PS Engineering
PMA450 Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-450-0000
Page 1-3
Rev. 6, Dec. 2015
Audio Selector Specifications
Audio selector panel input impedance
:
510
Input Isolation
:
-60 dB (min.)
Speaker Muting
:
-60 dB (min.)
Speaker Output
(into 4
) with no clipping
14 VDC:
28 VDC:
3 Watts (min.)
10 Watts (min.)
Receiver Inputs
:
7 (Com 1, Com 2, Nav 1, Nav 2, 3 ea. Switched Inputs
available)
Unswitched Inputs
:
4
Transmitter Selections
:
3 (Com 1, Com 2, Com1/2)
Speaker Impedance
:
4
Headphone Impedance
:
150 – 1000
Headphone Output
:
30 mW each headset, no clipping <.5% THD typical
Microphone Impedance
:
150 - 600
Bluetooth Radio (PMA450 -1702 only)
Class 3, FCC ID
QOQWT32AE
Intercom Specifications
Intercom Positions
:
6 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 @ 30 mW into 150
Mic Freq. Response, 3 dB:
300 Hz - 6000 Hz
Music Freq. Response, 3 dB
:
10 Hz – 26 kHz
MARKER BEACON RECEIVER (-0100 only)
Frequency
:
75 MHz Crystal Controlled
Sensitivity
:
Low:
High:
Capable of: (preset at factory for field application)
1000
Volts (Hard) (360 to 570
V soft)
200
Volts (Hard) (130 to 200
V soft)
Selectivity
:
-6 dB at ±10 kHz
-40 dB at ±120 kHz
External Lamp Output
:
7.5 (±4 VDC unloaded, at maximum brightness) VDC posi-
tive when active, max. current 125 mA
MM Sense
:
Active high (4.5 ± 1.0VDC)
USB Charging Port
Available Current
2.0A (10W Maximum) output, short circuit and over-current
protected
Voltage
5 VDC
1.6
EQUIPMENT SUPPLIED
1 ea. of the following units:
Model
Description
Part Number
PMA450
PMA450 Digital Audio Panel with Marker, Stereo Intercom, USB
Charging jack, and Bluetooth connectivity
050-450-0100
PMA450
Same as above, without Marker Beacon capability
050-450-0200