PS Engineering
PMA8000 Series Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-890-0000
Page 1-3
Revision 9, June 2005
Audio Selector Specifications
Audio selector panel input impedance
:
510
Ω
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, TEL, Nav 1, Nav 2, ADF,
DME, MKR, AUX)
Unswitched Inputs
:
4
Transmitter Selections
:
4 (Com 1, Com 2, TEL
Com1/2)
Speaker Impedance
:
4
Ω
Headphone Impedance
:
150 – 1000
Ω
Headphone Output
:
38 mW each headset, no clipping <1% THD typi-
cal
Microphone Impedance
:
150 - 600
Ω
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 @ 38 mW into 150
Ω
Mic Freq. Response, 3 dB:
300 Hz - 6000 Hz
Music Freq. Response, 3 dB
:
10 Hz – 26 kHz
MARKER BEACON RECEIVER:
Frequency
:
75 MHz Crystal Controlled
Sensitivity
:
Low:
High:
Capable of: (preset at factory for field application)
1000
µ
Volts (Hard) (360 to 570
µ
V soft)
200
µ
Volts (Hard) (130 to 200
µ
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
positive when active, max. current 125 mA
MM Sense
:
Active high (4.5 ± 1.0VDC)