INSTALLATION
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BusinessPhone 250 / BusinessPhone 50
Portable DT400 / DT410 / DT420 / DT430
DT430 The DT430 telephone is designed for usage in rough
environments. This portable is safe to use in explosion risk
environments (EX-classification) and therefore is equipped
with a special battery.
Removing and fitting
the battery for
intrinsically safe phones
To remove and fit the battery, you have to use the screws at
the back of your phone, as shown below. You do not have to
use the ordinary plates to release and fasten the battery.
Use the screws on the back of the battery
Battery
performance
All portables are supplied with a high capacity nickel metal
hydride (NiMH) battery.
The table below indicates the performance.
Talk time Standby time Charge time
(hours) (hours) (minutes)
High capacity
NiMH battery: 10 100 60
Screws to
unlock or fasten
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