MIL-DTL-83522E
4.8.2 Temperature (see 3.5.3.2). Connector mated pair shall be subjected to the specified operating temperature extremes as
indicated. The change in optical transmittance (see 4.7.7) shall be measured at the end of each temperature plateau and at the end of
the test. At the completion of the test, the connector shall be visually examined in accordance with 4.7.2.
Step
Duration
1. Maintain +25°C ± 2°C
1 hour minimum
2. Optical transmittance measurement
3. Ramp to operating temperature
2 hours maximum
4. Maintain high operating temperature
24 hours minimum
5. Optical transmittance measurement
6. Ramp to +25°C ± 2°C
2 hours maximum
7. Maintain +25°C ± 2°C
1 hr. minimum
8. Optical transmittance measurement
9. Ramp to low operating temperature
2 hours maximum
10. Maintain low operating temperature
24 hours minimum
11. Optical transmittance measurement
12. Ramp to +25°C ± 2°C
2 hours maximum
13. Maintain +25°C ± 2°C
1 hr. minimum
14. Optical transmittance measurement
4.8.3 Thermal shock (see 3.5.3.3). Connector mated pairs shall be tested in accordance with test schedule C of TIA-EIA-455-71
for five cycles. When testing to temperature range 1, the temperature extremes shall be the specified non-operational temperature
extremes for temperature range 1 (see 3.5.3.2). When testing to temperature range 3, the temperature extremes shall be the specified
operational temperature extremes for temperature range 2 (see 3.5.3.2). Change in optical transmittance measurements shall be
measured after the test for temperature range 1 and measured during (towards the end of each temperature plateau) and after the test
for temperature range 2. The connectors shall be visually examined in accordance with 4.2 after the test. The connector mated pair
shall be examined for degradations of any sort after testing in accordance with 3.5.3.3.
4.8.4 Temperature life. Connector mated pairs shall be tested in accordance with TIA/EIA-455-4 and as specified herein. The
specimens shall be exposed to dry air at a temperature and duration specified in table VII. The change in optical transmittance shall be
monitored after the test in accordance with 4.7.7. The connectors shall be visually examined in accordance with 4.7.2 after the test.
TABLE VII. Temperature life test conditions.
Temperature range
Temperature (+5/-0°C)
Duration (hours)
1
110
240
2
165
1,000
4.8.5 Vibration. Connector mated pairs shall be tested in accordance with TIA/EIA-455-11 using the setup and procedure
specified in measurement 3201 of MIL-STD-1678-3. Optical discontinuities shall be measured during each test (see 4.7.9). The
change in optical transmittance shall be measured ager each test (see 4.7.7). The connector shall be visually examined in accordance
with 4.7.2 after the test. Lockwires (safety wire) shall not be utilized during this test. For connectors with a threaded coupling nut (ring)
but no ratchet mechanism, retightening of the connector after each axis and test condition is permitted. For a mating connector
containing a coupling ring ratchet mechanism, do not tighten the coupling ring during testing. Cable to cable connectors may be held to
the jig of figure 2 by a suitable clamp on one half of the connector assembly.
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