PS Engineering PMA6000B - Manual (Page 4)

PS Engineering
PMA6000B Audio Selector Panel and Intercom System
Installation Manual
200-066-0200 Page 1-1 Rev 6, Feb. 2013
Section I
GENERAL INFORMATION
1.1 INTRODUCTION
The PMA6000B family of Audio Selector Panels are revolutionary products. Never before has there been
so much capability and utility in such a compact package. These units are designed for ease of use and
installation, as well as to facilitate cockpit resource management and improve passenger entertainment.
Before installing and/or using this product, please read this manual completely. This will ensure that you
will take full advantage of all the advanced features.
1.2 SCOPE
This manual provides detailed installation and operation instructions for the PS Engineering PMA6000-
series of Audio Selector Panel/Intercom Systems. This includes the following units:
Model Description Part Number
PMA6000B Audio Selector Panel with Marker Receiver 6000B
PMA6000B Option 2 same as above, less marker receiver 6000B-2
Where the functions are identical to all units, it will be referred to herein as a PMA6000. Otherwise, the
applicable units will be specified.
1.3 EQUIPMENT DESCRIPTION
The PMA6000-series is a state of the art audio isolation amplifier and audio selector that contains a voice
activated (VOX) intercom system. It can switch up two transceivers (Com 1, Com 2) and six receivers
(Nav 1, Nav 2, ADF, DME, MKR and AUX). In addition, there are two unswitched inputs, for priority
audio sources such as TAWS or altimeter warning. Push buttons select the receiver audio source provided
to the headphones. A SPR button allows the user to listen to the receiver(s) selected on the cabin speaker.
Except for the unswitched inputs, all speaker audio is muted during transmit. Push buttons select one of
the transceivers for the pilot and copilot position in transmit. In "Split Mode" the PMA6000 has the abil-
ity to allow the pilot and copilot to operate different transmitters independently.
A fail-safe mode connects the pilot headphone and microphone to COM 1 and unswitched input #1 if
power is removed for any reason, or if the audio panel is turned OFF by pushing the volume control.
A four-station voice activated (VOX) intercom is included in the PMA6000. Pilot isolate and crew modes,
two mono music inputs with "Soft Mute," and transmit indications. Intercom control is through front
panel mounted knobs. Dual concentric knobs control intercom volume and intercom squelch.
A 3-light Marker Beacon receiver is integral to the PMA6000B (without option 2). This provides the nec-
essary Marker Beacon light and audio indications necessary for an Instrument Landing System (ILS) ap-
proach.
Figure 1-1 PMA6000B