PS Engineering PMA7000M-S Installation Manual User Manual
Page 6
PS Engineering
PMA7000M-S Series Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-070-0012
Page 1-3
Rev. 12, Sept. 2000
Specifications, Continued.
POWER REQUIREMENTS (Including Internal Lighting):
Voltage:
11 to 33 VDC
Maximum Current:
2.5 Amp (Externally protected by a 3 Amp circuit
breaker.)
Typical operating current:
Speaker off:
Speaker on, 28V, full radio volume
350 mA
1.5 A
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, Com 3, Nav 1, Nav 2, ADF,
DME, MKR, AUX)
Unswitched Inputs:
2
(examples: GPS WPT, Value, Autopilot Discon-
nect, Altimeter DH)
Transmitter Selections:
6
(Com 1, Com 2, Com 3
Com1/2, Com2/1, Telephone)
Speaker Impedance:
4
Ω
Headphone Impedance:
150 – 1000
Ω
Headphone Output:
38 mW each headset, no clipping <1% THD
70 mW each headset with < 10% THD into 150
Ω
Microphone Impedance:
150 - 600
Ω
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
Ω
<10% THD @ 70mW into 150
Ω
Mic Freq. Response, 3 dB:
300 Hz - 6000 Hz
Music Freq. Response, 3 dB:
100 Hz - 18kHz
MARKER BEACON RECEIVER:PMA7000M-S only
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)