9
Installation, Maintenance, and Service Manual
Federal Signal
www.fedsig.com
Wiring the LED Message Board System in the Vehicle
Wiring the LED Message Board System in the Vehicle
The LED Message Board is completely wired at the factory and does not require any
additional internal wiring. It has two 14 AWG power conductors (red and black) and a
connection for a Convergence Network communication cable. The conductors necessary
to control the Message Board are contained in the Convergence Network cable, which
connects to a compatible Federal Signal Message Board Control Head.
INSTALLATION PRECAUTIONS: The warning system and/or two-way radio
system may operate improperly if a two-way radio antenna is installed on or
within 18 inches of the light bar. Before permanently installing the light bar or
a two-way radio antenna, test the warning system and two-way radio system.
Some installations may require the relocation of the two-way radio antenna
to the trunk or fender. DO NOT drill holes in the light bar or install auxiliary
devices on the light bar, or the warning system may fail.
LOCATING OPERATOR CONTROLS: The controls for the light system must be
located so that the VEHICLE and CONTROLS can be operated safely under all
driving conditions.
EXPLOSION HAZARD: To avoid a battery explosion, always disconnect the
negative battery cable first and reconnect it last. Avoid causing a spark when
connecting near or to the battery. The gases produced by a battery can cause
a battery explosion that could result in vehicle damage and serious injury.
REVERSE POLARITY/MISWIRING: Reverse polarity may damage the siren
amplifier. To avoid damage to the siren/amplifier, ensure that the battery
voltage is the same voltage as the rating of the light and that the correct
polarity is observed.
Wiring the Standalone-Mount Message Board
The Message Board draws approximately 50 mA in standby. To avoid excessive battery
drain, use an ignition-switch source for the Message Board only.
To wire the Standalone-Mount Message Board:
1.
Ensure that the lines are adequately fused. Route the Convergence Network cable
from the Message Board into the cab or trunk of the vehicle and to the planned
location of the Message Board control head. See Figure 2.
