PS Engineering PMA7000H Installation Manual - Manual (Page 4)

PS Engineering
PMA7000H Series Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-780-0429 Page 1-1 Rev. 4, Dec 2012
Section I GENERAL INFORMATION
1.1 INTRODUCTION
The PMA7000H 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 PMA7000H.
1.2 SCOPE
This manual provides detailed installation and operation instructions for the PS Engineering PMA7000H-
of Audio Selector Panel/Intercom Systems. This includes the following units:
Model
Description Part Number
PMA7000H Stereo Audio Selector Panel with Marker Beacon 7000H
PMA7000H Same as PMA7000H with enhanced Cockpit
Voice Recorder output
7000H-CVR
1.3 EQUIPMENT DESCRIPTION
The PMA7000H- is an audio isolation amplifier / audio selector that contains a 10-place (9-places in units
with serial number starting with “A” Serial Number “B” and above have 10-places) automatic voice activat-
ed (VOX) intercom system. It can switch up to three transceivers (Com 1, Com 2 and Com 3) and six re-
ceivers (Nav 1, Nav 2, ADF, DME, MKR and AUX).
A duplex COM 3 mode (selectable at installation) allows the PMA7000H 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 in flight may be prohibited by reg-
ulation.
PS Engineering is not responsible for unauthorized airborne use of cellular telephones.
For airborne use, the PMA7000H must be interfaced with an approved system.
There are four unswitched inputs, available for traffic or EGPWS, autopilot disconnect, and/or radar altime-
ter 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 select one of the communication transceivers for the pilot and copilot position, and
allows radio transmission. In "Split Mode" the PMA7000H has the ability to allow the pilot and copilot to
operate different transceivers independently. The Com 3/TEL mode (selected at installation) allows the pi-
lot to use the audio panel for duplex operation, such as with aviation-specific cellular telephones. External
switches permit telephone operation for the copilot and passengers.
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 power switch is placed in the Off (Fail-safe) position.
A 9-station voice activated (VOX) intercom is included in the PMA7000H. This system has PS Engineer-
ing’s exclusive IntelliVox® circuitry that eliminates manual adjustments. The system contains nine separate
VOX mic circuits, and only opens the microphone channel in use.