PS Engineering
PMA7000B Series Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-780-0004 Page 1-1 Feb. 2004
Section I GENERAL INFORMATION
1.1 INTRODUCTION
The PMA7000B represents the next step in cockpit audio control and intercommunications utility. Using
proprietary IntelliVox® design, this unit eliminates the requirements for intercom squelch adjustments. The
unit is designed for outstanding ergonomics and visually defined mode annunciation and selection.
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 in the PMA7000B.
1.2 SCOPE
This manual provides detailed installation and operation instructions for the PS Engineering PMA7000B-
series of Audio Selector Panel/Intercom Systems. This includes the following units:
Model
Description Part Number
PMA7000B Stereo Audio Selector Panel with Marker Beacon 7000B
Option 1 added to any 7000B Digital Recorder and Aural Warning System
(DRAWS) added
7000B-Opt 1
Option 2 on any system Stereo Audio Panel Without Marker Beacon 7000B-Opt 2
Option 3 added to any system Black bezel (no silver trim)
Black Bezel (no silver trim) w/ DRAWS
7000B-Opt 3
7000B Opt-1, 3
Option 7 Digital Recorder Only (Raytheon Version) 7000B Opt 3, 7
Other options may be applied for exclusive use by specific aircraft manufacturers,
under Type Certification. Call for information.
Where the functions are identical to all units, it will be referred to herein as a PMA7000B. Otherwise, the
applicable units will be specified.
1.3 EQUIPMENT DESCRIPTION
The PMA7000B-series is a state of the art audio isolation amplifier and audio selector that contains an
automatic voice activated (VOX) intercom system. It can switch up to three transceivers (Com 1, Com 2
and Com 3) and six receivers (Nav 1, Nav 2, ADF, DME, MKR and AUX).
A duplex COM 3 mode (selectable at installation) allows the PMA7000B to act as an audio interface be-
tween aircraft headphone and microphones and specific aircraft approved
(FAA/FCC) cellular telephone
equipment.
Warning
: Use of non-aviation approved cellular telephone equipment may be prohibited by regulation.
PS Engineering is not responsible for unauthorized airborne use of cellular telephones.
For airborne use, the PMA7000B must be interfaced with an approved system.
There are four unswitched inputs, available for traffic or EGPWS, autopilot disconnect, and/or radar al-
timeter 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 button switches selects one of the communication transceivers for the pilot and copilot position, and
allows radio transmission. In "Split Mode" the PMA7000B has the ability to allow the pilot and copilot to
operate different transceivers independently. The Com 3/TEL mode (selected at installation) allows the
pilot to use the audio panel for duplex operation, such as with aviation-specific cellular telephones. Exter-
nal switches permit telephone operation for the copilot and passengers.
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