Choosing Fiber Optic Patch Panels
When surmounting trouble rises, an optic fiber technician must
choose the most suitable patch panel for a particular situation.
That technician must recognize that when it comes to easy
installation, proper termination and long term maintenance, not
all patch panels are created equally. Optic fiber is robust and
therefore deserves some special treatment. For example: if a
horizontal copper cable is damaged, one user will be affected.
If a backbone fiber goes down, it can take a lot of users down
with it. This is why using fully enclosed connecting hardware
for optic fiber is crucial. This is where the technician must
choose between using wall-mounted or rack-mounted hardware. The
optic fiber density required will most likely influence the
technicians choice between the wall-mounted and rack-mounted
connectivity. Many technicians will choose to use fiber patch
cables. Trust your technician to know what's best.
Wall-mounted enclosures are suitable for up to 24 optic fibers,
although with small form factors and high density connectors,
can extend the fiber optic cable count to as many as 144.
Wall-mount enclosures also offer the benefit of reduced floor
space requirements. Rack-mounted optic fiber enclosures can be
used with higher fabric counts or depending on the proximity to
communications equipment, where rack-mounted optic fiber
enclosures are preferable. 1U enclosures can handle up to 24
optic fiber cables with ST or SC connectors, or up to 48 optic
fibers by using small form factor connectors. For extra
protection, 2U to 4U enclosures can be used to handle up to 144
optic fiber connections.
A 12 fiber MPO connector can speed installation time and
increase the concentration of connection hardware. The factory
terminated and tested cassettes take care of breaking out the
optic fibers from the MPO connectors to ST, SC, or MT-RJ
connectors. The MPO cassettes can double the concentration that
are possible in rack-mount enclosures - up to 72 optic fibers in
a 1U enclosure and 288 optic fibers in a 4U enclosure - making
these optic fibers perfectly fit to meet high density
applications, such as data center's and storage area networks.
Accessibility is a concern for long term maintenance when
choosing a rack-mount enclosure. The 1U enclosures may have a an
access panel to reach the rear optic fibers, while larger
enclosures may have a removable rear cover with adequate room
inside to make changes or perform repairs. Strain relief and
loop management for incoming cables must be provided,
nonetheless management devices should be small enough as to not
interfere with access to the optic fibers. Cable management for
patch cords should be provided on the front of the enclosure
with clear front covers and labeling arranged to ease moves,
adds and changes and by ensuring that port identification is not
obscured by patch cords.
Since copper patch panels need to be strong enough not to flex
too much as the cables are punched down. The rolled edges on the
panel sheet metal stock help to make the panels rigid. Copper
patch panels should provide 24 ports in a 1U height or 48 ports
in a 2U height. It's very important to make sure that the
modular jacks and circuit traces on the panels are protected
from debris that can short out circuits. All cable management
systems must be easy to use and maintain to avoid any potential
problems.