TP Guide Acronyms & Abreviations Flashcards
AHJ
Authority Having Jurisdiction
ANSI/TIA/EIA-942
Telecommunications Standards for Data Centers that provides structured cabling guidance for designing and building data centers
Dives
Cable runs that cause a significant difference in cable length at the terminating point in comparison to the other cable runs of the same link
EDA
Equipment Distribution Area – is the location of equipment cabinets or racks in the HDA, (Horizontal Distribution Area) and is where the Rack/Cabinets reside
ER
Entrance Room – The space that is provider- and customer-owned, where it functions as the interface between the structured cabling from the data center and the inter-building cabling. Carrier equipment and Demarcation are located in this room.
ESD
Electrostatic Discharge
HC
Horizontal Crossconnect – is the distribution point for cabling from the NDAto the mechanical
termination, (patch panel), in the ZDA.
HDA
Horizontal Distribution Area – an area in a data centeror phase that serves as the distribution point for horizontal cabling and houses HC and equipment for connectivity to the ZDA and EDA. For AT&T Hosting Data Centers it is where LAN/San/KVM switches reside.
HVAC
heating, ventilation, and air Conditioning
IDC
insulation displacement contact
IDF
Intermediate Distribution Frame – A term used for a frame in Central Office, (CO), or Customer premise environments that cross-connects cable of all media types to individual user line circuits and may serve as a main distribution point for multipair cables from the MDF to individual cables connected to equipment in areas remote from these frames.
ISO/IEC 11801
International Standards Organization that specifies generic cabling for use within premises, which may comprise single or multiple buildings on a campus. It covers balanced cabling and optical fiber cabling.
MC
Main Cross-connect – Central point of distribution for structured cabling system for the core data center and phase that the MDA is servicing
MDA
Main Distribution Area – (formerly MDF) – is the location of the MC that is centrally located to avoid exceeding maximum distances restrictions and includes the HC when equipment areas are directly served from the MDA. Every data center shall have at least on MDA. For AT&T Hosting Data Centers it is where the Routers, Backbone LAN/SAN Switches reside.
MDF
Main Distribution Frame – A term used for a frame in Central Office, (CO), or Customer premisis environments that is a signal distribution frame for connecting equipment, (inside plant) to cables and subscriber carrier equipment (outside plant).
