ACCESS/A A710X / A711X Installation & Operating Instructions
06RE387 rev. B
Technisonic Industries ltd. Copyright 2007 BY TiL ALL RIGHTS RESERVED
Page 1-1
SECTION
1
GENERAL
DESCRIPTION
1.1 INTRODUCTION
This publication provides operating and installation information on the Model
A710X and A711X,
ACCESS/A
Audio Expansion Panels manufactured by Technisonic Industries Limited. These
units are designed to provide six additional communications channels to either the Model
A710
or A711
ACCESS/A
audio controllers. The
A710X
unit may be directly interchanged with an
A711X
in the same harness, but the units are
physically different in size
, and the A711X has
individual volume controls for the receiver monitor levels.
1.2 DESCRIPTION
The
A710X
and
A711X
Audio Expansion Panels are designed to provide additional
communications channels to an existing ACCESS/A A710 or A711 Audio Controller. Seven
transceivers can be connected to the expansion panel and selected in the same manner as a
standard A710 or A711 audio controller.
The Expansion Panel is connected to an A710 or A711 controller via one of its com channels;
typically in the COM-7 position. This will reduce the maximum number of transceivers that an
A710 or A711 can directly access from seven to six.
Push-button transmit selector switches allow immediate selection of any of the seven supported
aircraft communications transceivers or PA amplifiers, while additional push-button audio input
selector switches allow receive monitoring of any or all of the supported transceivers.
Both
the
A711X
and
A710X
route audio internally through passive components and are not
dependant on aircraft system power. A dedicated Emergency Switch is therefore not required
and thus is not incorporated within these units. If power is lost to the Expansion Panel it will
continue to function normally but with the following exception. The front panel status LEDs and
backlighting will not be functioning.
