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
