Northern Airborne Technology AA12S - Manual (Page 6)

AA12S Series Compact Audio Controller
SM12S Installation and Operation Manual
Section 1 Rev: 1.00 Issue 4 Page 1-3
ENG-FORM: 800-0114.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
Music Inputs
Quantity 2 (left channel, right channel)
Rated level 1.4 Vrms nominal (850 mVrms to 2.4 Vrms)
Impedance 11 kOhm ±10 %
Circuitry type Unbalanced
Bi-directional Signals
ICS TIE Channel
Quantity 1
Rated level 340 mVrms nominal (170 to 680 mVrms)
Impedance 2 kOhm ±10 %
Circuitry type Unbalanced
Output Signals
Phones
Quantity 4 (Pilot, Copilot, 2 Passengers)
Rated level >5.5 Vrms (>100 mW, RX, ICS and music)
>0.7 Vrms (TX sidetone, adjustable)
1.5 Vrms nominal (Pilot ISO mode)
>0.2 Vrms (Automatic failsafe mode)
Impedance 300 Ohm ±10 %
Circuitry type Transformer, Unbalanced
Mics
Quantity 4 (COM1, COM2, COM3 and PA)
Rated level 250 mVrms ±10 %
Impedance 150 Ohm nominal
Circuitry type Direct throughline via relay
Keylines
Quantity 4 (COM1, COM2, COM3 and PA)
Rated level <1 A
Circuitry type Grounded relay contact