Approval basis — none, 5specifications, Approval – PS Engineering PMA9000EX Installation Manual User Manual
Page 5: Basis, None -2, Specifications -2

PS Engineering
PMA9000EX Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-920-0000
Page 1-2
Rev. 9, Jan. 2011
A six-station voice activated (VOX) intercom is included in the PMA9000EX. This system has PS Engi-
neering’s patented IntelliVox® circuitry that eliminates manual adjustments. The intercom system inco r-
porates pilot isolate, all and crew modes, two independent stereo music inputs with "SoftMute™". Inter-
com volume control is through two concentric front panel knobs and a pushbutton intercom mode switch.
The small volume knob controls the intercom level for the pilot and copilot, while the large knob controls
the passenger intercom volume. Intercom squelch is automatic.
A concentric rotary data input knob on the right side of the unit controls less essential functions and con-
figurations.
An internal MP3 section allows the user to upload digital music files, while a Bluetooth section allows
connection with Bluetooth-enabled telephones.
A 3-light, 75 MHz Marker Beacon receiver is integrated in the PMA9000EX. This provides the necessary
Marker Beacon lights and audio indications necessary for that portion of an Instrument Landing System
(ILS) approach. A pushbutton labeled MKR allows the pilot select high or low sensitivity as well as test
and mute modes.
1.4
APPROVAL BASIS — NONE
The PMA9000EX is not approved for installation on US Registered Civilian Aircraft with normal
airworthiness certificates.
Operation is subject to the following conditions:
This device may not cause harmful interference.
This device must accept any interference received, including interference that may cause undesired oper a-
tion.
1.5
SPECIFICATIONS
DIMENSIONS:
Height: 1.3 in. (3.3 cm) Width: 6.25 in. (16.9 cm)
Depth behind panel 7.15 in. (18.16 cm)
WEIGHT
PMA9000EX Unit
Rack with connectors
1.34 lb. (0.61 kg)
0.51 lb. (0.24 kg)
POWER REQUIREMENTS (Including Internal Lighting):
Voltage:
11 to 33 VDC
Maximum Current:
2.5 Amp (Externally protected by a 5A pull-type
breaker)