Mitel 5212 - Manual (Page 11)

Mitel ® Model 5212/5224 IP Endpoint User Guide for Inter-Tel ® 5000 Systems iii
Maintenance and Repair
There are no user serviceable parts inside the phones. For repairs, return the phone to an
authorized Inter-Tel dealer.
Power Requirements
The endpoint requires either one of the following power supplies:
• Mitel 48-volt DC Ethernet power adaptor 100–240 volt AC 50–60Hz (ES)—part number
50005301
• An industry-standard IEEE 802.3af Power over Ethernet (PoE) power supply unit
If your endpoint uses a centralized PoE power supply unit, do not use the 48-volt DC Ethernet
power adaptor. If necessary, contact your system administrator for assistance before connecting
your endpoint to the centralized power source.
Make sure the endpoint is plugged into an uninterruptible power supply (UPS). If your endpoint is
plugged into the UPS and the power fails, it should stay powered on for about 10 minutes. If the
endpoint is not plugged into a UPS and the power fails, the current call is dropped and you will not
be able to use the endpoint until the power is restored.
Software Updates
The Model 5212/5224 may require occasional software updates when new versions are available.
The endpoint is configured to download the updates automatically. Contact your system
administrator for more information.
NOTE
Changes or modifications not expressly approved by Inter-Tel may void the user’s
right to operate the equipment.
CAUTION
To avoid damaging the endpoint, make sure the endpoint is connected to the proper power supply
before powering on. Contact your system administrator for more information.
CAUTION
To avoid damaging the endpoint, Do not use your endpoint or disconnect it from the power supply
while it is updating software.