MIL-STD-2042-2 Fiber Optic Cable Topology Installation Standard Methods For Naval Ships Equipment Part 2 Of 7 PartsThis standard provides detailed methods for the installation of fiber optic cable topology equipment see 3.16, and optical fiber cable entry to fiber optic cable topology and other equipment.

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MIL-STD-2042-2B(SH)

NOTE: Small BOF tube bend diameters may not allow 12 and 18-fiber BOF bundles to be blown through the tube routing box. Maximize BOF tube bend diameters to the greatest extent practicable.

NOTE: BOF tube bend diameters less than 18 in will negatively impact the blowing distances achievable for 12 and 18-fiber BOF bundles.

NOTE: BOF tube loops with a diameter larger than the tube routing box may be utilized during fiber installation to improve blowing performance. During the blowing operation, the BOF tubes may be extended outside of the tube routing box. After the blowing operation, the large loop can be collapsed into multiple smaller loops for stowage within the tube routing box. An additional tube coupler may be placed in the middle

of the large loop to facilitate collapse of the large loop into multiple smaller loops.

Step 12 -Repeat steps 10 and 11 until all required tube interconnections have been accomplished.

Step 13 -Close and secure the tube routing box cover.

Tube coupler

Tube

DO NOT EXCEED

bend diameter

[13 cm (5 inches)]

Heat shrink label

7-Tube clip or equal

Jumper

tubes

DO NOT EXCEED

bend diameter

[13 cm (5 inches)]

7-Tube cable

Cable entrance via stuffing tube or MCP

Cut away view

FIGURE 2I1-2. Typical jumper tube paths.

2I1-5 METHOD 2I1