AA12S Series Compact Audio Controller Manual

SM69 Rev. 4.00

1.3Specifications1.3.1Electrical Specifications

Power Supply

 

 

Input voltage

11-30 Vdc operating. Linear regulator with

 

reverse and over voltage protection.

Internal supply

11 Vdc

Nominal Lighting Voltage

27.5

Vdc @ 200 mA max (AA12S-001)

 

13.5 Vdc @ 400 mA max (AA12S-004)

Nom. Operating Voltages

27.5

Vdc @ 600 mA max

(one input for both)

13.8

Vdc @ 600 mA max

Maximum Operating

30.3

Vdc

Minimum Operating

11.0

Vdc

Note: The AA12S is not designed to operate under emergency electrical system conditions for 14 Vdc operation.

Input Signals

Mic:

 

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

7 (3 COM, 4 NAV)

Rated level

2.5 Vrms nominal (1.3 to 5.0 Vrms)

Impedance

1 kOhm ±10 % (1 to 3 kOhm for sidetone)

Circuitry type

unbalanced

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

Page 1-2

 

Oct 13, 2005

ENG-FORM: 800-0107.DOT

Amendment # 1

Oct 14, 2005

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.