MIL-STD-2042-1B(SH)
FOICBs, TRBs, tube couplers, BOF trunk cables, BOF fibers, BOF bundles, tube furcation units and associated connectors and splices.
3.16 Fiber optic cable topology (FOCT). An integrated optical fiber distribution system that provides the optical interconnection between end user equipments. A conventional FOCT includes the conventional FOCP components and outlet boxes, conventional local cables and their associated connectors and splices.
A BOF FOCT includes the BOF FOCP components, BOF cable furcations, local conventional cables, local BOF cables, and associated connectors and splices.
3.17 Fiber optic interconnection box (FOICB). An enclosure for holding optical fiber cable (BOF and conventional), BOF tubes, tube furcation units, and optical fiber connectors, splices and adapters.
3.18 FOCP Growth fiber. An unallocated fiber intended for later use by fiber optic systems installed after initial ship construction.
3.19 Installing activity. An installing activity is any military or commercial organization involved with the installation of FOCTs aboard Naval ships.
3.20 Local cable.
3.20.1 Local conventional cable. A conventional optical fiber cable that runs between an end user equipment and an FOICB (or outlet box), or between an FOICB and an outlet box.
3.20.2 Local BOF cable. A BOF cable that runs between end user equipment and a TRB, or between a TRB and an outlet box.
3.21 Minimum bend diameter. The diameter at which a conventional optical fiber cable, OFCC (see 3.26), loose tube furcation unit, or BOF bundle (see 3.7) can be bent without degrading optical performance, or the diameter at which a BOF cable or BOF tube (see 3.10) can be bent without kinking a BOF tube. The short-term bend diameter applies during handling and installing; the long-term bend diameter applies to the completed installation.
3.22 Non-redundant channel (NRC). Any allocated and used active link that has no system required backup link.
3.23 Normal channel. An allocated and used active link between system equipment that has a designated active backup link.
3.24 Optical fiber cable. A cable that contains optical fibers.
3.24.1 BOF cable. A cable that contains one or more BOF tubes through which optical fibers or optical fiber bundles are blown.
3.24.2 Conventional optical fiber cable. An optical fiber cable in which the optical fiber is an integral part of the cable and is installed during the cable manufacturing process.
3.25 Optical fiber cable component (OFCC). A buffered fiber augmented with a concentric layer of strength members and an overall jacket.
3.26 Outlet box. A small termination box used to break out a local cable
from an FOICB or TRB to one or more end user equipments within a compartment or area.
3.27 Spare fiber. A fiber reserved for use as a maintenance spare in the event of damage to an allocated fiber within the FOCT.
3.27.1 FOCP spare fiber. An unallocated spare fiber for use by any system using the FOCP.
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