PS Engineering
PMA5000EX Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-550-0100
Page 1-2
Rev. 3, Dec. 2015
1.4
APPROVAL BASIS **None**
The PMA5000EX is
NOT INTENDED OR APPROVED
for installation or use in a certified aircraft.
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
WEIGHT
PMA5000EX 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 break-
er)
Audio Selector Specifications
Audio selector panel input impedance
:
510
Input Isolation
:
-60 dB (min.)
Receiver Inputs
:
6 (Com 1, Com 2, TEL, AUX 1, AUX 2, DME)
Unswitched Inputs
:
5 (including front jack)
Transmitter Selections
:
4 (Com 1, Com 2, TEL
Com1/2)
Headphone Impedance
:
150 – 1000
Headphone Output
:
38 mW each headset, no clipping <1% THD typical
Microphone Impedance
:
150 - 600
Intercom Specifications
Intercom Positions
:
4 places (with individual
Intelli
Vox® circuits)
Music Inputs
:
2, (Independent, 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
:
10 Hz – 26 kHz