MIL-STD-2042-1B(SH)
4.1.7 Cable connections. Cable connections to equipment external to the fiber optic cable topology, such as end user equipment (see 3.14), shall be made with multiple terminus heavy duty connectors in accordance with MIL-C-28876, single terminus light duty connectors in accordance with MIL-C-83522, or Navy approved commercial light duty connectors as specified in the system drawings. Connectors shall be assembled as specified in Part 5 of this standard practice. Light duty connectors used for external equipment connections shall be housed within that equipment. Light duty connectors used for cable interconnections internal to the fiber optic cable topology shall be housed within interconnection boxes, as specified in Part 2 of this standard practice.
4.1.7.1 Termination of fibers. There are four categories of fibers:
a. Allocated and used (see 3.4).
b. Allocated and not used (see 3.3). c. Unallocated (see 3.34).
d. Unused (see 3.35).
The quantity of the first three categories shall be as specified in the ship specification and on the system drawings.
4.1.7.1.1 Allocated and used fibers. The allocated and used trunk and local cable fibers shall be terminated in accordance with the fiber optic cable plant and system drawings.
4.1.7.1.2 Allocated and not used fibers. The allocated and not used shall be terminated in accordance with the system or fiber optic cable plant drawings.
4.1.7.1.3 Unallocated fibers. Trunk and local cables that penetrate decks and bulkheads shall contain spare (unallocated) fibers. Spare fibers shall be terminated in accordance with the system or fiber optic cable plant drawings. Growth fibers shall not be terminated unless the cable termination is a heavy duty multi-terminus connector or the termination is specified in the fiber optic cable plant or system drawings.
4.1.7.1.4 Unused fibers. The unused fibers shall not be terminated unless otherwise specified in the fiber optic cable plant or system drawings.
4.1.8 Cable testing. Cables shall undergo testing before, during, and after installation in accordance with Part 6 of this standard practice.
4.1.9 Cable and fiber marking. All cables shall be marked in accordance with the ship specification and system drawings and as specified herein. Cable identification tags external to the equipment shall be located as specified in Part 4 of this standard practice. Cable tags shall be of a size suitable to accommodate the required marking but shall have a minimum width of 13 mm (1/2 in). Tags and strips for marking cables shall be of soft aluminum tape having a natural finish in accordance with MIL-A-2877. Capital letters shall be used on cable tags; height of all letters shall be not less than 5 mm (3/16 in), and letters and numbers shall be embossed to at least 0.4 mm (1/64 in) above the surface.
4.1.9.1 Fiber identification markers. Permanent cable markers marked with the fiber identification specified in the ship specification and system drawings shall be used to identify OFCCs or single fiber cables at their termination point within the interconnection box. The identification markers shall always be installed with the left hand marking group next to the termination point. The marker shall be
positioned so that it can be easily read without disturbing other components within
the equipment. The marker base color shall be white.
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