n Do not block the air vents or place the unit too close to a wall or
other obstacle.
n Guard against foreign objects (staples, etc.) falling or blowing into
the box, or liquids being spilled into it.
n Do not expose the system to excessive dust or moisture.
n The fans of the expansion boxes have a dust filter. You have to
check the dust filter for dirt at least once a year. More frequent
checks may be necessary depending on the operating conditions.
If the dust filter is dirty, you must replace it.
A dirty dust filter blocks the input air stream and increases the
temperature in the box, which may shorten the life of the
hardware components. For instructions, refer to How to Check
and Replace the Dust Filter of an Expansion Box on page 50.
Safety Precautions for Using AutoBox/Tandem-AutoBox in
a Vehicle
To avoid damage to the AutoBox/Tandem-AutoBox and to achieve
safe and trouble-free operation, the following special guidelines have
to be observed.
Objective
n Turn off the engine while connecting or disconnecting the car
battery. Even a brief disconnection of the battery while the engine
is running results in a load dump of the car generator producing
hazardous voltages of more than 100 V.
n Only valid for AutoBox up to Version 3.0 and Tandem-AutoBox up
to Version 4.0:
Double check the supply voltage polarity of the AutoBox/Tandem-
AutoBox. Reverse polarity will immediately destroy the
AutoBox/Tandem-AutoBox power supply even if the remote
control input is turned off.
n Do not block the air intake of the fan on the rear side, and provide
sufficient space for free air flow.
n Do not operate the AutoBox/Tandem-AutoBox for extended
periods of time when the cover is removed.
Guidelines
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Safety Precautions for Using AutoBox/Tandem-AutoBox in a Vehicle
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DS1103 Hardware Installation and Configuration November 2014
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