GAI-Tronics 7325-104 SmartSeries Outdoor Metallic Emergency Party Line Amplifier Enclosure - Manual (Page 7)

Pub. 42004-622L2A
Model 7325-104 Outdoor Metallic Emergency Party Line Amplifier Enclosure Page: 7 of 8
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10/03
Troubleshooting
The following table lists some hints to aid technicians in troubleshooting.
Problem Solution
Feedback occurs
only during
page. 1. If a speaker is close to the station, try using the muting feature in the amplifier
enclosure at the terminal blocks. Connect the violet wire at TB1-8 to TB1-7.
Refer to the wiring diagram.
2. Ensure that speakers attached to other stations located nearby are not pointed in
your direction. If changing the orientation of the other speakers has no effect,
mutual muting may be required. Mutual muting silences all the speakers within
proximity to the affected stations during a page from any one of the mutually
muted stations. Connect the orange wire (spare) to the TB1-7 of all the stations
to be mutually muted. Note: If too many stations are selected, paging coverage
can be adversely affected.
3. Check line terminations at the line balance assembly. Line balance assembly
connections are critical.
Crosstalk
occurs. One or more system cable pairs may be improperly terminated. Visually inspect the
system cable connections for accidental crossing of the cable pairs or grounds.
Specifications
Construction/finish.................................................................... Sand-cast aluminum alloy, cam-style latch,
hinged door with gasket; gray baked enamel
Mounting...................................................... Wall, column, or pole (mounting kit required for pole mount),
four 7/16-inch mounting holes
Connections ...............................................................................Internal screw-type barrier terminal blocks
Dimensions........................................................... 14.9 H
× 10.8 W × 9.6 D inches (378 × 274 ×244 mm)
Shipping weight ............................................................................................................... 20.4 lbs. (9.3 kg)
Approvals..................... NRTL Listed for USA and Canada................. Class I, Div. 2, Groups A, B, C, D;
Class II, Div. 2, Groups F and G; Class III, Div. 2
Outdoor environmental rating.................................................................................................... NEMA 3R
REPLACEMENT PARTS
Part Number Description
12564-001 Party Line Selector Knob and Label Kit (5 pack)
12505-001 Door Kit
12505-002 Door Handle Kit
12535-002 Hardware Kit (5 sets)
61507-010 Harness Assembly