Northern Airborne Technology AA12S-600 - Manual (Page 7)

AA12S-600 Compact Stereo Audio Controller
SM84 Installation and Operation Manual
Section 1 Rev: 1.01
Issue 1 Page 1-4
ENG-FORM: 800-0115.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
Transmit Keylines
Quantity 3
Rated Level
Active Low, <20 mA source current
ICS Keylines
Quantity 6
Rated Level
Active Low, <20 mA source current
PAX Call Key
Quantity 1
Rated Level
Active Low, <20 mA source current
Output Signals
Note:
All nominal values are listed with a ±10% tolerance.
Headphones
Quantity 6 stereo outputs
Rated Level ≥100 mW (≥5.5 Vrms) into 300 Ω per channel stereo or
150
Ω mono
Impedance ≤35 Ω nominal
Circuit Type Single ended
Headphones (Emergency Mode Operation)
Quantity 1 stereo output (CREW 1)
Rated Level ≥0.25 mW into 300 Ω per channel stereo
Circuit Type Single ended
COM 1–4 Microphone
Quantity 4
Rated Level
250 Vrms nominal into 150 Ω
Impedance ≤140 Ω nominal
Circuit Type Single ended
Emergency COM Microphone
Quantity 1
Rated Level
≥190 mVrms nominal into 150 Ω 2
Circuit Type Single ended
2 Assumes microphone bias and terminating impedance provided by the Emergency Mode Transceiver.