GAI-Tronics 69439-001 External Audio Interface (EAI) - Manual

Pub. 42004-677L2C
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374 „ 800-492-1212 „ Fax: 610-796-5954
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G A I - T R O N I C S ® C O R P O R A T I O N
A H U B B E L L C O M P A N Y
69439-001
External Audio Interface
Confidentiality Notice
This manual is provided solely as an operational, installation, and maintenance guide and contains
sensitive business and technical information that is confidential and proprietary to GAI-Tronics.
GAI-Tronics retains all intellectual property and other rights in or to the information contained herein,
and such information may only be used in connection with the operation of your GAI-Tronics product or
system. This manual may not be disclosed in any form, in whole or in part, directly or indirectly, to any
third party.
General Information
The Model 69439-001 External Audio Interface (EAI) allows multiple audio paths to be interfaced to a
SmartSeries system. It is installed in a 10457 Series Card Rack and is controlled by a 69440 Master
Control Unit (MCU) installed in that same card rack. The EAI is designed exclusively for use in a
SmartSeries system, and is not intended for use with other types of equipment.
Description of Major Components
The EAI Front Panel LEDs
The following table describes the EAI front panel LEDs and their functions:
LED Status Description
On The MCU is communicating properly with the EAI, and the MCU is
configured to recognize the EAI.
Flashing The MCU is not communicating properly with the EAI.
N OTE : The flashing rate is approximately 1 Hz.
ON LINE
Off EAI is not receiving power from the card rack or the MCU is not properly
configured to recognize the EAI.
On The Audio Messenger Interface (AMI) acting as the primary audio generator is
active (playing a message for a purpose other than supervision).
PRI ACT
Off The “On” condition is not occurring.
On The AMI acting as the secondary audio generator is active.
SEC ACT
Off The “On” condition is not occurring.