Aastra DT4X3 User Manual page 9

Cordless phones for mx-one
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User Manual
Cordless Phones for MX-ONE™
Environmental Requirements DECT Handset
Always keep and handle your products with care and keep them in a clean and dust-free place. Proper
use and care will prolong the product life. Use a soft absorbent tissue or cloth to remove dust, dirt or
moisture.
Always ensure that the phone, battery and charger are used and operated in the environment for which
they are designed.
Only use the handset in temperatures between -10° C to +55° C (14° F to 131° F).
IMPORTANT: The EX classified handsets are only allowed to be used in temperatures between -10°
C to +40° C (14° F to 104° F) in hazardous area.
Avoid exposing the handset for direct sunlight or close to other heat sources.
Avoid volume levels that may be harmful to your hearing. Exposure to excessive sound pressure from
a handset's earpiece or headset may cause permanently hearing loss.
Do not expose the handset to open flame or lit tobacco products..
Keep the handset away from excessive heat and moisture.
Avoid sudden temperature changes to prevent condensation in the handset. It is recommended to put
the handset into an air tight plastic bag until the temperature is adjusted, for example, when entering or
leaving a cold/heated building on a warm/cold day.
Protect your handset from aggressive liquids and vapours.
The handset may retain small metal objects around the mouthcap or earcap region.
Keep the handset away from strong electromagnetic fields.
Do not place a cold handset in a charger.
Do not attempt to disassemble or alter any part of the phone, the charger(s) or the battery-pack
Disassembly or alteration may result n electrical shock or irreversible damage to the equipment. Only a
qualified service personnel or an authorized Aastra partner should conduct internal inspections,
alterations and repairs.
Do not drop, throw or bend your products. This may cause malfunction or electric shock.
Do not paint your product
Do not use your product in an area where a potentially explosive atmosphere exists, unless the product
has been specifically designed and officially approved for such environments.
Power Supply
Connect the AC power adapter of the charging unit only to the designated power sources as marked on
the charger.
Make sure the cord is positioned so that it will not be subjected to damage or stress.
To reduce risk of electrical shock, unplug the chargers from any power source before attempting to
clean or move it.
The AC power adapters must not be used outdoors or in damp areas.
Never modify the cord or plug. If the plug will not fit into the outlet, have a proper outlet installed by a
qualified electrician.
Limit the distance between the mains socket and the cordless phone when charging for easy
accessibility.
As an energy saving measure, disconnect the charger from the main socket after charging.
When unplugging the mains adapter from the power outlet, make sure that your hands are dry and
ensure that you hold the solid portion of the mains adapter
Do not pull on cables.
Ba
ttery and charging
Do not immerse the battery into water. This could short-circuit and damage the battery.
Do not expose a battery to an open flame. This could cause the battery to explode.
Do not allow the metal contacts on the battery to touch another metal object. This could short-circuit
and damage the battery.
Do not leave a battery where it could be subjected to extremely high temperatures, such as inside a car
on a hot day.
1424-EN/LZT 103 089 A3 2012-02-23
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