ModelADSF-25-ZMounting:
Speaker Model ADSF-25-Z is intended for flush mounting. Figure 10 is a dimensional
outline drawing of the speaker. There are six mounting holes approximately 0.200” in
diameter in its outer flange. Install the speaker behind a 6-1/8” diameter hole. Hard-
ware for mounting the speaker shall be provided by the installer.
PanelMountIntercomMounting:
CAUTION
The selection of the mounting location for the device, its controls, and the
routing of the wiring are to be accomplished under the direction of someone
who has a good understanding of automotive electrical procedures and sys-
tems, along with proficiency in the installation and service of safety warning
equipment.
1. The panel mount intercom is designed to be mounted behind a customer-
supplied panel. The panel is designed to mount on a panel cut out mounting pattern as
shown in Figure 12.
2. Secure the panel mount intercom by installing the screws in to the four (4)
mounting holes. The four mounting holes are 0.203 in diameter and will accept 1/4-20
screws. Hardware for mounting the intercom to the surface is left up to the installer.
E. ElectricalConnections.
Plug each intercom into a nearby power source. Connect the audio inputs in paral-
lel.
Audio wires should be sized properly for your specified application.
CAUTION
The (+) and (–) DC power leads should be connected to the vehicle’s battery
terminals.
Optional: A 1 K, 1 W resistor is included in a kit with each intercom. Installing the
resistor across the audio lines may help to reduce noise in certain environments. Only
one resistor needs to be installed on the lines for any system installation.
See figures 1 through 12 for typical intercom connections and wiring information.
CAUTION
The “audio common” should not be connected to chassis ground for optimum
performance.
F. Service.
1. General.
Federal Signal will service your equipment or provide technical assistance
with any problems that cannot be handled locally.
A Return Material Authorization must accompany any units returned to
Atkinson Dynamics for service or inspection. This R.M.A can be obtained only from the
factory by calling (800) 433-9132.
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