are aimed to retain full backwards compatibility, all types
are fully interoperable.
In addition to understanding the IEEE Ethernet
PoE standards, there are other standards and codes that
are applicable to the ICT designer and installer when
faced with implementing a cabling system to transmit
both power and data. These should be added to every
contractor’s bookshelf:
TIA
• ANSI/TIA-862-B-2016, Structured Cabling
Infrastructure Standard for Intelligent Building Systems:
specifies minimum cabling requirements for
intelligent building applications (previously called
building automation system or BAS) that use IP
communication and accommodates other protocols
that are typically used between devices. Specific
content addresses recommended cabling components
and topology, architecture, design and installation
practices and test procedures.
• TIA-TSB-(Technical Systems Bulletin)-184-A-2017,
Guidelines for Supporting Power Delivery Over Balanced
Twisted-Pair Cabling: developed by TIA Subcommittee
TR-42.7 to provide guidelines focusing on managing
cable temperature rise to keep cables operating below
maximum temperature ratings.
• ANSI/TIA-569-D-2-2018, Additional Pathway and Space
Considerations for Supporting Remote Powering Over
Balanced Twisted-Pair Cabling: provides additional
pathway and space considerations for supporting
remote powering over balanced twisted-pair cabling.
BICSI
• ANSI/BICSI-007-2017, Information Communication
Technology Design and Implementation Practices
for Intelligent Buildings and Premises: developed
by the BICSI standards committee (consisting of
manufacturers, consultants, designers and architects).
This standard provides recommendations for design
and implementation of the structured cabling
system, as well as building system applications for
any size building or premise.
• ANSI/BICSI-005-2016, Electronic Safety and Security
(ESS) System Design and Implementation Best
18 I ICT TODAY
Practices: provides the security professional with the
requirements and recommendations of a structured
cabling infrastructure needed to support today’s
security systems, while providing the cabling design
professional information on different elements
within safety and security systems that affect the
cabling infrastructure design.
ISO/IEC (INTERNATIONAL STANDARDS)
• ISO/IEC TS 29125 (2017): Information Technology –
Telecommunications Cabling Requirements for Remote
Powering of Terminal Equipment: specifies the use of
generic balanced cabling for customer premises, as
specified in the ISO/IEC 11801 series, for remote
powering of terminal equipment. It provides
guidance on new cabling installations
and renovations.
• ISO/IEC 14763-2 (2012): Information Technology –
Implementation of Operation of Customer Premises
Cabling (Part 2: Planning and Installation): specifies
requirements for the planning, installation and
operation of cabling and cabling infrastructures
(including cabling, pathways, spaces, earthing and
bonding) in support of generic cabling standards.
NEC
• NFPA 70: National Electrical Code (NEC) 2017:
Article 725.144 Transmission of Power and Data:
addresses Class 2 and Class 3 circuits that
transmit power and data to a powered device and
includes ampacity Table 725.144, which provides
the maximum allowable ampacity of such cables
based on the size of the individual conductors
and the number of cables in a bundle.
Article 800 Communications Circuits, Section
800.3(H): requires that cables used in
communications circuits comply with Section
310.15(A)(3). The only cables permitted to
be used for communications circuits are
communications cables (i.e., Types CMP, CMR,
CMG, CM and CMX).