D. Mounting.
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
the facilities and the safety engineer.
The panel mount intercom is designed to be mounted behind a customer-supplied panel.
1. Cut an opening and drill the four (4) mounting holes in the customer-supplied panel.
Refer to figures 1 and 6.
2. Carefully insert the panel mount intercom into the customer-supplied panel.
3. Secure the panel mount intercom by installing screws in the four (4) mounting holes. The
four mounting holes are .191" in diameter and will accept a #8 mounting screw. Hardware
for mounting the intercom to the surface is left up to the installer.
Refer to instruction sheet 2561543A, if necessary, for mounting the speaker.
E. Electrical Connections.
Connect the power wires labeled “PWR +” and “PWR -” on the panel mount intercom to a
nearby power source. On 120/240VAC models, the green/yellow wire labeled “EGND” should
be connected to earth ground. Connect the audio wires labeled “SPK” (white/brown) and
“COM” (white) from the intercom to the local speaker/microphone. Models with the “-M44”
option have an extra pair of audio wires labeled “REM SPK” (black) and “COM” (white) that
should be connected to a remote speaker. Connect the audio wires labeled “AUD” (black or
green) and “COM” (white) on the panel mount intercom to the same color audio wires on
another intercom in the system. Audio wires should be sized properly by a licensed installation
electrician for your specified application. “C” and “D” models have a control line labeled
“CTRL” (black). The control line on a “C” model (Master mode) connects to the control line
on a “D” model (Slave mode). Refer to figures 2 through 5 for typical connections and
additional wiring information.
Optional: A 1K, 1W resistor is included in a kit with each intercom. Installing the resistor across
the audio lines helps to reduce noise in certain environments. Only one resistor needs to be
installed on the lines for any system installation.
F. Service.
1. General.
Federal Signal will service your equipment or provide technical assistance with any problems
that cannot be handled locally.
Any units returned to Atkinson Dynamics for service, inspection, or repair must be
accompanied by a Return Material Authorization. This R.M.A. can be obtained only from the
factory by calling (888) 751-1500. At this time a brief explanation of the service requested or
the nature of the malfunction, should be given.
Address all communications and shipments to:
ATKINSON DYNAMICS
Service Department
2645 Federal Signal Drive
University Park, IL 60466-3195
-4-
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