MIL-STD-2042-2B(SH)
For terminated cable assemblies, measure the distance required to route OFCCs from innermost portion of the MCP to the furthermost connection point in the equipment, add approximately 80 mm (3 in) and mark the cable outer jacket. In an interconnection box the distance measured shall be great enough that the OFCC can be routed one-half of the way around the box and then to the termination point.
Step 3 - Remove the outer jacket up to the mark using the cable stripper.
CAUTION: Do not cut or nick OFCCs.
Cut off the cable kevlar strength members and exposed central member, if present, using kevlar shears.
Step 4 - Remove the waterblocking material and clean the OFCCs using a wipe dampened with alcohol. Blow dry with air.
TABLE 2B1-II. MCP data and insert block sizes for optical fiber cables.
|
Cable type |
4-fiber |
8-Fiber |
18-fiber |
36-Fiber |
Cable OD mm (in) nominal |
8.1 (0.32) |
11.1 (0.44) |
14.3 (0.56) |
20.8 (0.82) |
Primary insert block part number M24705/1-BN |
1508 |
2011 |
2014 |
3021 |
Alternate insert block part number M24705/1-BN |
2008 |
N/A |
N/A |
N/A |
Blanking insert block part number M24705/1-BN |
15 |
20 |
20 |
30 |
Alternate blanking insert block part number M24705/1-BN |
20 |
N/A |
N/A |
N/A |
Step 5 - CAUTION: Do not exceed the cable minimum bend diameter of eight times cable OD for short term bends and sixteen times the cable OD for long term bends.
Feed the cables into the interconnection box or the other equipment through the cable penetration opening.
Step 6 - 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.)
Step 7 - Reinstall the wedgepack (if removed) and install the insert blocks on the 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
2B1-2 METHOD 2B1
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