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 passen-
ger intercom volume. Intercom squelch is automatic.
The PMA8000C P/N 050-890-0303 has a 6-place intercom, while the 050-890-0313 can support two ex-
pansion units for up to a 14 place intercom (2 crew +12 passenger positions).
A 3-light, 75 MHz Marker Beacon receiver is integrated in the PMA8000C. 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 the receiver audio as well as test and
mute modes.
In the PMA8000C, a Bluetooth® wireless interface is available for wireless telephone and music connec-
tion.
1.4
APPROVAL BASIS
FAA TSO Approval.
The PMA8000C-series Audio Selector Panels are FAA approved under TSO C50c (Audio Amplifiers) 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 Aircraft
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
Marker Beacon:
Audio Selector/Intercom:
APPLICABLE DOCUMENTS:
ENVIRONMENTAL Qualifications:
Operating Temperature Range:
Altitude:
DIMENSIONS:
WEIGHT
PMA8000C Unit
Rack with connectors
POWER REQUIREMENTS (Including Internal Lighting):
Voltage:
Maximum Current:
200-890-0303
PS Engineering
PMA8000C Audio Selector Panel and Intercom System
Installation and Operator's Manual
TSO COMPLIANCE
FAA TSO C35d, Class A ETSO 2C35d
FAA TSO C50c, Class 1a ETSO C50c
RTCA/DO-214 RTCA/DO-143 RTCA/DO-160D
RTCA/DO-178B DO-254
A1D1CABSMXXXXXXZBABATBXXE2XXX
-15º C to 55ºC
Up to 50,000 feet in an non-pressurized area
Height: 1.3 in. (3.3 cm) Width: 6.25 in. (16.9 cm)
Depth behind panel 7.15 in. (18.16 cm)
1.34 lb. (0.61 kg)
0.51 lb. (0.24 kg)
11 to 33 VDC
2.5 Amp (Externally protected by a 5A pull-type break-
er)
Page 1-2
Rev. 5, May 2015
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