Valerie Maguire

 

The Mexican Subcommittee on Standards for Interconnection of Information Technologies is the organization responsible for developing telecommunications cabling Standards for Mexican IT infrastructure system users, designers, and specifiers. Recently, the Structured Cabling Working Group finalized Mexican Standard NMX-I-14763-2-NYCE for the planning and installation of generic cabling, which is harmonized with international Standard ISO/IEC 14763-2. So far, the working group has produced nine structured cabling-related Standards:

  • NMX-I-108-NYCE-2006: Telecomunicaciones – Cableado – Cableado estructurado – Puesta a tierra en sistemas de telecomunicaciones
  • NMX-I-132-NYCE-2006: Telecomunicaciones – Cableado – Cableado estructurado – Especificaciones de las pruebas de cableado balanceado – Parte 1: Cableado instalado
  • NMX-I-154-NYCE-2008: Telecomunicaciones – Cableado – Cableado estructurado – Cableado genérico residencial
  • NMX-I-248-NYCE-2008: Telecomunicaciones – Cableado – Cableado estructurado – Cableado de Telecomunicaciones para edificios comerciales – Especificaciones y métodos de prueba
  • NMX-I-279-NYCE-2009: Telecomunicaciones – Cableado – Cableado estructurado – Canalizaciones y espacios para cableado de telecomunicaciones en edificios comerciales
  • NMX-I-14763-1-NYCE-2010: Telecomunicaciones – Cableado – Cableado estructurado – Implementación y operación de cableado en edificios comerciales – Parte 1: Administración
  • NMX-I-24764-NYCE-2013: Tecnología de la información – Sistema de cableado genérico para centros de datos
  • NMX-J-C-I-489-ANCE-ONNCCE-NYCE-2014: Centros de datos de alto desempeño sustentable y energético – Requisitos y métodos de comprobación
  • NMX-I-14763-2-NYCE-2017: Tecnologías de la información-Implementación y operación de cableado estructurado - Parte 2: Planeación e instalación

The following two Standards, one for optical fiber cabling testing and one for telecommunication grounding networks, are currently under development by the Structured Cabling Working Group:

  • PROY-NMX-I-14763-3-NYCE, Tecnología de la información – Cableado estructurado genérico - Implementación y operación - Parte 3 – Pruebas del cableado de fibra óptica
  • PROY-NMX-I-30129-NYCE, Tecnología de la información – Redes de unión de telecomunicaciones para edificios y otras estructuras

Click here to purchase NMX Standards.

 

The meaning of many terms, symbols, and abbreviations that are referenced in optical fiber cabling and components Standards may differ from commonly recognized usage.

ANSI/TIA-440-C “Fiber Optic Terminology” was developed by the TIA TR-42.5 Telecommunications Infrastructure Terms and Symbols Subcommittee and published in July, 2017.  This Standard defines commonly used terms, symbols, and abbreviations for optical fiber applications.

ANSI/TIA-440-C Content

  • Terms and Definitions
  • Acronyms
  • Symbols

 

 

Recent manufacturing and design enhancements have expanded the capacity of multimode optical fiber to support transmission over a wider range of wavelengths, as well as support wavelength division multiplexing (WDM) technology.

TIA-492AAAE “Detail Specification for 50-µm Core Diameter/125-µm Cladding Diameter Class 1a Graded-Index Multimode Optical Fibers with Laser-Optimized Bandwidth Characteristics Specified for Wavelength Division Multiplexing” was developed by the TIA TR-42.12 Optical Fibers and Cables Subcommittee and published in June, 2016. This Standard provides detailed mechanical and performance requirements for the 50-µm core diameter/125-µm cladding diameter class 1a graded-index multimode optical fibers used as a component in the manufacture of OM5 optical fiber cable. These specifications include laser-optimized bandwidth characteristics specified for enhanced performance for wavelengths in the vicinity of 850 nm to 950 nm.

