GAI-Tronics 7245-005 SmartSeries Indoor Remote Subset Amplifier Enclosure - Manual (Page 6)

Pub. 42004-684L2B
Model 7245-005 Indoor Remote Subset Amplifier Enclosure Page: 6 of 9
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Figure 3. Typical Desk-edge Installation Figure 4. Typical Flush-mount Installation
Mounting and Wiring Instructions
1. The indoor enclosure is not supplied with openings for conduit or cable because their locations vary
with each installation. Drill or punch these openings using the supplied template before mounting the
enclosure. The best location for the conduit holes is along the top or bottom of the enclosure and near
the rear surface. Avoid the top center and bottom left because of possible interference with the
plug-in amplifier receptacle and the subset receptacle. Sealed threaded hubs, such as Myers
“Scru-tite” are recommended conduit terminations.
2. Four 0.312-inch (7.92 mm) diameter mounting holes located in each corner of the amplifier enclosure
have been provided for installing the enclosure. See Figure 1.
3. Place the enclosure on the mounting surface and secure it with four screws.
4. Install the conduit and hubs.
5. Feed the system wiring into the enclosure. Strip the insulation on each conductor of the system cable.
Install a ring lug on the ground conductor (GRN/YW wire) and spade lugs on all other conductors.
Terminate each conductor using the wire colors indicated in the system wiring diagrams in Figure 3
and Figure 4.
N
OTE : Improper terminations may diminish the station performance.
6. Feed the speaker wiring into the enclosure. Strip the insulation on each conductor of the speaker
cable. Install spade lugs on each conductor. Connect the speaker wires of an 8-ohm speaker between
the TB1-4 (speaker common) and TB1-5 (8-ohm) or connect the speaker wires of a 16-ohm speaker
between the TB1-4 (speaker common) and TB1-6 (16-ohm).
7. Set the speaker muting control to the desired location. Refer to the adjustment section for details.
8. Plug the subset connector into the J2 receptacle located at the bottom of the enclosure. Secure the
connector with the connector guard and screws provided. See Figure 1.
9. Insert the plug-in amplifier’s J3 into the mating receptacle of the enclosure. Insert the plug-in
amplifier into the J1 receptacle of the enclosure and secure the amplifier with four screws.