|
Fiber optic cable represents the pinnacle of high-speed data
communication mediums. Fiber optic cable has unparalleled
information bandwidth carrying capacity and has the lowest
signal attenuation of any other medium. Because of the Low loss, high bandwidth properties of
fiber cables they
can be used over greater distances than copper cables. In
data networks this can be as much as 2km without the use of
repeaters. Their light weight and small size also make them
ideal for applications where running copper cables would be
impractical and, by using multiplexers , one
fiber could
replace hundreds of copper cables. This is pretty impressive
for a tiny glass filament, but the real benefit in the data
industry is its immunity to Electro Magnetic Interference
(EMI), and the fact that glass is not an electrical
conductor.
Because fiber is non-conductive it can be used where
electrical isolation is needed, for instance, between
buildings where copper cables would require cross bonding to
eliminate differences in earth potentials. Fibers also pose
no threat in dangerous environments such as chemical plants
where a spark could trigger an explosion. Last but not least
is the security aspect, it is very, very difficult to tap
into a fiber cable to read the data signals.
There are many different types of fiber cable, in which
the three main sizes that are used in data communications
are 50/125, 62.5/125 and 8.3/125 micron cables .The numbers
represent the diameters of the fiber core and cladding,
these are measured in microns which are millionths of a
meter. Recently the 62.5 has become the more popular
choice. The number of cores in one cable can be anywhere from
4 to 144.The 8.3/125 micron is a single mode cable .The
length limits for Gigabit Ethernet over 62.5/125 fiber has
been reduced to around 220m and now using 8.3/125 may be the
only choice for some campus size networks.
We are experienced in the design,
installation, termination and testing of every aspect of
fiber optic systems. |
