute and SPR buttons have secondary function
assignments listed underneath the button.

To use these function keys– press and hold the desired key, “Intercom” (TEL) “Monitor” (AUX) or “Mu-
sic” (MUTE) until the audio annunciation is heard, indicating the mode has changed. The SPR controls the
music 1 volume, and is discussed later.

There are multiple music sources available to the PMA8000BT. Music 1 input can be streamed from a
Bluetooth source, input through the front jack, OR the Music 1 input at the rear connector (Pins 23 and 24
J2). Music 2 is wired into the rear connector, only (Pins 26 and 27, J2)

3.11.1

“Intercom”

Alternate Intercom Function (A)

This function controls the distribution of aircraft radio within the intercom, as well as passenger intercom
muting, when in the “ALL” intercom mode. In the “standard intercom function” mode, aircraft radios are
distributed to all, when the intercom is in the ALL mode. In CREW mode, only the pilot and copilot
positions will hear aircraft radios.

When “Intercom” function is toggled (hold TEL button) into “Alternate Intercom Function,” the passengers
will NOT hear aircraft radios, even in the All intercom mode. They will be able to converse with the crew.
However, when the aircraft radio becomes active, the intercom audio from the passengers is muted,