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PS Engineering

PAC24 Series Audio Selector Panel and Intercom System

Installation and Operator’s Manual

200-240-0010 Page 1-3 Rev. 25, Feb. 2015

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:

(Com 1, Com 2, Com 3, Com 4, Com 5, Nav 1,

Nav 2, ADF, DME, MKR)

Unswitched Inputs:

(examples: GPS WPT, Value, Autopilot Discon-

nect, Altimeter DH)

Transmitter Selections:

(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.

1 2 3 4 5 6 7 8 9 10 11 ... 39 40

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