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This ISP74 Intelligent Strobe Power Supply can be installed in
many different types of vehicles. The guidelines for the installation
of this product are written so that no matter what vehicle is being
used, the installation and operation of the ISP74 will be simple
and straight forward.
Section 1: Selecting a mounting location
A good choice for a mounting area would be a trunk or similar
compartment. However, due to the wide variety of vehicles onto
which the ISP74 can be installed, this is not always possible. The
following guidelines will help the installer select an acceptable
alternative:
•
The ISP74 should be mounted on a metal surface to aid
heat dissipation. Be sure that this surface is not one that
either generates or is exposed to excessive heat during
normal operation of the vehicle.
•
Do not select a location where the ISP74 will be exposed
to potential damage from any unsecured or loose
equipment in the vehicle.
•
Be sure the area selected will not allow the ISP74 to be
exposed to water.
•
When routing the ISP74’s wires, it is important to choose
a path that will keep the wires away from excessive heat
and from any vehicle equipment that could compromise
the integrity of the wires (ex. trunk lids, door jams, etc.).
•
Be sure your mounting location does not block the
cooling fan in the rear of the unit. (Fig. 1)
•
When the best mounting location has been determined,
securely fasten the ISP74 to it’s mounting surface using
the supplied hardware.
IMPORTANT! All customer supplied wires, that connect to
the positive (+) terminal of the battery, must be sized to
supply at least 125% of the maximum operating current, and
fused “at the battery” to carry the load.
WARNING!
When extending the communication wires
(BLUE & GREY), use either the Whelen 25ft cable (P/N 46-
9641638-250) or similar “twisted pair” wires.
Caution:As it will be necessary to drill holes into the
mounting surface, the installer MUST be sure that no
vehicle components or other vital parts could be
damaged by the drilling process. Check both sides of
the mounting surface before drilling begins.
Section 2: Operating Instructions:
The ISP74 has been designed to emulate the operations of four
different types of power supplies:
Alternating Outlets
. . . . . . . . . . . . . . . . . . . . . Alt. 2X2
Simultaneous Outlets (by pairs)
. . . . . . . .Simul. 2X2
Simultaneous Outlets
. . . . . . . . . . . . . Simul. 2X1X1
S.C. (Serial Communication)
. . . . . . . . . . . . . Custom
Select the desired operational mode by configuring dip switches
1, 2 & 5, located on the front panel of the power supply. The use of
dip switches 3 & 4 is explained in the “Hi-Lo Power” section.
The following will explain how to place the ISP74 into each of
these respective modes, as well as outline the operational
procedures for each mode.
Emulation Modes
Mode 1: Alternating Outlets (default configuration)
Dip Switches
Dip Switch configuration for Alternating Outlet-mode:
Dip Switch 1
-
OFF
Dip Switch 2 -
OFF
Dip Switch 5 -
OFF
Control Wires
In this configuration, ap12VDC to the control wires (using
customer supplied switches) will have the following results:
Control Wire #1 =
Outlets 1 & 2 enabled
Control Wire #2 =
Outlets 3 & 4 enabled
Control Wire #3 =
All Outlets enabled
Control Wire #4 =
(See Section 3:Hi/Lo Power)
Flash Patterns:
See Section 4.
Mode 2: Simultaneous Outlet Mode
Dip Switches
Dip Switch configuration for Simultaneous Outlet-mode:
Dip Switch 1 -
ON
Dip Switch 2 -
OFF
Dip Switch 5 -
OFF
Control Wires
In this configuration, ap12VDC to the control wires (using
customer supplied switches) will have the following results:
Control Wire #1 =
Outlets 1 & 3 enabled
Control Wire #2 =
Outlets 2 & 4 enabled
Control Wire #3 =
All Outlets enabled
Control Wire #4 =
See Section 3: Hi/Lo Power
Flash Patterns:
See Section 4.
