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HORIZONTAL Distribution...................Coding.......Print PDF
EC Equipment Bonding Conductor – 
A copper conductor used to bond RK’s or PROT’s to the TBG or TMGB.
ER Equipment Room – The room where electronic circuits originate or are modified,
the room containing equipment racks, trays and wall fields.
GP Grounding Pathway – A supporting WW for bonding conductors.
HC Horizontal Cable (i.e. Distribution Cable) – Fiber/Copper telecommunications media
made up of grouped strands or wire enclosed within a sheath,
used to transport electronic circuits from TC’s to the WS.
HP Horizontal Pathway - A conduit or cable tray(plastic or metal),
necessary to support Horizontal Fiber/Copper cables and wire.
PC Patch Cord – 
A pair of Fibers made up to a specific length for patching circuits from one PP to another PP.
PP Patch Panel – A frame for mounting circuit connectors
RK Rack – A frame for mounting Electronics and PP’s.
SWP Station Wire Pack – The wire (UTP/ScTP) or fiber drop installed in packs of (6), used to transmit electronic circuits from the TC to the TP. 

SW extends the circuit to the WS with out patching.

TBB Telecommunications Bonding Backbone -
A large bonding conductor extending from the TMGB, out to building TGB’s.
TC Telecommunications Closet - The room where electronic circuits are modified,
the room containing equipment racks, trays and wall fields, before connecting circuits to the WS.
TGB Telecommunication Grounding Busbar – 
A connection base used for bonding Telecommunications EC.
TP Transition Point – A cabinet located close to WS’s, housing termination hardware,
providing a break point for home run SW(UTP, ScTP or Fiber) between the TC and the WS.
(This unit replaces the widely used "WC" cross connect cabinet).
WC Wire Closet – A closet or cabinet containing a WF
for extending Voice Grade circuits to WS's located outside the data limits of any ER or TC.
WF Wall Field – A surface used to mount TH.
WW Wireway – 
A conduit or cable tray(plastic or metal), necessary to support Fiber/Copper cables and wire.
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