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8528 Telephone User Guide – Issue 2, June 2010 Page iii
Power Requirements
When a PKM IM is attached to the telephone, the telephone requires the Mitel Universal 24 VDC power adapter, part
number 50005300.
If necessary, contact your system administrator for assistance before connecting the PKM IM to the centralized power
source.
Make sure the PKM IM is plugged into an uninterruptible power supply (UPS). If the PKM IM is plugged into the UPS
and the power fails, it should remain powered on for about 10 minutes. If the PKM IM is not plugged into a UPS and
the power fails, the current call is dropped and you will not be able to use the telephone until the power is restored.
Software Updates
The telephone may require occasional software updates when new versions are available. The telephone is
configured to download the updates automatically. Contact your system administrator for more information.
Product Disposal Instructions
This symbol indicates that the product is classified as electrical or electronic equipment and should not be disposed of with
other commercial or household waste at the end of its working life. For appropriate disposal and recycling instructions,
contact your local Mitel provider.
The Waste of Electrical and Electronic Equipment (WEEE) Directive (2002/96/EC) was established by the European Union to
minimize negative impact on the environment, control hazardous substances, and curtail landfill expansion by using the best
available recovery and recycling techniques.
CAUTION
Telephone Damage Hazard. To avoid damaging the telephone or Programmable Key Module Interface Module
(PKM IM), make sure the PKM IM is connected to the proper power supply before powering on. Contact your system
administrator for more information.
CAUTION
Telephone Damage Hazard. Do not use your telephone or disconnect it while it is updating software.