The AA12S is a compact audio controller with an integral 4-place stereo voice-activated intercom. It provides intercom capabilities for the pilot, co-pilot and two passengers (PAX). The AA12S accepts stereo music inputs from either portable or fixed entertainment systems to produce high quality stereo headset output.
Radio functions include selectable transmit capability for pilot ad co-pilot on 3 COM radios and a PA. Receive audio selections include COM1, COM2, COM3, MKR, NAV, ADF, and DME.
规格：
Weight:
1.2 lb (.50 kg)
Dimensions:
1.15 x 5.80 x 4.95 in
Connectors:
One 25 pin female D-min connector with jackposts
One 44 pin male high density D-min connector with jackposts
Temperature:
-20°C to 55°C
Altitude:
50,000 ft
Shock:
6 g/11 ms, 20 g/11 ms
Input Voltage:
11 - 30 VDC; 30.3 VDC maximum; 13.8 or 27.5 VDC @ 600 mA; 11.0 VDC minimum
Input signals:
Microphone:
Quantity: 4 (pilot, copilot, 2 passenger)
Rated lever: 250 mVrms nominal (125 to 500 mVrms)
Impedance: 150 Ω ±10%
TX Keyline:
Quantity: 2 (pilot and 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 souce current
Receive Audio:
Quantity: 7 (3 COM, 4 NAV)
Rated level: 2.5 Vrms nominal (1.3 to 5.0 Vrms)
Impedance: 1 kΩ ±10% (1 to 3 kOhm for sidetone)
Circuity type: Unbalanced
Music Inputs:
Quantity: 2 (left channel, right channel)
Rated level: 1.5 Vrms nominal (850 mVrms to 2.4 Vrms)
Bi-direction Signals:
ICS TIE Channel: 1
Rated level: 340 mVrms monial (170 to 680 mVrms)
Impedance: 2 kΩ ±10%
Circuit type: unbalanced
Output Signals:
Phones:
Quantity: 4 (pilot, copilot, 2 passengers)
Rated level: >5.5 Vrms (>100 mW, RX and ICS and music)
Impedance: 300 Ω ±10%
circuitry type: transformer, unbalanced
Mic:
Quantity: 4 (COM1, COM2, COM3, PA)
Rated level: 250 mVrms ±10%
Impedance: 150 Ω nominal
Circuitry type: direct through via relay
Keyline:
Quantity: 3
Rated level: <1 A
Circuitry Type: grounded relay contact
Audio Performance:
Rated Power: 100 mW minimum in to 300 Ω
Audio Frequency Response:
Receive: ≤3dB down from 350 - 6000 Hz
Intercom: ≤3dB down from 350 - 3000 Hz
ICS Tie: ≤3dB down from 350 - 3000 Hz
Music: ≤3dB down from 300 - 15000 Hz (Music bass control at mid settings)
Distortion: ≤10%, ≤3% typical (350 - 6000 Hz)
Input crosstalk: -37 dB max.
Output crosstalk: -55 dB max.
Mic crosstalk: <200 uVrms
Audio noise: -60 dB max.
Output Regulation: ≤3 dB variance (350 - 6000 Hz)
Audio Communication: Loud & Clear
ICS Volume Controls: ≥35 dB, 40 dB nominal
Music Volume Controls: ≥35 dB, 40 dB nominal
Receive Input Impedance: 1 kΩ ±10%
Mic Input Impedance: 150 Ω ±10%
Music Input impedance: 11 kΩ ±10%
ICS Tie Line: 2 kΩ ±10%
特征：
4-place stereo voice-activated intercom
Provides transmit for pilot, co-pilot, and two passengers
