Northern Airborne Technology AA38-5xx - Manual (Page 4)

AA38-5xx, -6xx, -7xx and -8xx Series Local ICS Loop Manual
SM54 Installation and Operation Manual
Section 1 Rev: 1.01 Issue 4 Page 1-1
ENG-FORM: 800-0116.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
Section 1 Description
1.1 Introduction
Information in this section consists of product description, design features and specifications for the
AA38-5xx, -6xx, -7xx and -8xx Series Local ICS Loop Manual. All derivative product information shall be
contained in the applicable manual supplement, which may be obtained from Northern Airborne
Technology Ltd as required.
Review all notes, warnings and cautions.
1.2 Product Description
The AA38-5xx Series Local ICS Loops (not AA38-505) provide live, VOX or keyed ICS for 4 or 8 users
(depending on model) with low impedance headsets.
The AA38-6xx Series Local ICS Loops provide live, VOX or keyed ICS for 4 or 8 users (depending on
model) with high impedance headsets.
The AA38-7xx Series Local ICS Loops provide an external ICS Volume control, and live, VOX or keyed
ICS for 4 users with low impedance headsets.
The AA38-8xx Series Local ICS Loops provide an external ICS Volume control, and live, VOX or keyed
ICS for 8 users with high impedance headsets.
The AA38-503, AA38-603 and AA38-703 models have prioritized transmit capabilities for all users, with
the highest priority given to user #1 and lowest to user #4.
The AA38-505 Series Local ICS Loops provide live, VOX or keyed ICS for 4 users with high impedance
headsets.
1.3 Design Features
The AA38-5xx, -6xx, -7xx and -8xx Series Local ICS Loops are remote, bulkhead mounted units
containing all the circuitry required to support a wide variety of ICS Loop applications, particularly
isolation/ICS amplifier use, where the output is required to be headset or line level. A switch-selectable
NAT/Andrea (AA38-5xx or -6xx) or NAT/SuperNAT ICS tie line (AA38-7xx or AA38-8xx) allows
connection to larger audio systems, and an auxiliary input allows for audio input from an audio panel or
transceiver.
The compact size and low weight of the AA38-5xx, -6xx, -7xx and -8xx Series Local ICS Loops allows
mounting in restricted locations, and the mapped interconnect makes installation simple to carry out.
ICS level and VOX sensitivity adjustments are provided for each headset position and for the AUX level.
The operational performance of the AA38 unit can be enhanced for specific operating roles with the
addition of in-line PTT drop cords. Drop cords can be configured to allow individual selection of headset
volume, intercom operation in VOX, LIVE or PTT mode, and independent TX PTT capability for those
AA38 models equipped with TX functions.