TIA TSB-184:2009

$29.25

Guidelines for Supporting Power Delivery Over Balanced Twisted-Pair Cabling

Published By	Publication Date	Number of Pages
TIA	2009	26

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Category: TIA

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Description

The purpose of this document is to provide guidelines that will
enable the support of a wide variety of safety extra low voltage
(SELV) limited power source (LPS) applications using remote power
supplied over balanced twisted-pair cabling. Examples of such
applications include LAN devices supported by IEEE Std 802.3 DTE
Power, wireless access points, TIA-862 building automation and
security devices like remote cameras, IP telephone and multimedia
devices supported by IEEE Std 1394-2008.

The guidelines in this TSB are considered to be in addition to,
and not in place of, the infrastructure specified in the
ANSI/TIA-568-C series of Standards. The TSB covers the transmission
and electrical parameters needed to support power over category 5e
or better balanced twisted-pair cabling. The guidelines address
various environmental conditions related to the installed cabling,
bundled cabling, cabling in conduit, different cabling categories
and cable types, and how these may impact the capability of
balanced twisted-pair cabling to support remote powering. This TSB
provides additional guidelines with respect to:

a) parameters needed for remote powering;

b) references to safety standards;

c) different installation conditions that require special
considerations;

d) application considerations;

e) mitigation considerations; and

f) cabling configurations and related field test
considerations

The cabling systems detailed in this TSB are designed to be used
to support SELV power, as defined in IEC 60950-1. Safety
(electrical, fire, etc.) and electromagnetic compatibility (EMC)
requirements are outside the scope of this TSB.

Additional information