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.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - 38 - 39 - 40 - 41 - 42 - 43 - 44 - 45 - 46 - 47 - 48 - 49 - 50 - 51 - 52 - 53 - 54 - 55 - 56 - 57 - 58 - 59 - 60 - 61 - 62 - 63 - 64 - 65 - 66 - 67 - 68 - 69 - 70

MIL-STD-2042-2B(SH)

TABLE 2H1-II.  MCP data and insert block sizes for BOF cables.

Step 2 - Measure the distance required to route the BOF tubes from the innermost portion of the MCP to the most distant corner of the interconnection box (or to the furcation or end sealing region in the end user equipment).  Add approximately 130 mm (5 in) to the distance and mark the BOF cable outer jacket.

Step 3 - Remove the BOF cable outer jacket up to the mark using the cable jacket stripper. Cut off the cable kevlar strength members and waterblocking materials, if present, using the kevlar shears.  If the required length of any of the BOF tubes is shorter than the exposed tube length, trim the tubes to the appropriate length.

NOTE:        Make sure that the individual BOF tubes are not punctured, crushed, or kinked while trimming back the cable elements and the BOF tubes that will not be routed into the equipment.

Step 4 - End seal the BOF tubes that will not be routed into the equipment using Method 2J1-1 of this standard practice.

NOTE:        This step may be performed after BOF cable insertion into the MCP if there is a problem inserting the BOF cable through the cable insert blocks with the BOF tubes end sealed.

Step 5 - Clean the BOF cable jacket and the BOF tubes using a wipe dampened with alcohol. Blow them dry with air.

Step 6 - CAUTION: Do not exceed the following BOF cable and BOF tube minimum bend diameters: BOF tube - 127 mm (5 in), 7-tube cable - 46 cm (18 in), and 19-tube cable - 1.27 m (50 in).

Feed the BOF cables into the interconnection box or the other equipment through the cable penetration opening.

Step 7 - Liberally apply tallow to the outside portion of the insert blocks, the inner portion of the MCP frame and to the sides of the wedgepack. Make sure that tallow is placed in the corners of the MCP frame. (NOTE: The wedgepack may be removed and disassembled to apply the tallow.)

2H1-2                        METHOD 2H1