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Generic Requirements for Reliability Qualification Testing of Printed Wiring Assemblies Exposed to Airborne Hygroscopic Dust


Document Number GR-1274
Issue Number 02
Issue Date Nov 2009
Replaces TA-NWT-001274 Issue02
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    ABSTRACT: GR-1274 provides the Telcordia view of proposed minimum requirements for qualifying telecommunications printed wiring assemblies (PWAs)
    with regard to tolerance to hygroscopic dust found in indoor and outdoor
    environments.

    Compliance with these generic requirements is intended to demonstrate that circuit pack performance will not significantly
    degrade as a result of ordinary dust contamination during use.

    Issue 2:
    • Discusses the main parameters influencing dust deposition such as dust concentration, maximum electric field on printed circuit
      boards, and cooling techniques (fan or convection)

    • Applies to family designs of new technology, with the qualification test passed once for each pertinent design or new design
      family

    • First issue in 16 years contains new and updated specifications for today's telecommunications environment.

    Issue 2 of GR-1274, Generic Requirements for Reliability Qualification Testing of Printed Wiring Assemblies (PWAs) Exposed to
    Airborne Hygroscopic Dust
    , replaces Issue 1. GR-1274 replaced TA-NWT-001274.

    When using GR-1274, you may need to refer to GR-63. You may also want to refer to GR-78.


    Components of this product are:
    GR-1274-CORE

    Table of Contents:

    View Table of Contents


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