PS Engineering PMA7000CD Installation Manual User Manual

Page 6

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PS Engineering

PMA7000CD- Series Audio Selector Panel and Intercom System

Installation and Operator’s Manual

200-790-0010

Page 1-3

Revision 10, September 2005

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)

Audio Selector Specifications

Audio selector panel input impedance:

510

Input Isolation:

-60 dB (min.)

Speaker Muting:

-60 dB (min.)

Speaker Output (into 4

Ω) with no clipping

14 VDC:
28 VDC:


3 Watts (min.)
10 Watts (min.)

Receiver Inputs:

9 (Com 1, Com 2, Com 3, Nav 1, Nav 2, ADF,
DME, MKR, AUX)

Unswitched Inputs:

4

Transmitter Selections:

6 (Com 1, Com 2, Com 3
Com1/2, Com1/3, Duplex Telephone)

Speaker Impedance:

4

Headphone Impedance:

150 – 1000

Headphone Output:

38 mW each headset, no clipping <1% THD

Microphone Impedance:

150 - 600

Intercom Specifications

Intercom Positions:

6 places (with individual IntelliVox® circuits)

Music Inputs: 2

(Stereo)

Music Muting:

>-30 dB "Soft Mute" when Com or intercom active.

Distortion:

<1% THD @ 38 mW into 150

Mic Freq. Response, 3 dB:

300 Hz - 6000 Hz

Music Freq. Response, 3 dB:

20 Hz - 18kHz

MARKER BEACON RECEIVER:PMA7000MS-CD only

Frequency:

75 MHz Crystal Controlled

Sensitivity:
Low:
High:

Capable of: (preset at factory for field application)
1000

µVolts (Hard) (360 to 570 µV soft)

200

µVolts (Hard) (130 to 200 µV soft)

Selectivity:

-6 dB at ±10 kHz
-40 dB at ±120 kHz

External Lamp Output:

7.5 (±4 VDC unloaded, at maximum brightness) VDC
positive when active, max. current 125 mA

MM Sense:

Active high (4.5 ± 1.0VDC)

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