13
Installation, Operation, and Service Manual
Federal Signal
www.fedsig.com
Installing the CN SignalMaster
Setting Configuration Options
The CN SignalMaster has three configuration options that are selectable with DIP
switches on the light bar’s control board. Table 3 describes the options. See “Figure 2
DIP switches on the CN SignalMaster controller PCBA” on page 14 for the locations
of DIP switches on the controller PCBA in the CN SignalMaster.
Table 3 CN SignalMaster DIP switch settings
DIP Switch
Position
Description of Option
SW1
Sets an eight-head (OFF) or six-head (ON) CN SignalMaster with DIP Switch 3 OFF (REAR).
With Switch 3 ON (Front), Switch 1 sets the lightheads that turn on when a Steady Burn input
is applied. The default position for Switch 1 is OFF for driver side/passenger side Steady Burn
(Positions 2, 6) of the Front CN SignalMaster. Turn Switch 1 to ON for driver-side only Steady
Burn (Position 2).
SW2
DIP Switch 2 switches between light head colors. To get amber SignalMaster patterns in LED
light head assemblies, including White/Amber, Blue/White/Amber, or Red/White/Amber, DIP
Switch 2 must be ON. Otherwise, the light bar will flash color combinations that do not include
amber.
SW3
Switch 3 has three functions:
• Activating a front-mounted or rear-mounted CN SignalMaster
• Performing an LED scan to ensure that an LED board flashes the correct colors after it is
installed
• Changing the Device ID to enable the CN SignalMaster to operate independently of the
light bar (available with the SmartSiren Platinum Configuration Software)
Choosing to Activate a Front- or Rear-Mounted CN SignalMaster
To activate a front-mounted CN SignalMaster, set Switch 3 ON.
To activate a rear-mounted CN SignalMaster, set Switch 3 OFF.
Performing an LED Scan
When an LED board is changed, an LED scan must be done to enable the LED board to flash the
correct colors.
To perform the scan:
1. Disconnect the red power (BAT+) wire to the CN SignalMaster and maintain power to the
control head.
2. Change the position of DIP Switch 3 and turn power ON to the CN SignalMaster. The CN
SignalMaster emits a short flash to indicate the LED scan is done.
3. To return DIP Switch 3 to its original function, repeat the scan.
Changing the Device ID
The default setting for the CN SignalMaster is to respond to light bar commands. For example, if
the system includes a light bar and a CN SignalMaster, both devices perform the same functions.
The SmartSiren programming software enables you to program the control head to send a set of
commands dedicated only to the CN SignalMaster, making its operation independent of the light
bar.
To reset the control head to the default setting, perform an LED scan as described above.
SW4
Sets the ability to power the network cable for other devices. The default is OFF. DIP Switch 4
should be set only if the main power cables are turned on through an ignition-activated relay. If
powering other devices, such as the Six-Button Serial Controller, set DIP Switch 4 to
ON. For more information, see the instructions included with the network-powered device.
