Northern Airborne Technology AA83-001 rev.4.10 - Manual (Page 10)

AA83-001 InterMUSIC™Stereo Intercom System Manual SM09-2 Rev. 4.10
1.4
Specifications
1.4.1 Electrical Specifications
Input Power: +11 to +32 Vdc. Nominal 14/28 Vdc systems
Supply Current:
0.4 A max. (full output power, all users)
Headset Power:
Typical 100 mW into each side each headset
(300 Ω ear element)
4 headsets total
Total maximum power 400 mW per channel
Indicators:
Transmit (Green LED)
ICS (Amber LED)
Inputs:
4 microphones 'carbon equivalent'
250 mVrms for full output
150 Ω input impedance
2 TX keylines Active ground, for Pilot & Copilot
4 ICS keylines Active ground, for all users
2 music inputs Compatible, left & right
Configurable for either Walkman™/Discman™
phones compatible (3 Vp-p), or Line Output
compatible (100-500 mV @ 10 k
Ω)
1 Aircraft radio input
2.5 Vrms for full output
1 k Ω input impedance
1 bi-directional ICS Tie Line
1 Vp-p for full output
2.2 k Ω input impedance
Outputs:
4 aircraft stereo headsets (300 Ω/side)
Not designed for 8 Ω headsets
1 radio microphone output to aircraft audio
panel
1 TX keyline output (hard ground for TX).
Logic:
TX, active ICS, and incoming Receive Audio all
mute the music channel (Muting depth
adjustable)
Fast attack, slow return of music signal
Pilot TX priority
Page 1-2 Oct 20, 2004
ENG-FORM: 800-0108.DOT
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