MIL-DTL-52872D
failure is defined as any malfunction which causes or may cause one or more of
the following:
a.
Failure to commence operation, cessation of operation, or
degradation of performance below designated levels.
b.
Serious damage to the system.
c.
Serious personnel safety hazards.
4.4.2.7.1. Test procedure. Unless otherwise specified (see 6.2), twelve
complete UMSs (see 6.2), each consisting of one processor and one transceiver,
shall be randomly selected by a Government representative. The tests shall be
conducted under ambient laboratory conditions, without temperature, humidity,
or vibration cycling. Equipment shall be energized at the power input
specified in 3.5.2.1. Operation shall be continuous throughout the test. The
5-second, wideband ultrasonic noise signal specified in 2.1g of Appendix A
Test Method 2 shall be applied to the UMS not less than nine times during each
24-hour period, but not more often than once per hour. At the end of the
reliability test, the UMS shall be subjected to the tests specified in
4.4.2.4.1 and 4.4.2.4.2. The test shall commence only after successful
completion of functional tests of each unit. Parts or components of known
limited life, such as batteries, shall have a life stipulated prior to test.
Failure of these parts occurring after the end of the stipulated period are
non-relevant, but any dependent failures caused thereby are relevant.
Failures chargeable to workmanship deficiencies shall be counted as relevant.
Alarms not deliberately excited as part of the equipment test routine shall be
reported and cause of the alarm identified, if practicable. This accounting
shall be maintained separately from the failure accounting. Redundant
elements, such as indicator lamps, shall not be repaired nor counted as
failure until the UMS has failed to perform its intended function. Preventive
maintenance procedures specified for the equipment during normal operation
shall be performed during the reliability test. No additional preventive
maintenance is allowed during this test.
5.
PACKAGING
5.1. Packaging. For acquisition purposes, the packaging requirements
shall be as specified in the contract or order (see 6.2). When actual
packaging of material is to be performed by DOD personnel, these personnel
need to contact the responsible packaging activity to ascertain requisite
packaging requirements. Packaging requirements are maintained by the
Inventory Control Point's packaging activity within the Department of Defense
Agency, or within the Military Department's System Command. Packaging data
retrieval is available from the managing Military Department's or Defense
Agency's automated packaging files, CD-ROM products, or by contacting the
responsible packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that
may be helpful but is not mandatory.)
6.1. Intended use. The UMS is intended for use as an interior motion
detector and is a component of the Joint-Services Interior Intrusion Detection
System (J-SIIDS).
6.2. Acquisition requirements.
Acquisition documents should specify the
following:
a.
Title, number, and date of this specification.
b.
Issue of DoDISS to be cited in the solicitation, and if required,
the specific issue of individual documents referenced (see 2.2.1
and 2.3).
c.
Nomenclature and quantity of item(s) to be furnished (see 3.1.1).
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