MIL-STD-2042-1B(SH)
3. DEFINITIONS
3.1 General fiber optics terms. Definitions for general fiber optics terms used in this standard practice are in accordance with EIA/TIA-440. Definitions and acronyms for other terms as they are used in this standard practice are given in the following paragraphs.
3.2 Acronyms. The following acronyms are used in this standard practice: BOF Blown Optical Fiber
FOCP Fiber Optic Cable Plant
FOCT Fiber Optic Cable Topology
FOICB Fiber Optic Interconnection Box
TRB Tube Routing Box
3.3 Allocated and not used fiber. A fiber that is designated for use for a particular system, but is not being used to transmit information. Allocated and not used fibers include fibers allocated as system spare fibers, system growth fibers, and system redundant fibers.
3.4 Allocated and used fiber. A fiber that is designated and required for use for a particular system, and is being used to transmit information. Allocated and used fibers include fibers used for normal channels, fibers for alternate channels, and fibers for non-redundant channels.
3.5 Alternate channel. The allocated and used active backup link for a normal channel.
3.6 Authorized approval. Written approval from the cognizant Government activity.
3.7 BOF bundle. A group of optical fibers within a special jacket that allows the entire bundle to be blown into a BOF tube.
3.8 BOF fiber. An optical fiber with a special coating that allows the fiber to be blown into a BOF tube.
3.9 BOF tube. A tube within a BOF cable through which optical fibers or optical fiber bundles are blown.
3.10 BOF tube coupler. A device used to join two BOF tubes together.
3.11 BOF tube routing box (TRB). An enclosure for holding BOF cables (trunk and local), BOF tubes (trunk and local), and tube couplers to interconnect BOF tubes.
3.12 Cable repair. Restoration/repair of only the outermost cable jacket.
3.13 Cable splicing.
3.13.1 Conventional cable splicing. Repair of a damaged conventional optical fiber cable by reconnecting severed fibers and providing an environmental enclosure at the spliced region.
3.13.2 BOF cable splicing. The joining of two BOF cable ends by connecting the tube ends together using tube couplers and providing an environmental enclosure at the spliced region.
3.14 End user equipment. Any cabinet, case, panel, or device that contains components that are either the origin or destination of an optical signal.
3.15 Fiber optic cable plant (FOCP). A subset of the FOCT that excludes local cables and their associated components. A conventional FOCP includes FOICBs, trunk cables and their associated connectors and splices. A BOF FOCP consists of
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