TIA-492AAAE Content

  • Background Information
  • Inspection Requirements
  • Assessment Tables
  • Annexes addressing Quality Conformance Inspection (QCI) Codes and Levels, Part-Number Codes for Multicellular Attributes, Surrogate Test Procedure, Chromatic Dispersion Specification for Wideband Multimode Fiber, Fiber Differential Mode Delay (DMD), Calculated Effective Modal  Bandwidth (EMBc) and Calculated Overfilled Modal Bandwidth (OMBc) Requirements, System, Modal Bandwidth, and Transmitter Considerations, Bandwidth Nomenclature Explanation, and References

Click here to learn more about OM5 optical fiber.

 

Automated Infrastructure Management (AIM) solutions are comprised of integrated hardware and software systems that automatically detect the insertion or removal of cords, support documentation of the cabling infrastructure and connected equipment, and enable management of the infrastructure and data exchange with other systems. AIM systems contribute to operational efficiency, facilitate cabling infrastructure and connected device administration, streamline facilities, IT, intelligent building, and other management processes and systems, and support business information systems covering asset tracking and asset management. Event notifications and alerts assist with maintaining physical network security.

ANSI/TIA-5048 “Automated Infrastructure Management (AIM) Systems – Requirements, Data Exchange and Applications” was developed by the TIA TR-42.6 Infrastructure Administration Subcommittee and published in June, 2017. This Standard is an adaption of ISO/IEC 18598 “Automated Infrastructure Management (AIM) Systems – Requirements, Data Exchange and Applications”, which defines core and auxiliary functions of AIM systems, with the following addition:

  • The chosen identification scheme for the items to be documented within the AIM software shall be compliant with TIA‑606‑C

ANSI/TIA-5048 Content

  • Automated Infrastructure Management (AIM) Systems
  • AIM Solutions: Business Benefits
  • AIM Solutions: Data Exchange Framework
  • Annexes addressing Hierarchy and Containment Rules, Field Descriptions, Implementation Requirements and Recommendations, and Optional Lower Level Data Exchange Framework

ANSI/TIA-5048 Functional Elements

AIM system include the following two functional elements:

  • Hardware that automatically detects the insertion and removal of cords and
  • Software that
    • collects and stores the resulting connection information,
    • relates the connection information to cabling connectivity information,
    • relates the cabling connectivity information to information from other sources, and
    • makes the connection information accessible to either an authorized user or to other systems

Siemon MapIT® G2 Next Generation Automated Infrastructure Management hardware and Siemon EagleEyeTM Connect software is an ideal way to provide real-time tracking and reporting of network-wide physical layer activity.

 

Proper administration of the telecommunications cabling plant can reduce the labor expense of maintaining the infrastructure, extend the useful economic life of the system, and provide more effective service to users. A well-planned administration system is independent of supported applications, which may change multiple times throughout the life of the cabling plant. Administration guidelines apply to owners, end users, manufacturers, consultants, contractors, designers, installers, and others involved in the administration of the telecommunications infrastructure.

ANSI/TIA-606-C “Administration Standard for Telecommunications Infrastructure” was developed by the TIA TR-42.6 Infrastructure Administration Subcommittee and published in June, 2017. Significant changes from the previous edition include:

  • TIA-606-B-1 content replaced with a reference to TIA-5048 (adaption of ISO/IEC 18598)
  • Additional guidelines for administration of cabling supporting remote powering, including cable bundle identifiers, added
  • The preference for an ISO/IEC TR 14763-2-1 compatible format for new administration systems was removed
  • Identifier schemes for telecommunications bonding and grounding system elements changed to align with TIA-607-C as follows:
    • BCT (bonding conductor for telecommunications) changed to TBC (telecommunications bonding conductor)
    • RGB (rack grounding busbar) changed to RBB (rack bonding busbar)
    • GE (grounding equalizer) changed to BBC (backbone bonding conductor)
    • TGB (telecommunications grounding busbar) changed to SBB (secondary bonding busbar)
    • TMGB (telecommunications main grounding busbar) changed to PBB (primary bonding busbar)
  • Table summarizing variables used in identifier formats added

