Northern Airborne Technology AMU50-001 - Manual (Page 8)

AMU50-001 Audio Management Unit
SM76 Installation and Operation Manual
Section 1 Rev: 1.03
Issue 1 Page 1-5
ENG-FORM: 800-0116.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
Passenger ICS Volume Inputs (PAX VOL +/-)
Quantity: Two
Aural Alert Cancellation Input (Alert Cancel)
Quantity: One
Aural Alert Inhibit Input (Alert Inhibit)
Quantity: One
Weight On Wheels Input (WEIGHT ON WHEELS)
Quantity: One
Normal Mode Enable Input (ACP 1 NORM MODE and ACP 2 NORM MODE)
Quantity: Two (one for User 1 and one for User 2)
Backup Mode Enable Input (ACP 1 BACKUP MODE and ACP 2 BACKUP MODE)
Quantity: Two (one for User 1 and one for User 2)
Winchman Select Inputs (ACP 1 WINCHMAN SELECT thru ACP 3 WINCHMAN SELECT)
Quantity: Three (associated with ACP 1 through ACP 3)
Aural Alert Inputs (Alert 1 thru Alert 8)
Quantity: Eight
Maximum Current: ≤10 mA
Input Protection: Diode protected to +45 Vdc maximum
Active LO Configuration (configured through the DevCs application):
Logic: Active LO, switched ground no external pull up required
Input Active: ≤+3 Vdc
Active HI Configuration (configured through the DevCs application):
Logic: Active HI, switched power no external pull down required
Input Active: ≥+18 Vdc
Normal Call Input (NORM Call in)
Quantity: One
High Priority Call Input (High Priority Call in)
Quantity: One
Isolation Over-ride Input (Isolation Over-ride in)
Quantity: One
OUTPUTS
The AMU50 provides the following outputs to the aircraft:
Audio Outputs
Headphone Outputs
Three headphone impedances available: User 1 and User 2 headphone impedances must be the
same; User 3 through User 7 headphone impedances are independently configurable.
Quantity: Seven Mono PHN, configured through DevCs application.
Rated Output: >250 mW into rated load
Circuitry Type: Balanced