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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

TSO COMPLIANCE

Marker Beacon:

C35d, Class A

Audio Selector/Intercom:

C50c, Class A

APPLICABLE DOCUMENTS:

RTCA/DO-214 RTCA/DO-143 RTCA/DO-160C

RTCA/DO-178B

ENVIRONMENTAL Qualifications:

A1D1/CA(MN)XXXXXXBBBBTBKXX

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: 6.8 in. (17.3 cm)

WEIGHT (With Rack & Connectors):

1.5 lb. (0.54 kg)

POWER REQUIREMENTS (Including Internal Lighting):

Voltage:

11 to 33 VDC

Maximum Current:

2.5 Amp (Externally protected by a 3A pull-type

breaker)

1 2 3 4 5 6 7 8 9 10 ... 35 36

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