GAI-Tronics 703A Indoor Multi-Party 115 V AC Amplifier Enclosure - Manual

Quick Installation Guide Pub. 42004-142HQG
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374  800-492-1212  Fax: 610-796-5954
V ISIT WWW . GAI - TRONICS . COM FOR PRODUCT LITERATURE AND MANUALS
703A Multi-Party Indoor 120 V AC Amplifier Enclosure
General Information
This manual is provided as a simple installation guide for the 703A Enclosure. For the complete installation, operation and maintenance manual
please visit http://www.gai-tronics.com/manuals.
Mounting .................................................................................................................................. Wall or column, four 0.31-inch (7.8 mm) mounting holes
Connections ..................................................................................................................................................... Internal screw-type barrier terminal blocks
Dimensions ................................................................................................................................... 12.3 H
 8.1 W  5.1 D inches (313  206  129 mm)
Shipping weight ........................................................................................................................................................................................ 7.5 lbs. (3.4 kg)
Installation
CAUTION
This equipment is suitable for use in Class I, Division 2, Groups A, B, C and D; or Class I, Zone 2, Group IIC; or
non-hazardous locations only. Combinations of equipment in your system are subject to investigation by the local Authority Having
Jurisdiction at the time of installation. See full product manual for additional information at www.gai-tronics.com.
Enclosure Placement
All GAI-Tronics Page/Party ® units are wired in parallel. Good system layout design minimizes the cable required for each installation. GAI-Tronics
multi-conductor cable, designed especially for this application, is recommended.
System layout and power cable length are very important when installing Page/Party  equipment. Although it varies for different systems, the
general guideline is that the total power cable length should not exceed 1 mile (5280 feet) for 120 V ac systems. The total cable length is the most
important consideration while cable length between the stations is generally not a factor.
Mounting
The 703A Indoor Enclosure is not supplied with conduit or cable openings. Drill or punch these openings using the template supplied before
mounting the enclosure. The recommended cable entry point is via the bottom of the enclosure near the rear surface to prevent moisture from
dripping onto the terminals or PCBAs. A secondary location for cable entry is in the top of the enclosure toward the sides. Avoid the top center, as it
may interfere with the plug-in amplifier receptacle. Under no circumstances should cable entries be made in the side of the enclosure as this may
interfere with the installation of the plug-in amplifier.
For specific details including mounting hole dimensions, refer to Figure 2. When mounting the enclosure, use caution to avoid damaging the
terminal blocks inside. The suggested mounting height for all station enclosures is 54 inches (137 cm) up to the centerline of the enclosure.
Wiring
Attach the conduit to the enclosure. Feed the wiring through the conduit and bring it into the enclosure. See Figure 1. Follow the wire colors
carefully because the colors correspond to GAI-Tronics 60029 series multi-party cable. The wires must be spade-lugged and connected carefully and
completely to the terminal block. An improper termination may result in diminished station performance.
Local Muting
Figure 1 illustrates local speaker muting when stations are completely assembled and paging operation occurs. Normally, when the station button is
pressed, the paging speaker connected to that station is silenced (muted) to prevent acoustic feedback to the handset microphone. However, while the
handset is in use for party line conversations, the paging speaker is “live” to enable paging calls from other stations.
To disable the mute feature, follow these instructions:
1. Locate the lugged violet wire attached to terminal point 7 (mute) on the terminal block within the enclosure.
2. Transfer the lugged violet wire to terminal point 8 (Page L1).
After any muting changes are made, unpack the station amplifier and install.
In the event that feedback occurs within an area and repositioning of the system speakers does not help, mutual muting may be used to correct this
problem. For instructions on mutually muting the station, see the complete installation, operation and maintenance manual at http://www.gai-
tronics.com/manuals.