IMPORTANT
5
BusinessPhone 250 / BusinessPhone 50
Portable DT400 / DT410 / DT420 / DT430
IMPORTANT
GENERAL
This section describes the information that is important to
know before you use the portable phone and the functions
described.
Note: This User´s guide describes the supported BusinessPhone
250/50 functions together with the most commonly used
telephone specific functions. All telephone specific functions are
listed in the menu structure.
PREPARING FOR USE Before using your portable the first time you have to charge
and connect the battery, see section “Installation”.
Note: Place the portable in the charger and charge it for at least
one hour before using it the first time.
GUIDELINES Consider these suggestions and guidelines to keep your
telephone in good shape and working properly.
Intrinsic safety The portables DT400, DT410 and DT420 are IP54 classified,
which means that they are not specified as intrinsically safe.
Do not use them in hazardous areas.
Only the DT430 is designed for environments requiring
intrinsically safe equipment and therefore IP64 and EX-
classified.
Battery handling The NiMH battery contains environmental polluting
material. If damaged, return it to a collecting point.
Note: Only use the charger that is delivered with your portable
to charge the battery.
(continued)
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