GAI-Tronics 700 Series Installation Manual

Page/party systems

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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 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 page
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 Pub. 42004-135, Speaker Installation, or consult with a GAI-Tronics sales representative
for additional system planning information.
All units are wired in parallel. Good planning will minimize the cable required for each installation.
GAI-Tronics Corporation can supply multi-conductor cable designed especially for this application. The
number, size and color-coding of conductors are listed in the accompanying system connection diagrams.
Standard cable has 600-volt insulation and is UL-rated for power cable tray use. Additionally, for ease of
installation GAI-Tronics' cable is color-coded to match the termination points in our enclosures. The
maximum standard cable length is 5250 feet (1600m) from the Line Balance Assembly systems. For non-
standard cable, please contact a GAI-Tronics representative.
The cable described above includes conductors to provide ac operating power to each station. All stations
operate from a common source, enhancing reliability, particularly if no other ac load is placed on the
circuit breaker or branch line feeding the system. This configuration also allows easy transfer to an
emergency power source in the event of power failure. However, if preferred, each station may be
individually powered from a nearby nominal 115 volt, 50 or 60 Hz single phase outlet.
GAI-Tronics Corporation P.O. Box 1060, Reading, PA 19607-1060 USA
610-777-1374
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
700 Series
Page/Party
®
System is a modular industrial communication system incorporating from
®
System layout should be planned in advance of installation. Select handset
800-492-1212
.
-
.
GAI
TRONICS
COM FOR PRODUCT LITERATURE AND MANUALS
Systems
®
Fax: 610-796-5954
Pub. 42004-139D

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Summary of Contents for GAI-Tronics 700 Series

  • Page 1: General Information

    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.
  • Page 2: Installation Procedure

    Pub. 42004-139D ® GAI-Tronics 700 Series Page/Party Systems Page: 2 of 10 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 3 ® Each GAI-Tronics Page/Party system requires one line balance assembly. Its function is to properly load the page and party line circuits. When using GAI-Tronics standard cable, select a location that is: • near the electrical center of the system •...
  • Page 4 GAI-Tronics cable is considered to be a Class 1 cable (maximum voltage is less than 600 V). In a cable tray, Class 1 cable may only be grouped with other Class 1 cables. Long runs of GAI-Tronics cable in ®...
  • Page 5 Pub. 42004-139D ® GAI-Tronics 700 Series Page/Party Systems Page: 5 of 10 Step 6 — Checkout and Adjustment Test all field wiring connections (page line, party line(s), mute, ac power and speaker) between stations, and complete the line balance assembly installation before checkout begins. Ensure that all handsets are on-hook.
  • Page 6: Step 7 - Troubleshooting The System

    Pub. 42004-139D ® GAI-Tronics 700 Series Page/Party Systems Page: 6 of 10 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 7 Pub. 42004-139D ® GAI-Tronics 700 Series Page/Party Systems Page: 7 of 10 Static Charges In many normal installations, a static ac voltage may be read from the conductors of the page and party line circuits to ground. In many cases this voltage may be as high as 50 volts or more. This voltage is induced into the circuits by capacitance to the ac power circuit (generally carried in the same cable, and also from power cables paralleling communication cables).
  • Page 8 Voltage drop must also be taken into consideration for long cable runs. The minimum operating voltage for a GAI-Tronics station is 90V ac and the resistance of 14 AWG cable is 26.8 ohms per loop mile. Contact your nearest GAI-Tronics representative it you require assistance with system layout.
  • Page 9 Pub. 42004-139D ® GAI-Tronics 700 Series Page/Party Systems Page: 9 of 10 \\s_eng\gtcproddocs\standard ioms - current release\42004 instr. manuals\42004-139d.doc 11/99...
  • Page 10 Pub. 42004-139D ® GAI-Tronics 700 Series Page/Party Systems Page: 10 of 10 \\s_eng\gtcproddocs\standard ioms - current release\42004 instr. manuals\42004-139d.doc 11/99...

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