Installation Manual Manual

PS Engineering
PAC24 Series Audio Selector Panel and Intercom System
Installation and Operator’s Manual
200-240-0010 Page 1-3 Rev. 24, Dec. 2013
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 
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: 10
(Com 1, Com 2, Com 3, Com 4, Com 5, Nav 1,
Nav 2, ADF, DME, MKR)
Unswitched Inputs: 2
(examples: GPS WPT, Value, Autopilot Discon-
nect, Altimeter DH)
Transmitter Selections: 5
(Com 1, Com 2, Com 3 Com 4, Com 5)
Speaker Impedance:
4 – 8 
Headphone Impedance:
150 – 1000 
Headphone Output: 38 mW each headset, no clipping <1% THD
120 mW each headset with < 10% THD into
150
Microphone Impedance:
150 - 600 
Intercom Specifications
Intercom Positions: Minimum of 5 places (with individual IntelliVox® cir-
cuits)
Music Input:
1 (Monaural)
Music Muting:
>-30 dB "Soft Mute" when Com or intercom active.
Distortion:
<1% THD @ 38 mW into 150
<10% THD @ 120mW into 150 
Mic Freq. Response, 3 dB:
300 Hz - 6000 Hz
Music Freq. Response, 3 dB:
100 Hz - 18kHz
1.6 EQUIPMENT SUPPLIED
1 ea. of the following units:
Model Description Part Number
PAC24 PAC24 Audio Control Panel with intercom 050-240-0100
PAC24 Option 1 PAC24 Audio Control Panel with intercom and digital recorder, 050-240-0200
PAC24 Observer PAC24 Audio Control Panel for Observer installation 050-240-0400
PAC24 Observer Option 1 PAC24 Audio Control Panel for Observer with recorder 050-240-0401
PAC24 Vertical PAC24 Audio Control Panel with intercom, Vertical Orientation 050-240-0500
PAC24 Special PAC24 Audio Controller, Special Mission Version, Vertical 050-240-0503
Observer (-04XX) units must be
dual installations, and cannot be
mixed with other part numbers.