Specifications

PS Engineering
PMA8000B-MP3 Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0600 Page 1-2 Rev. 6, Oct. 2010
A six-station voice activated (VOX) intercom is included in the PMA8000B-MP3. This system has PS
Engineering’s patented IntelliVox® circuitry that eliminates manual adjustments. The intercom system
incorporates pilot isolate, all and crew modes, two independent stereo music inputs with "SoftMute™".
Intercom 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 3-light, 75 MHz Marker Beacon receiver is integrated in the PMA8000B-MP3. This provides the neces-
sary Marker Beacon lights and audio indications necessary for that portion of an Instrument Landing Sys-
tem (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
FAA TSO Approval.
The PMA8000B-MP3-series Audio Selector Panels are FAA approved under TSO C50c (Audio Amplifi-
ers) and TSO C35d (Marker Beacon Receivers), ETSO C50C/ and 2C53d.
All systems comply with relevant portions of EUROCAE RTCA MPS WG No. 7/70, DO-143 and (Marker
Beacon Receivers), ED-14C/DO-160C (Environmental Conditions and Test Procedures for Airborne
Equipment), ED12B/DO-178B, Level D (Software Considerations for Airborne Equipment) and ED-
18/DO-214 (Audio Systems Characteristics and Minimum Operational Performance Standards for Air-
craft Audio Systems).
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 opera-
tion.
1.5 SPECIFICATIONS
TSO COMPLIANCE
Marker Beacon:
FAA TSO C35d, Class A ETSO 2C35d
Audio Selector/Intercom:
FAA TSO C50c, Class 1a ETSO C50c
APPLICABLE DOCUMENTS:
RTCA/DO-214 RTCA/DO-143 RTCA/DO-160D
RTCA/DO-178B DO-254
ENVIRONMENTAL Qualifications:
A1D1CABSMXXXXXXZBABATBXXE2XXX
Operating Temperature Range:
-15º C to 55ºC
Altitude:
Up to 50,000 feet in an non-pressurized area
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
PMA8000B-MP3 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)