GAI-Tronics 478-002 Centra-Page Desktop Subset - Manual

Pub. 42004-120C
GAI-Tronics Corporation P.O. Box 1060, Reading, PA 19607-1060 USA
610-777-1374 „ 800-492-1212 „ Fax: 610-796-5954
V ISIT WWW . GAI - TRONICS . COM FOR PRODUCT LITERATURE AND MANUALS
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
Model 478-002
Centra-Page Desktop Subset
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 GAI-Tronics Centra-Page system provides dependable paging and party-line communications for
rugged and hazardous industrial facilities. Centra-Page systems feature centrally-located electronics that
provide environmental protection and unitized amplification for easy maintenance. Standard Centra-Page
cabinets can support up to 30 handset stations, and in most cases, up to 60 speakers. Alarms and telephone
interfacing can also be added to Centra-Page systems.
The Model 478-002 Desktop Station is used for paging and party-line communications. Equipped with a
push-to-page handset and party-line selector, the station is easy to use.
To generate a page, the station user lifts the handset, checks for an available party line, presses the handset
pressbar while announcing their page making sure to indicate which party line they are using, and releases
the pressbar. The paged individual then goes to a station, turns the party-line selector switch to the
appropriate party line, lifts the handset, and answers the page. Two-way communication can then take
place on the party line.
Although there is no absolute limit on the number of stations in use on a given intercom path (party line 1
or 2), for a “conference” call, the effectiveness of the sidetone rejection circuit diminishes, and overall
performance begins to diminish when four or more stations are connected together. It is therefore
recommended that “conference” call party line conversations be limited to four simultaneous users.