ANSI/TIA-606-C Content

  • Classes of Administration
  • Class 1 Administration
  • Class 2 Administration
  • Class 3 Administration
  • Class 4 Administration
  • Optional Identifiers for Infrastructure Elements
  • Color-Coding Identification
  • Permanent Labels
  • Administration Systems Using Records, Linkages and Reports
  • Automated Infrastructure Management Systems
  • Annexes addressing Identification of Patch Cords, Equipment Cords, and Direct Equipment-to-Equipment Cables, Telecommunications Grounding System Identification Example, and Graphical, Symbology, Drawing Elements of Administration, and Administration of Remote Powering

ANSI/TIA-606-C Administration Systems

An administration system for telecommunications infrastructure within buildings and between buildings may include:

  • assigning identifiers to components of the infrastructure
  • specifying elements of information that make up records for each identifier
  • specifying relationships between these records to access the information they contain
  • specifying reports presenting information on groups of records, and
  • specifying graphical and symbolic requirements

ANSI/TIA-606-C Administration Classes

Four classes of administration are specified in this Standard to accommodate the wide range of complexity present in the cabling plant.  Class 1 contains the less stringent and Class 4 contains the most stringent administration requirements.  The size and complexity of the cabling plant are the most relevant considerations in determining the minimum class of administration.

The four classes of administration are:

  • Class 1 provides for the telecommunications infrastructure administration needs of a premises that is served by a single equipment room (ER)
  • Class 2 provides for the telecommunications infrastructure administration needs of a single building or of a tenant that is served by single or multiple telecommunications spaces (e.g., an equipment room with one or more telecommunications rooms) within a single building
  • Class 3 provides for the telecommunications infrastructure administration needs of a campus, including its buildings and outside plant elements
  • Class 4 provides for the telecommunications infrastructure administration needs of a multi-campus/multi-site system

An administration system may be managed using a paper-based system, general purpose spreadsheet software, special-purpose cable management software, or Automated Infrastructure Management (AIM) systems.

ANSI/TIA-606-C Elements

This Standard specifies an administration system for the following elements of a generic telecommunications infrastructure:

  • Cabling Subsystem 1, 2, and3 pathways and cabling
  • Telecommunications bonding and grounding
  • Spaces (e.g., entrance facility, telecommunications room, equipment room), and
  • Fire-stopping

 Representative Model of Typical Telecommunications Infrastructure Elements for Administration 

Click here for archive information on ANSI/TIA-606-B.

 

This Standard specifies requirements and recommendations for 75Ω broadband coaxial cabling, cables, cords, and connecting hardware that are used to support community antenna television (CATV, commonly referred to as cable television), satellite television, and other broadband applications. Allowed deployment topologies are the star topology defined in TIA‑568.0-D, bus and star topology, and multipoint bus topology. Also included are transmission requirements, mechanical requirements, and requirements related to electromagnetic compatibility (EMC) for cabling, cables and connectors, cabling installation and connector termination procedures, and field testing procedures.

ANSI/TIA-568.4-D “Broadband Coaxial Cabling and Components Standard” was developed by the TIA TR‑42.7 Copper Cabling Subcommittee and published in June, 2017. Significant changes from the previous edition include:

  • Updated references

ANSI/TIA-568.4-D Content

  • Topology
  • Cabling
  • Series 6 and Series 11 Link Performance
  • Coaxial Cable, Cords, and Connecting Hardware
  • Field Test Requirements
  • Annexes addressing Background Information for Coaxial Cabling Requirements and Multipoint Bus

ANSI/TIA-568.4-D Recognized Cables

The recognized 75 Ω coaxial cables are:

  • Series 6 dual-*, tri- or quad-shield,
  • Series 11 dual-*, tri- or quad-shield,
  • Trunk, feeder, and distribution cable (refer to ANSI/SCTE 15 for examples of these types of cables), and
  • Braided multipurpose cable (refer to ANSI/SCTE 74 for an example of this type of cable).

* Dual-shield  coaxial cable construction is commonly referred to as single tape and braid.

Click here for archive information on ANSI/TIA-568-C.4.

