GAI-Tronics 7325-104 SmartSeries Outdoor Metallic Emergency Party Line Amplifier Enclosure - Manual (Page 2)

Pub. 42004-622L2A
Model 7325-104 Outdoor Metallic Emergency Party Line Amplifier Enclosure Page: 2 of 8
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10/03
Installation
CAUTION
Do not install this equipment in hazardous areas or areas other than those
indicated on the approval listing in the Specification section of this manual. Such installation may
cause a safety hazard and consequent injury or property damage.
When installing an add-on station, consult the system layout diagrams at the end of this manual. These
figures, when used in conjunction with the station installation information and cable layout guide, should
provide all the information necessary to install additional Page/Party
< stations.
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. The number, size, and color-coding of conductors are listed in the accompanying system
connection diagrams.
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 one mile (5280 feet) for 115 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 Model 7325-104 Weatherproof Metallic Enclosure is supplied with pre-drilled cable openings and
conduit hubs with top and bottom cap plugs in place to prevent contamination. Whenever possible, do not
enter an enclosure from the top. We highly recommend using only the bottom entry to prevent moisture
from dripping onto the terminals or PCBAs. The best location for conduit holes is along the bottom of the
enclosure near the rear surface. If the top opening is to be used, carefully seal around the fitting to prevent
moisture from entering.
For specific details including mounting hole dimensions, refer to Figure 1. There are four 7/16-inch
diameter mounting holes in the corners of the amplifier enclosure. The suggested mounting height for all
station enclosures is 54 inches (137 cm) to the centerline of the enclosure.
N OTE : Labels denoting which party line(s) is configured as the emergency party line are included in an
envelope inside the enclosure. The labels are for Party Line 1, Party Line 2, and Party Lines 1 and 2
configurations. Apply the appropriate label inside your enclosure.