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)

Step 8 - Reinstall the wedgepack (if removed) and install the insert blocks on the BOF cables so that the outer jacket protrudes 13 mm (0.5 inch) to

25 mm (1 inch) inside the equipment.  Install the cable insert blocks so that the gap between the insert block halves is parallel to the wedge pack.  Install the insert blocks into the MCP frame so that the insert blocks are flush with the outside edge of the MCP frame.  Fill all positions in the frame with insert blocks [either cable insert blocks or blanking (solid) insert blocks (see figure 2H1-1)]. (NOTE: Incoming BOF cables may be installed on one end of the enclosure and outgoing cables on the opposite end for large enclosures.  Where only one penetrator is used, incoming cables may be installed on one side of the wedgepack and outgoing cables on the opposite side.)

Interconnection box

Wedgepack

Blanking insert blocks

Cable insert blocks

7-Tube

cables                                                Fiber optic

cables (4/8)

FIGURE 2H1-1.  Interconnection box integral MCP (typical).

NOTE:        BOF cables generally should be installed near the ends of the MCP so that the BOF tubes can be easily routed to the sides of the equipment.

Step 9 - Tighten the nut on the wedgepack to compress the insert blocks in the frame using a wrench.  Tighten the wedgepack nut until the outside wedge pack metal plate is almost flush with the bottom of the MCP

frame and the insert blocks.  (NOTE: The wedge pack is fully tightened when the length of the pack is the same as the depth of the MCP

frame.)  Continue to tighten the wedgepack nut until a torque between

5.7 and 16.9 N-m (50 and 150 in-lbs) is reached.  After the blocks

have been compressed for approximately 24 hours, retighten the nut to

ensure that the seal is maintained.

Step 10 -If the BOF tubes will not be immediately formed and shaped within the equipment, close the equipment cover to keep dirt and moisture out of the BOF tubes.

2H1-3                        METHOD 2H1