 

IEEE Std 802.3bv ”IEEE Standard for Ethernet Amendment 9: Physical Layer Specifications and Management Parameters for 1000 Mb/s Operation Over Plastic Optical Fiber” was developed by the IEEE P802.3bv Gigabit Ethernet Over Plastic Optical Fiber Task Force and approved by the IEEE-SA Standards Board on February 14, 2017. Unlike traditional multimode and singlemode optical fibers having glass cores, plastic optical fiber (POF) cables are constructed with 1mm diameter polymer cores. Step-index POF optical fiber performance is specified in IEC 60793-2-40 A4a.2. POF cabling systems have high mechanical flexibility and low cost over reduced operating distances and are commonly deployed in home, industrial, and automotive networks.

This amendment specifies the first Ethernet protocol operating over POF media and defines three 1000 Mb/s Ethernet physical layer (PHY) specifications:

1000BASE-RHA:  1000 Mb/s using 1000BASE-H encoding over duplex plastic optical fiber cable and red light (approximately 650 nm) wavelength transmission tailored for home network and other consumer applications

1000BASE-RHB:  1000 Mb/s using 1000BASE-H encoding over duplex plastic optical fiber cable and red light (approximately 650 nm) wavelength transmission tailored for industrial applications

1000BASE-RHC:  1000 Mb/s using 1000BASE-H encoding over duplex plastic optical fiber cable and red light (approximately 650 nm) wavelength transmission tailored for automotive applications

Goals and Objectives for 1000 Mb/s over POF operation:

  • Preserve the IEEE 802.3/Ethernet frame format utilizing the IEEE 802.3 MAC
  • Preserve minimum and maximum frame size of the current IEEE 802.3 standard
  • Support full duplex operation only
  • Support a data rate of 1000 M/bs at the MAC/PLS service interface
  • For the automotive environment:
    • Specify operation over at least 15m of POF with 4 POF connections
    • Specify operation over at least 40m of POF with no POF connections
  • For the home and industrial environment specify operation over at least 50m of POF with 1 POF connection
  • Maintain a bit error ratio (BER) better than or equal to 10-12 at the MC/PLS service interface
  • Specify optional Energy-Efficient Ethernet for 1000 Mb/s over POF

The IEEE 802.3 Gigabit Ethernet Over Plastic Optical Fiber Call-For-Interest Consensus Presentation can be found here: http://www.ieee802.org/3/GEPOFSG/public/CFI/GigPOF%20CFI%20v_1_0_small.pdf

The Project Authorization Request (PAR), approved on December 10, 2014, can be found here: http://www.ieee802.org/3/bv/P802_3bv_PAR_approved_121214.pdf

 

The extensive number and range of networkable devices available for deployment in today’s smart buildings create environments that are safer, healthier, more energy efficient, and more responsive to occupant needs and preferences than ever before. BICSI D033, “Information Communication Technology Design and Implementation Practices for Intelligent Buildings and Premises” is targeted for publication later this year and will identify best practices for integrating diverse applications and devices on the IT network. Key chapters will address media recommendations, cabling topologies, design considerations for applications supporting both data and power, device density and coverage area sizing, and pathway considerations. Supplemental information related to deploying lighting, digital signage, acoustic and intercom systems, metering and monitoring systems, and other special building applications will also be provided.

The topologies and media referenced in the draft BICSI D033 Standard are based on the horizontal and backbone cabling specifications appearing in TIA-568.0-D and ISO/IEC 11801‑1. Structured cabling supporting intelligent building applications in new installations shall be deployed in a hierarchical star topology and consist of a minimum of category 6/class E (category 6A/class EA recommended) balanced twisted-pair, laser-optimized multimode (i.e., OM3, OM4, and OM5) optical fibre, and all forms of singlemode optical fibre cabling.

The draft Standard emphasizes that a zone cabling design, which consists of horizontal cables run from the telecommunications room to a horizontal connection point or HCP (an intermediate connection point that is typically housed in an enclosure located in the ceiling space, on the wall, or below an access floor) provides a flexible infrastructure to accommodate current and future data, voice, building device, and wireless access point connections. Since spare ports are available at the HCP and individual cables only extend from the outlets at the HCP to building devices or outlets, zone cabling systems support rapid reorganization of work areas and equipment and simplify deployment of new devices and applications.

