Federal Signal Corporation CN SignalMaster Manual

25500013
REV. B1 0220
Printed in U.S.A.
© Copyright 2016-2020 Federal Signal Corporation
Installation, Maintenance,
and Service Manual
CN SignalMaster™

blank page
Limited Warranty
This product is subject to and covered by a limited warranty, a copy of which
can be found at www.fedsig.com/SSG-Warranty. A copy of this limited war-
ranty can also be obtained by written request to Federal Signal Corporation,
2645 Federal Signal Drive, University Park, IL 60484, email to
[email protected] or call [phone].
This limited warranty is in lieu of all other warranties, express or implied,
contractual or statutory, including, but not limited to the warranty of mer-
chantability, warranty of tness for a particular purpose and any warranty
against failure of its essential purpose.
2645 Federal Signal Drive
University Park, Illinois 60484-3167
www.fedsig.com
Customer Support
Police/Fire-EMS: 800-264-3578 • [phone]
Work Truck: 800-824-0254 • [phone]
Technical Support 800-433-9132 • [phone]

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Installation, Operation, and Service Manual
Federal Signal www.fedsig.com
Contents
Safety Messages for Installers and Service Personnel ............................................................... 4
Safety Messages for Operators of Warning Lights ...................................................................... 7
An Overview of the CN SignalMaster ............................................................................................ 8
LED Lights, Colors, and Flash Patterns......................................................................................................8
Installing the CN SignalMaster....................................................................................................... 9
Mounting the CN SignalMaster....................................................................................................................9
Wiring the CN SignalMaster in the Vehicle.............................................................................................10
Wiring the SignalMaster Function......................................................................................................... 11
Wiring the Light Bar Controls................................................................................................................. 11
Setting Configuration Options.................................................................................................................... 13
Testing the Light Bar ..................................................................................................................................... 14
Maintaining and Servicing the CN SignalMaster........................................................................ 15
Replacing a PCB............................................................................................................................................. 15
Replacing a Reflector.................................................................................................................................... 18
Getting Technical Support and Service....................................................................................... 19
Getting Repair Service.................................................................................................................................. 19
Ordering Replacement Parts ...................................................................................................................... 19
Figures
Figure 1 Mounting brackets attached to CN SignalMaster...................................................................... 10
Figure 2 DIP switches on the CN SignalMaster controller PCBA.......................................................... 14
Figure 3 Exploded front view of Model CNSM8 ........................................................................................ 15
Figure 4 Exploded rear view of Model CNSM8 ......................................................................................... 16
Figure 5 Exploded rear view of Model CNSM4 ......................................................................................... 17
Figure 6 Exploded rear view of Model CNSM2X4R ................................................................................. 17
Figure 7 Removing a reflector ........................................................................................................................ 18
Tables
Table 1 Mounting kit contents ...........................................................................................................................9
Table 2 CN SignalMaster controls and wires from the Serial Interface Module................................ 12
Table 3 CN SignalMaster DIP switch settings............................................................................................. 13
Table 4 Common replacement parts ............................................................................................................ 19

4CN SignalMaster™
Federal Signal www.fedsig.com
Safety Messages for Installers and Service Personnel
Safety Messages for Installers and Service Personnel
For your safety, read and understand this manual thoroughly before installing,
operating, and servicing the CN SignalMaster™. The safety messages presented in this
section and throughout the manual are reminders to exercise extreme care at all times.
Read and understand the safety instructions to installers (doc. no. 256A692), and keep
it close at hand for reference. To download copies of this manual, go to
www.fedsig.com or call the Federal Signal Service Department at 1-800-433-9132,
7a.m. to 5 p.m., Monday through Friday (CT).
People’s lives depend on your proper installation and servicing of Federal Signal
products. It is important to read and follow all instructions shipped with this product.
Listed below are some other important safety instructions and precautions you should
follow.
Before Installation or Service
Qualifications
• To properly install or service this equipment, you must have a good understanding
of automotive mechanical and electrical procedures and systems, along with
proficiency in the installation and service of safety warning equipment. Always
refer to the vehicle’s service manuals when performing equipment installations on
a vehicle.
Light Hazards
• To be an eective warning device, this product produces bright light that can be
hazardous to your eyesight when viewed at a close range. Do not stare directly
into this lighting product at a close range, or permanent damage to your eyesight
may occur.
• Do not install the light system in an area that would block, impair, or blind the
driver’s vision. Ensure that the light system is mounted in a position that is outside
the driver’s field of vision so the driver can safely operate the vehicle.
• Federal Signal power supplies and light heads are designed to work together as
a system. Combining light heads and a power supply from dierent manufacturers
may reduce the warning eectiveness of the lighting system and may damage the
components. You should verify or test your combination to ensure that the system
works together and meets federal, state, and local standards or guidelines.
Electrical Hazards
• The lighting system components, especially light bulbs, strobe tubes, LEDs, and
the outer housing, get hot during operation. Disconnect power to the system and
allow the system to cool before handling any components.
• A light system is a high current system. In order for the system to function
properly, a separate negative (–) connection and positive (+) connection must
be made. All negative connections should be connected to the negative battery

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Installation, Operation, and Service Manual
Federal Signal www.fedsig.com
Safety Messages for Installers and Service Personnel
terminal, and a suitable fuse should be installed on the positive battery terminal
connection as close to the battery as possible. Ensure that all wires and fuses are
rated to handle the device and system amperage requirements.
• Never attempt to install aftermarket equipment that connects to the vehicle
wiring without reviewing a vehicle wiring diagram available from the vehicle
manufacturer. Ensure that your installation will not aect vehicle operation or
mandated safety functions or circuits. Check the vehicle for proper operation after
installation.
• Do not mount a radio antenna within 18 inches (45.7 cm) of the lighting system.
Placing the antenna too close to the lighting system could cause the lighting
system to malfunction or be damaged by strong radio fields. Mounting the
antenna too close to the lighting system may also cause the radio noise emitted
from the lighting system to interfere with the reception of the radio transmitter and
reduce radio reception.
• Do not attempt to wash any unsealed electrical device while it is connected to its
power source.
During Installation and Service
• DO NOT get metal shavings inside the product. Metal shavings in the product
can cause the system to fail. If drilling must be done near the unit, place an ESD-
approved cover over the unit. Inspect the unit after mounting to be sure there are
no shavings present in or near the unit.
• DO NOT connect this system to the vehicle battery until ALL other electrical
connections are made, mounting of all components is complete, and you have
verified that no shorts exist. If the wiring is shorted to the vehicle body or frame,
high current conductors can cause hazardous sparks, resulting in electrical fires or
flying molten metal.
• DO NOT install equipment or route wiring (or the plug-in cord) in the deployment
path of an airbag.
• If a vehicle seat is temporarily removed, verify with the vehicle manufacturer if the
seat needs to be recalibrated for proper airbag deployment.
• Before mounting any components, check the manual to be sure that the
component you are installing is suitable for use in that area of the vehicle. Many
components are not suitable for use in the engine compartment or other extreme
environmental exposure areas.
• When drilling into a vehicle structure, ensure that both sides of the surface are
clear of anything that could be damaged. Remove all burrs from drilled holes. To
prevent electrical shorts, grommet all drilled holes through which wiring passes.
Ensure that the mounting screws do not cause electrical or mechanical damage to
the vehicle.
• Refer to the manual packed with the lighting system for proper electrical
connections, additional precautions,and information.