Tips - Defining Which Type Is Optimal - Tadiran Telecom Aeonix T200M Series Installation Manual


T200M Series Installation Manual - Aeonix

Tips - Defining which Type is Optimal

................................................................................................................
The phone requires external power at all times. An AC wall power adapter (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 adapter. 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,
is a major advantage of 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.
Supplying Power to the Phone 43