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Installation of 700 Series
24 V DC Page/Party
Confidentiality Notice
This manual is provided solely as an operation, 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 Page/Party
two to possibly hundreds of stations. Available in several forms, each station includes a handset, two
amplifiers (one for the handset and the other to drive one or more paging speakers), associated controls,
and a paging speaker (usually mounted separately). All stations are wired in parallel and additional
stations may be added at any time.
A GAI-Tronics Page/Party
station locations carefully, taking convenience, accessibility, and personal safety into account. The
quantity and location of paging speakers must be carefully considered, particularly in areas of high
ambient noise or reverberation.
The speaker amplifier built into each station drives one horn-loaded paging speaker. If additional paging
speakers are needed, separate speaker amplifiers can be added to the system. In quiet areas, such as
offices, several paging speakers can be connected to a single station.
Please refer to Publication 42004-135, Speaker Installation, or consult with a GAI-Tronics sales
representative for additional system planning information.
GAI-Tronics Corporation P.O. Box 1060, Reading, PA 19607-1060 USA
V
ISIT WWW
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
®
system is a modular industrial communication system incorporating from
®
system layout should be planned in advance of installation. Select handset
610-777-1374 n 800-492-1212 n Fax: 610-775-6540
.
-
.
GAI
TRONICS
COM FOR PRODUCT LITERATURE AND MANUALS
Pub. 42004-140D
Systems
®
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Summary of Contents for Hubbell GAI-TRONICS Page/Party 700 Series
- Page 1 Pub. 42004-140D 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 Installation of 700 Series 24 V DC Page/Party Systems...
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Page 2: Power Source Considerations
Pub. 42004-140D ® Installation of GAI-Tronics 700 Series 24 V DC Page/Party Systems Page: 2 of 13 Power Source Considerations WARNING ® NEVER connect 24 V dc Page/Party equipment to a supply voltage in excess of 28.8 V dc or equipment damage may result. - Page 3 Pub. 42004-140D ® Installation of GAI-Tronics 700 Series 24 V DC Page/Party Systems Page: 3 of 13 Maximum Cable Distance in Feet* Number 14 AWG 12 AWG 10 AWG 8 AWG of Units Total/Between Total/Between Total/Between Total/Between 4,000/4,000 6,400/6,400 10,000/10,000 16,000/16,000 2,800/1,400 4,480/2,240...
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Page 4: Installation Procedure
Pub. 42004-140D ® Installation of GAI-Tronics 700 Series 24 V DC Page/Party Systems Page: 4 of 13 Installation Procedure STEP 1 — Electrical Noise Considerations When planning your system, consider the following suggestions to avoid electrical noise caused by slip rings and silicon control rectifier (SCR) power supplies. - Page 5 Pub. 42004-140D ® Installation of GAI-Tronics 700 Series 24 V DC Page/Party Systems Page: 5 of 13 STEP 2 — Mounting of Station and Speaker Amplifier Enclosure ® Each Page/Party system station includes a plug-in amplifier that mates with a fabricated steel, cast aluminum, or molded reinforced non-metallic enclosure.
- Page 6 Pub. 42004-140D ® Installation of GAI-Tronics 700 Series 24 V DC Page/Party Systems Page: 6 of 13 STEP 3 — Mounting of Line Balance Assembly ® Each GAI-Tronics Page/Party system requires one line balance assembly. Its function is to properly load the page and party line circuits.
- Page 7 Pub. 42004-140D ® Installation of GAI-Tronics 700 Series 24 V DC Page/Party Systems Page: 7 of 13 STEP 5 — Installation of Amplifiers and Subsets ® One of the many features of GAI-Tronics Page/Party system equipment is automatic speaker muting. When the push-to-page switch is pressed at a particular station, the paging speaker connected to that station is silenced, preventing acoustic feedback to the handset microphone.
- Page 8 Pub. 42004-140D ® Installation of GAI-Tronics 700 Series 24 V DC Page/Party Systems Page: 8 of 13 Adjustment of the Line Balance Assembly To set the control for proper page circuit loading: 1. Remove the line balance assembly cover to expose the line balance control. 2.
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Page 9: Step 7 - Troubleshooting The System
Pub. 42004-140D ® Installation of GAI-Tronics 700 Series 24 V DC Page/Party Systems Page: 9 of 13 STEP 7 — Troubleshooting the System Hum or Buzz Hum or buzz on the page circuit (or one or more party circuits) is usually due to either a short circuit of one of the two conductors for each circuit to ground or unbalanced leakage to ground. - Page 10 Pub. 42004-140D ® Installation of GAI-Tronics 700 Series 24 V DC Page/Party Systems Page: 10 of 13 Audio Voltage In a system that is operating properly, audio voltage read across any of the page or party circuits (L1 or L2) will be 0.5 to 0.75 volts ac on peaks when an audio signal is present: i.e., someone speaking into a handset.
- Page 11 Pub. 42004-140D ® Installation of GAI-Tronics 700 Series 24 V DC Page/Party Systems Page: 11 of 13 Safe Power Connection/Disconnection To satisfy Division 2 requirements, the equipment will not create arcs or sparks in normal operation when completely installed and powered. Installing or removing an amplifier or plugging in a live enclosure is not normal operation and can create arcs.
- Page 12 Pub. 42004-140D ® Installation of GAI-Tronics 700 Series 24 V DC Page/Party Systems Page: 12 of 13 d:\standard ioms - current release\42004 instr. manuals\42004-140d.doc 11/03...
- Page 13 Pub. 42004-140D ® Installation of GAI-Tronics 700 Series 24 V DC Page/Party Systems Page: 13 of 13 d:\standard ioms - current release\42004 instr. manuals\42004-140d.doc 11/03...
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