This Standard specifies requirements for data center and telecommunication infrastructure including single tenant enterprise data centers and multi-tenant Internet hosting data centers.  Specifications are provided for very small data centers to data centers that occupy multiple building floors or rooms.

ANSI/TIA-942-A “Telecommunications Infrastructure Standard for Data Centers”  was developed by the TIA TR-42.1 Commercial Building Cabling Subcommittee and published in August, 2012. TIA-942-A  incorporates the contents of the previous edition TIA-942 Standard and its two addenda that recognized 75Ω coaxial cabling  for longer horizontal cabling runs originating from the MDA, provided revised requirements for temperature and humidity, recognized category 6A cabling , and revised the Tier references.  Other new content includes:
  • Topology terminology harmonized with TIA-568-C-0
  • New minimum horizontal and background media recommendations
  • Introduction of the Intermediate Distribution Area (IDA) into the data center topology
  • Addition of a new clause addressing energy efficiency
  • Allowance for active equipment in the zone distribution area (ZDA) have been removed
  • References to new TIA Standards provided
ANSI/TIA-942-A Content
  • Data Center Design Overview
  • Data Center Cabling System Infrastructure
  • Data Center Telecommunications Spaces and Related Topologies
  • Data Center Cabling Systems
  • Data Center Cabling Pathways
  • Data Center Redundancy
  • Annexes addressing Cabling Design Considerations, Access Provider Information, Coordination of Equipment Plans with Other Engineers, Data Center Site Selection and Building Design Considerations, Data Center Infrastructure Tiers, and Data Center Design Examples


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