TIA/EIA-568-A is a commercial building telecommunications cabling standard
Planning and installing of structured wiring systems
Cable specification, performance and installation requirements
Physical star topology
Cabling divisions
Horizontal
Backbone
Horizontal
Cabling installed between the telecommunications closet and wall outlet
Maximum distance of 295' from closet to outlet with 10' for workstation jumpers & 23' for cross connect jumpers and patch cords
Two wall outlets per workstation
One cable must be 4 pair UTP
Other cable can be any on of the recognized media
Recognized media
4 pair, 100 Ohm UTP
2 pair, 150 Ohm STPA
50 Ohm Coax, not recommended for new installations
62.5 µ Fiber
Backbone
Cabling between equipment rooms, entrance facilities and telecommunications closet
Conventionally, vertical shaft cable; but also used in a Star Topology in a campus type network
Recognized media
100 Ohm Multipair UTP
150 Ohm STPA
50 Ohm Coax, not recommended for new installations
62.5 µm Fiber
Single-mode Fiber
The information provided in the resources section is intended for reference only.
There is no guarantee, written or implied, regarding the accuracy of the
information provided.