850nm laser-optimized 50/125-micron multimode fiber
10baseFL
fiber
Multimode fiber
Uses both half and full duplex transmission Uses multimode fiber optic cabling to transmit data at a speed of 100 Mbps
Backbone Cabling
Backbone cabling
cabling
This rule does not apply to other network protocols or Ethernet networks where all fiber optic cabling or a combination of a fiber backbone with UTP cabling is used. If there is a combination of fiber optic backbone and UTP cabling, the rule is simply translated to a 7-6-5 rule.
im going to assume your talking about computer networking which in this case would be RISER. In ceiling would be plenum
jjj
Fibre optic cabling is preferred for backbone cabling, particularly over large distances. But whichever type of cabling you use, cable that passes from floor-to-floor or through plenum areas must be fire-rated. Optical fibre non-conductive riser (OFNR) and/or optical fibre non-conductive plenum (OFNP) are the obvious choices here.
- The first major standard describing a structured cabling system for computer networks was the TIA/EIA 568-A in 1995.