-4-
E.
LOW switch.
When this switch is pressed, all directional patterns are
changed to turn lamps on/off in sequence until a pattern is
completed. The last lamp activated in the pattern will flash three
times. If this switch is operated while the WARN pattern is
activated, the first and eighth lamp activate alternately with the
third and sixth lamp. The selection of this function reduces the
current draw for the directional light assembly’s patterns. The
AUX switch function is not affected by the LOW switch.
F.
Auxiliary Input.
If connected, application of a positive (+) 12-volts to the
AUX IN connection on the seven-position connector produces the
WARN pattern described above. When the positive (+) 12-volts is
removed from the AUX IN connection, the WARN pattern will
stop. Slide switch activation will override the WARN pattern.
V.
SERVICE.
A.
General.
Servicing, other than cosmetic features, should be
performed by a qualified Federal Signal service center. If the
control unit is not working properly, disconnect all electrical
connections starting with the power leads. Remove the control unit
from the mounting bracket. Send the unit to the nearest autho-
rized service center or the Federal Signal service department.
Communication and shipments should be addressed to:
Service Department
Federal Signal Corporation
2645 Federal Signal Drive
University Park, IL 60466
1-800-433-9132
After servicing is complete, perform a test of all
functions to ensure the control unit is operating properly.
B.
Replacement Parts List.
Description
Part Number
Printed Circuit Board Assembly
2001142-02
Knob, Pushbutton
8573065
Knob, Slide Switch
8536C1041
Bezel, Slide Switch
8573060
Connector, Female, 7-position
140325-05
Connector, Female, 11-position
140325-09
Bracket, Mounting
8573070
Screw, Hex Head, Mounting
7011164-08
Lockwasher, 1/4"
7075078
Chassis
8573247
Cover
8573066
the control unit. The LED display simulates the light pattern
being executed by the directional light.
A.
Slide Switch.
1.
LEFT (Position 1).
In this position, the light produces a left arrow
flashing pattern, instructing traffic to move left.
2.
CENTER OUT (Position 2).
In this position, a center out flashing pattern is
produced, instructing traffic to move around either side of the
vehicle.
3.
RIGHT (Position 3).
In this position, the light produces a right arrow
flashing pattern, instructing traffic to move right.
B.
WARN switch.
When this switch is pressed, an alternating pattern is
produced. The four middle lights activate alternately with the two
outside lights on each side. The slide switch will override this
pattern.
C.
AUX switch.
1.
When this switch is pressed, external lamps
alternately flash at a constant rate. The wiring configuration
determines the flash combination of the external lamps. The slide
switch will override the external lamp pattern when the AUX
switch is depressed, but will not override the AUX OUT terminal
output.
2.
If connected, the seven-position connector’s AUX
OUT connection provides a ground to activate a user-supplied
relay to control an external device.
D.
FAST switch.
When this switch is pressed, the flash rate of the selected
directional or WARN pattern will increase. The rate of the AUX
switch function is not affected.
Figure 4.
OFF
290A2542-40B
331102
SignalMaster
TM
FEDERAL SIGNAL CORPORATION
WARN
AUX
FAST
LOW
