Issue link: https://www.e-digitaleditions.com/i/1066130
18 I ICT TODAY 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 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).