ComSonics Inc. 2007VMD Manual Do Utilizador
Qualifier X-Ray
8
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Install the VMD Power Harness
Connect the RED lead to the vehicle (+12V) ignition or accessory fuse block cir-
cuit. Connect the BLACK lead to the vehicle ground. A 2-ampere safety fuse is
used in the red lead.
Connect the power harness to the VMD.
The red Standby indicator is on with power applied and the VMD Power Switch
set to OFF.
Test the VMD Installation
Important: FCC licensing may require the VMD to operate on one of the alter-
nately provided transmit frequencies. Refer to the Qualifier Transmitter Licens-
ing section on our website at ‘www.comsonics.com/downloads.html’ for applica-
tion instructions and templates.
Warning: The Dual Band Antenna must be properly mounted on the vehicle and
connected to the VMD before performing this test or operating the Qualifier sys-
tem. Improper operation of the system may result in permanent damage to the
VMD and is not covered under warranty.
Push the VMD power switch to the ON position and wait a few seconds for the
VMD to initialize. Momentarily press the Test button and the yellow Transmit indi-
cator comes on for a few seconds as the VMD generates the output power signal
to the antenna.
Check / Select the VMD Transmit Frequency
With the VMD power switch in the ON position and the green Power indicator
illuminated, press and hold the Test button for 2 seconds. When the button is
released, the orange Receive indicator flashes a pattern to display the current the
transmit frequency. One of the following patterns repeats for 10 seconds.
One flash and a pause
Connect the RED lead to the vehicle (+12V) ignition or accessory fuse block cir-
cuit. Connect the BLACK lead to the vehicle ground. A 2-ampere safety fuse is
used in the red lead.
Connect the power harness to the VMD.
The red Standby indicator is on with power applied and the VMD Power Switch
set to OFF.
Test the VMD Installation
Important: FCC licensing may require the VMD to operate on one of the alter-
nately provided transmit frequencies. Refer to the Qualifier Transmitter Licens-
ing section on our website at ‘www.comsonics.com/downloads.html’ for applica-
tion instructions and templates.
Warning: The Dual Band Antenna must be properly mounted on the vehicle and
connected to the VMD before performing this test or operating the Qualifier sys-
tem. Improper operation of the system may result in permanent damage to the
VMD and is not covered under warranty.
Push the VMD power switch to the ON position and wait a few seconds for the
VMD to initialize. Momentarily press the Test button and the yellow Transmit indi-
cator comes on for a few seconds as the VMD generates the output power signal
to the antenna.
Check / Select the VMD Transmit Frequency
With the VMD power switch in the ON position and the green Power indicator
illuminated, press and hold the Test button for 2 seconds. When the button is
released, the orange Receive indicator flashes a pattern to display the current the
transmit frequency. One of the following patterns repeats for 10 seconds.
One flash and a pause
frequency 1 = 27.45 MHz
Two flashes and a pause
frequency 2 = 27.47 MHz (factory default)
Three flashes and a pause
frequency 3 = 27.49 MHz
While the code is flashing a different transmit frequency can be selected. Press
the Test button to step to the next frequency. The selection sequence wraps from
frequency 3 back to frequency 1.
The VMD returns to normal operating mode after the indicator flashes the code
sequence for 10 seconds. The displayed transmit frequency is then stored in the
VMD’s memory. The transmit frequency setting is retained until it is changed by
the above described method. Removing the power harness does not affect the
transmit frequency setting.