MIL-DTL-83526C
6.4 Application information.
6.4.1 Fiber-optic test plugs. Fiber-optic test plugs are plug assemblies that are used to simulate short
or long lengths of fiber. This can be accomplished in a number of different ways, i.e., fiber core match or
mismatch, fiber numerical aperture match or mismatch, etc. The test plug is simply a fiber-optic
connector plug, which uses a short length of the required fiber that is "looped back" in the backshell.
These test plugs find applications in many system functions. The following is a partial list:
a. A test plug containing a fiber with characteristics like that of the deployment fiber can simulate a
short length of fiber (low optical loss).
b. A test plug containing a fiber with characteristics unlike that of the deployment fiber can simulate
a long length of fiber (high optical loss).
c. Using a combination of the above test plugs the user can evaluate the dynamic range of this
system.
d. Can be used in field situations where an Optical Time Domain Reflectometer (OTDR) is not
available to determine fault locations.
e. Allows system checkout to be performed without the actual deployment of cable assemblies.
6.5 Hydraulic fluid. MIL-PRF-5606 has been utilized successfully in the past.
6.6 Maintenance aging. MIL-HDBK-81969/46, MIL-HDBK-81969/47 and MIL-HDBK-81969/48 have
provided satisfactory results for previous acquisitions.
6.7 Verification program. Evidence of compliance to a verification program established and maintained
in accordance with MIL-STD-790 or comparable standard will be verified by the qualifying activity of this
specification as a prerequisite for qualification and continued qualification. The verification system
procedures, planning and all other documentation and data that comprise the verification system must be
available to the Government for review. The Government may perform any necessary inspections,
verifications and evaluations to ascertain conformance to the requirements and adequacy of the
implementing procedures.
6.8 Test equipment and inspection facilities. Provision for test and measuring equipment and
inspection facilities of sufficient accuracy, quality, and quantity to permit performance of the required
inspections must be the responsibility of the contractor. The establishment and maintenance of a
calibration system to control the accuracy of the measuring and test equipment must be in accordance
with NCSL-Z540-1 or comparable standard.
6.9 Isopropyl alcohol. Federal Specification TT-I-735 has provided satisfactory results when utilized in
the past.
6.10 Fungus resistance. It was found that utilization of requirement 4 of MIL-HDBK-454 yielded
satisfactory results in the past.
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