GAI-Tronics 12389-001 NOVA PA/GA Systems S.M.A.R.T. Modules - Manual (Page 3)

Pub. 42004-674L2H
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
NOVA Public Address Systems
S.M.A.R.T. Modules
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
Product Overview
The NOVA S.M.A.R.T. Modules are a collection of function-specific modules that perform various fault
detection tasks in extended range communication systems. It is an alarm and an alarm supervision system
that is transparently incorporated within a public address/paging system, such as the NOVA Public
Address System. The modules are designed with a common serial interface to a GAI-Tronics central
processing unit. The CPU forwards the system indications to an operator paging console typically located
in a control room or office.
The NOVA S.M.A.R.T. Modules are capable of monitoring many components of any type of wired audio
paging system for health status and report faults both locally through logic closure outputs, and remotely
via serial data link.
 The low-level audio paths through a system are monitored by the use of sub-audible tones mixed into
inputs and detected on outputs.
 The high-level power audio connections are monitored for integrity by measuring loop resistance and
ground fault leakage.
 Individual loudspeaker integrity can be checked using the speaker remote modules that sample
speaker audio current. When commanded, these modules report their health status to a central
location via RF data modem over the audio distribution lines of a central amplifier system.
 The speaker remote modules are also capable of changing individual loudspeaker power levels on
command from a central location. This can be done on a system-wide or individual speaker basis.
The range of adjustment is in steps from off/mute to full power.
System Requirements and Limitations
The NOVA S.M.A.R.T. Modules are either housed in a central cabinet or installed in field locations, and
each typically requires an uninterruptible 24 V dc power source.
A complete system can support up to 120 zones, each containing as many speakers as the power amplifier
can support.