Northern Airborne Technology InterMUSIC AA83-100, Installation And Operation Manual

Page: 7 / 26

AA83-100 InterMUSIC
™
Stereo Intercom Manual SM09-3 Rev. 4.00
1.4 Specifications
1.4.1 Electrical Specifications
Input Power Linear regulator with over voltage protection.
Operating Voltages
Nominal 27.5 or 13.8 Vdc @ 550 mA max (one input for both)
Maximum 30.3 Vdc
Minimum 11.0 Vdc
Internal supply 11 Vdc
Input Signals
Microphone
Quantity 4 (pilot, copilot, 2 Passengers).
Rated level 250 mVrms nominal (125 to 500 mVrms)
Impedance 150 Ohm
±
10%
Circuitry type unbalanced
TX Keyline
Quantity 2 (pilot, copilot).
Rated level ground activates keyline,
<
20 mA source current
ICS Keyline
Quantity 4 (pilot, copilot, 2 Passengers).
Rated level ground activates keyline,
<
1 mA source current
Receive Audio
Quantity 1
Rated level 2.5 Vrms nominal (1.3 to 5.0 Vrms)
Impedance 1.2 kOhm
±
20%
Circuitry type unbalanced
Music Inputs
Quantity 2 (left channel, right channel)
Rated level 1.4 Vrms nominal (850 mVrms to 2.4 Vrms)
Impedance 12.5 kOhm
±
10%
Circuitry type unbalanced
Bidirectional Signals
ICS TIE Channel
Quantity 1
Rated level
340 mVrms nominal (170 to 680 mVrms)
Impedance 2 kOhm
±
10%
Circuitry type unbalanced
Page 1-2 Mar 4, 2005
ENG-FORM: 800-0107.DOT
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