Tadiran Telecom Coral FlexiCom CoraliPx FlexSet-IP 280S, Руководство по установке

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46 Supplying Power to the Phone Coral FlexSet-IP 280S Installation Manual
Coral FlexSet-IP 280S Installation Manua
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Tips - Which Type is the Best?
The FlexSet-IP 280S requires external power at all times. An AC wall power adaptor
(type C) for powering the phone is the most obvious and immediate means; it is both
the easiest from an installation standpoint and currently the most cost-effective
approach to providing power to the phone. Adding power ports (types A or B) to an
existing LAN can be significantly more costly than the simple AC wall adaptor.
Nevertheless, the added convenience of reducing the amount of cables to the desktop,
or placing a phone where power is not readily available from the building power
wiring and receptacles, creates a strong argument for using power over the data
network. Powering over the LAN (type A and B or IEEE 802.3AF standard)
infrastructure will reduce wiring costs as equipment manufacturers offer more choices
in standalone LAN power hubs and integrated power/data switches.
Powering the phone over the Ethernet offers the following advantages:

If the LAN has power backup, voice services can stay online along with data
in the event of a power failure.
 Less electrical cabling is required for new buildings, office relocations,
re-configurations, and personnel moves.

Only one cable needs to be routed to the phone desktop, with power to the
phone being an integral part of the centrally managed IP infrastructure.
 Only a single network connection is required to place both the phone and the
desktop PC on the LAN - no ports or power receptacles are necessary.