PS Engineering
PMA7000B Series Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-780-0005 Page 1-2 Rev. 11, February 2015
An “Alternate Intercom Mode” is incorporated in PMA7000B beginning with a serial number starting with
“J”and above. This allows the passengers and crew to converse, but removes radio traffic from the passen-
gers’ headphones, and blocks passenger mics from the crew during radio receptions.
A 3-light Marker Beacon receiver is integrated in the PMA7000B. This provides the necessary Marker
Beacon lights and audio indications necessary for an Instrument Landing System (ILS) approach.
1.4 APPROVAL BASIS -
TSO Approval.
The PMA7000B-series Audio Selector Panels are FAA approved under TSO C50c (Audio Amplifiers) and
TSO C35d (Marker Beacon Receivers). In addition, they are approved by the Joint Airworthiness Authori-
ties under JTSO C50C and JAR-TSO 2C35d.
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 (Software Considerations for Airborne Equipment) and ED- 18/DO-214
(Audio Systems Characteristics and Minimum Operational Performance Standards for Aircraft Audio Sys-
tems).
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
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