MIL-DTL-83522E
NOTES:
1/ An "X" indicates that this optical measurement applies for the inspection. See appropriate test paragraph for details.
2/ Group V tests are for parts intended for space flight. Group V tests will be performed by NASA.
3/ Perform the change in optical transmittance measurement both during and after the test (with the baseline measurement performed
before the test).
4/ Perform the change in optical transmittance measurements after the test (with the baseline measurement performed before the test).
5/ Perform temperature in lieu of temperature cycling when specified. The soak duration at the low and high temperature plateaus are
longer and the temperature limits vary depending if performing at temperature range 1 or 2 for the temperature test. The temperature
and temperature cycling tests are performed at both low and high temperature limits for one cycle and 10 cycles, respectively.
6/ Either an additional four mated pair can be fabricated for this test of the Group E samples may be used after completion of Group 3
tests.
7/ Polymeric parts from 1 mated pair.
8/ Two mated pair from Group 2.
9/ Initial qualification and re-qualification are performed on connectors with both single mode (SM) and multimode (MM) and when
specified, four MM mated pair listed in table is for one fiber type.
10/ Group 1 mated pair are to be used for Groups 2, 3, and 4.
11/ When performing initial qualification or re-qualification with both single mode (SM) and multimode (MM) and when specified, four
MM mated pairs may undergo Group 1 and shock testing only. Single mode mated pair shall undergo specified the cited
inspections/tests. This multimode reduction in tests required is applicable if the only differences, between SM and MM, are ferrule
diameter dimension, ferrule hole diameter dimension, boot color (optional) and markings.
4.7.2 Visual and mechanical inspection. Connectors, plugs adapters, and receptacles shall be examined to verify that the design,
construction, physical dimensions, assembly instructions, marking and workmanship are in accordance with the applicable
4.7.2.1 Dimensional inspection. Mating dimensions shall be examined for conformance to the requirements in 3.4.1 through
3.4.5.2 by mating the connector with its applicable mating gauges or other suitable means acceptable to the Government.
4.7.2.2 Identification markings. Identification marking on connectors (including adapters) shall be visually examined and
measured for conformance with the requirements of 3.6. Inspection for legible markings shall be performed from a distance of at least
6 inches (15 cm) with normal room lighting and without the aid of magnification. Markings shall be legible to the extent that none are
missing, in whole or in part, faded, blurred, smeared, or shifted (dislodged) and shall be readily readable. Markings shall be permanent
to the extent of withstanding cleaning procedures and of withstanding environmental and mechanical performance tests conducted.
4.7.2.3 Workmanship. The connectors (including adapters) shall be visually examined to verify that they meet the
workmanship requirements of 3.7.
4.7.2.4 Polarization. For the connectors (including adapters) with polarization, during the mating of the connector shells or
connector-to-adapter shells a visual examination shall be performed to verify that polarization is achieved within the requirements of
4.7.3 Weight (see 3.4.2). Connector plugs, adapters and receptacles and receptacles shall be weighed using scales with an
accuracy of ±5 percent to verify conformance to the requirements specified in 3.4.2, connectors shall not be assembled to cables for
this test.
4.7.4 Size (see 3.4.3). Connector plugs, adapters and receptacles shall be measured, using instruments with accuracies
appropriate to the tolerances defined in the specification sheet for the unit, to verify compliance to 3.4.3.
4.7.5 Optical test methods. The optical measurements in 4.7.6 through 4.7.10 shall be performed per the applicable TIA-455
series standards with the exception for adhering strictly to the setup and test procedure specified in the applicable 2100 series in MIL-
STD-1678-2. Multiple fibers may not be concatenated during the measurement of change in optical transmittance or optical
discontinuity. The center wavelength of test shall be 1300 ± -20nm. Light launch conditions shall be as specified in MIL-STD-1678-2.
Cable length for test samples shall conform to MIL-STD-1678-2. Test sample fabrication of the optical interfaces shall conform as
specified (see 3.1).
4.7.5.1 Non keyed connectors. For subsequent measurements of change in optical transmittance, it is recommended the
sample (connector plugs and adapter) be mated in the same azimuthal orientation as established for the initial insertion loss
measurement.
4.7.6 Insertion loss (see 3.5.1.1). The initial insertion loss of multimode connectors shall be measures in accordance with method
A of TIA-455-34 using both 70/70 and overfill launch conditions. For subsequent insertion loss tests (insertion loss verifications), 70/70
launch conditions or equivalent shall be used. The insertion loss of single mode connectors shall be measured in accordance with
4.7.7 Change in optical transmittance (see 3.5.1.2). This test shall evaluation the change of optical power (transmittance) level of
the fibers due to exposure to each specified inspection (mechanical or environmental test) either after the test or during and after the
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