Premises Site Preparation For Fiber Optics
beginning installation of fiber optic cables and hardware in a premises
installation, the site must be properly prepared for the installation
of fiber optic cables, hardware and transmission equipment.
Premises Support Structures
are numerous structures used for the securing of fiber optic cable in
premises installations making generalizations difficult. Cable may be
hung on appropriate hangers, laid in trays or pulled in conduit or
Install support structures for fiber optic cable
installations before the installation of the fiber optic cable itself.
These structures should follow the guidelines of TIA/EIA 569-A and
NECA/BICSI 568-2001. Allow for future growth in the quantity and
size of cables when determining the size of the pathway. Follow all
cable bend radius requirements.
Do not install a fiber optic cable
in a conduit or duct that already contains cabling, regardless of the
cable type. Existing or new empty ductwork can be modified to
accept several different installations by the placement of innerduct
Removal of Abandoned Cables
directed by the owner or other agency that unused cables are reserved
for future use, remove abandoned optical fiber cable (cable that is not
terminated at equipment other than a connector and not identified for
future use with a tag) as required by the National Electrical Code or
other local codes. At the discretion of the owner of the site, the
contractor may be requested to remove other cables (e.g. copper
communications or power cables) in addition.
Removal of cables is
much more time consuming than installation, as each cable must be
identified and carefully removed to prevent damaging other cables. No
cable should be cut for removal unless it is positively identified as
one to be removed.
All removed cables should be recycled properly
as most cable has significant scrap value, not only for any copper
conductors but for other metallic elements and even plastics.
premises cabling requires firestopping at all penetrations.
Telecommunications firestopping shall comply with applicable codes and
standards, including TIA/EIA 569-A-Annex A and NECA/BICSI 568-2001.
penetrations shall be protected by type-approved firestops. Fire
stopping compounds and devices shall be used whenever a fire separation
has been breached by an installation.
In most geographical
locals the breaching of a fire separation will require physical
monitoring until it has been repaired.
Check with the “Authority Having Jurisdiction” for specific
requirements on the project before commencing work.
fiber optic equipment will require proper power at the locations of the
equipment. Power must be high quality power, protected for surges and
splikes, and generally must have appropriate backup capacity to prevent
loss of communications during power loss. Consult with the site owner
and appropriate electrical contractors to plan electrical power
Grounding and Bonding
cabling and components must be grounded and bonded. Ground systems
shall be designed as specified by the NEC or other applicable codes and
standards (ANSI/TIA/EIA 607-A, NECA-BICSI-568-2001).
most fiber optic cables are not conductive, any metallic hardware used
in fiber optic cabling systems (such as wall-mounted termination boxes,
racks, and patch panels) must be grounded.
Conductive cables require proper grounding and bonding for applicable conductors.
Fiber optic cables should be specified with colored jackets per industry standards
which indentify the cables as fiber optic cables and indicate the type
of fiber in the cable. All fiber optic cables should be
marked at each end with identification numbers that will indicate on
documentation where the cables terminate. Fibers withing the cables
should be identified by color codes also. Cables should be tagged with
identification that they are fiber cables and proper handling is
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