PS Engineering
PMA8000 Series Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0000
Page 1-2
Revision 9, June 2005
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 Marker Beacon receiver is integrated in the PMA8000. This provides the necessary Marker Bea-
con lights and audio indications necessary for an Instrument Landing System (ILS) approach. A pushbut-
ton labeled MKR allows the pilot select high or low sensitivity as well as test and mute modes.
1.4
APPROVAL BASIS –
TSO Approval
.
The PMA8000-series Audio Selector Panels are FAA approved under TSO C50c (Audio Amplifiers) and
TSO C35d (Marker Beacon Receivers).
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
TSO COMPLIANCE
Marker Beacon
:
C35d, Class A
Audio Selector/Intercom
:
C50c, Class A
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
PMA8000 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)
