FOSC 400 A4 and A8 Closure
These are the smallest of the FOSC 400 closures. The A8
is intended for low fiber count cable splices and
“tap-off” splices. Tap-off splices are those where
most of the fibers in a cable are “expressed” uncut
through the closure and only a few fibers are cut and
re-spliced to feed a building or Optical Network Unit
(ONU). The FOSC 400 A4 closure comes ready to store
expressed loose buffer tubes. An optional slack
storage basket is available for express stranded fiber
and ribbon fiber.
The A8 closure provides a compact solution for the
emerging Fiber-to-the-Home (FTTH) market. The
eight round ports base provides an excellent platform
for single or multi-fiber drops while maintaining the
proven reliability of FOSC splice closures.
The individual drop port approach simplifies the
provisioning, repair, and restoration of subscribers.
The ability to house pre-configured splitters as well as
up to eight adapters in a specially modified basket
makes this closure an ideal solution in today’s Passive
Optical Network (PON). |
As with all FOSC 400 closures, the slack storage and
splice capacity of the FOSC 400 A4 closure depends on
a number of factors including cable construction,
splice type, and slack fiber lengths. Refer to
the Closure Capabilities chart for more details.
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FOSC 400 B2 and FOSC 400 B4 Closure
These two closures are identical except for their
end cable port configurations. In addition to a large
oval port for the main distribution cable, the B2
closure has two large round ports for branch cable
splices and the B4 closure has four small round ports
for multiple drop applications.
The FOSC 400 cable sealing system provides a great deal
of flexibility. For example, four small cables can be
terminated in the two round ports of a B2 closure with
the use of branch-off clips. It is also possible to
terminate three cables in the oval port of either
closure. |
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