MIL-STD-2042-6B(SH)
NOTE: If the FOCT link under test is terminated with single fiber connectors on the input side, disconnect the input MQJ from the FOCT link under test. Repeat steps 9 through 15 for the other fibers in the FOCT link under test.
NOTE: If the FOCT link under test is terminated with multi-fiber connectors on the input side, disconnect the FOCT link under test and the ORLM interface cable from the input MQJ. Repeat steps 5 through 15 for the other fibers in the FOCT link under test.
Step 16 -Proceed to 3.3.
3.3 Cable topology end-to-end return loss.
Step 1 - Verify the measured return loss is less than the value identified in installation drawings.
NOTE: The FOCT link is considered acceptable if the measured return loss is greater than or equal to the specified FOCT link return loss. If the measured return loss is acceptable, proceed to step 3 below. If the measured return loss is less than the specified FOCT link return loss, proceed to step 2 below.
Step 2 - Disconnect and clean all the connections and retest. If the measured FOCT link return loss is still unacceptable, re-polish the FOCT link terminations or replace the defective components and retest.
Step 3 - If the ends of the FOCT link are not going to be immediately connected to their mating connectors, install protective caps over the FOCT link connectors.
6L1-6
METHOD 6L1
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