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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