Detailed requirements for sizing and provisioning assist in the design and layout of entrance rooms, equipment rooms, telecommunications rooms, and telecommunications enclosures where cabling and equipment connections are made. Considerations for a wide range of cabling pathways (e.g., cable trays, J‑hooks and other non-contiguous pathways, conduit, raceways, ducts, poke-throughs and other in-floor systems, and access floors) aid in identifying the optimum pathway infrastructure system for various building system applications.

The key to a successful smart building deployment is the proper planning, design, and deployment of the cabling infrastructure. When published, BICSI D033 will be a valuable resource for intelligent building cabling best practices and the zone-based structured cabling architectures.

Click here to learn more about zone cabling for smart buildings. Click here to learn more about zone cabling for 60W PoE lighting systems.

 

“Specification for OSFP Octal Small Form Factor Pluggable Module” is currently under development by the OSFP MSA Group. OSFP is a “double-density” module and connector system similar to the QSFP+ system, but slightly wider and deeper to accommodate eight-lanes. The new module will be capable of 400 Gb/s transmission over 16 pairs of twinaxial conductors or optical fibers (8 x 50 Gb/s). The connector system enables modules consuming 12-15W of power to reside in a switch chassis with conventional airflow, which makes the system attractive for long range (i.e. 100 km) optical transceivers. The form factor allows 32 400 Gb/s ports per 1U  to enable 12.8 Tb/s per switch slot. OSFP to QSFP+ adapters will support backward compatibility between form factors.

An effort is being made to adopt a common management interface to be referenced in MSAs developed by among the OSFP MSA Group, QSFP-DD MSA Group, and the Consortium for On-Board Optics (COBO).

The project objectives are as follows:

  • High port density
  • High thermal capability
  • Accommodate full range of 400G optics
  • Future roadmap to 800G (2x400G-PAM4)
  • Enable 12.8 Tb/s in a 1U slot

Revision 1.0 of the OSFP MSA Specification, released on March 17, 2017, can be found here: http://osfpmsa.org/assets/pdf/OSFP_Module_Specification_Rev1.0.pdf

 

“QSFP-DD Specification for QSFP Double Density 8X Pluggable Transceiver” is currently under development by the QSFP-DD MSA Group. QSFP-DD is a “double-density” module and cage/connector system similar to the current QSFP system, but with an additional row of contacts providing for an eight-lane electrical interface. The new module will be capable of operating 25 Gb/s NRZ modulation or 50 Gb/s PAM4 modulation over 16 pairs of twinaxial conductors or optical fibers to support 200 Gb/s or 400 Gb/s aggregate bandwidth. Systems designed with QSFP‑DD connectors will be backwards compatible to support interoperability with existing QSFP modules, however, the QSFP‑DD connector will only support 200 Gb/s or 400 Gb/s aggregate speeds when mated with QSFP‑DD modules.

QSFP-DD MSA Group participants have developed an improved management interface and the MSA project may split into separate management interface and form-factor documents. It’s also possible that the OSFP MSA Group, the uQSFP MSA Group, and the Consortium for On-Board Optics (COBO) will adopt the improved QSFP-DD management interface.

The project objectives are as follows:

  • Expand the use of the QSFP form-factor
  • Specify a 2×1 integrated stacked cage and connector
  • Specify a SMT QSFP-DD connector
  • Enable 12W of power dissipation per module
  • Transmit speeds up to 50 Gb/s PAM4
  • Enable 14.4 Tb/s in a single switch slot

Revision 2.0 of the QSFP-DD MSA Specification, released on March 13, 2017, can be found here: http://www.qsfp-dd.com/wp-content/uploads/2017/03/QSFP-DDrev2-0-Final.pdf

Additional information on accelerating 400GbE adoption with QSFP-DD can be found here: http://www.qsfp-dd.com/wp-content/uploads/2017/03/QSFP-DD-whitepaper-15.pdf

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