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Equipment Physical Design Standards ATT-TP-76200, Issue 19

AT&T Services, Inc. June 2014

17. APPENDIX B:

ATT-TP-76200 EQUIPMENT CHANGE TEST GUIDELINES

Purpose

The purpose of this appendix is to provide equipment suppliers a guide to help determine

what tests may not need to be performed on a product enhancement to verify conformance

to ATT-TP-76200 Ancillary requirements.

General

Some equipment enhancements are so minor that a complete retest of the equipment may

not be necessary. Typically, when a equipment supplier requests a re-test waiver to run tests

on equipment enhancements, data comparing the new equipment to the existing equipment

is submitted to the company representative for evaluation by AT&T Services. Depending on

the equipment under review, this data may include pictures, fire load data, descriptions of

electrical components, etc. Each AT&T Services equipment evaluation subject matter expert

(SME) then reviews this data and responds with an assessment of what tests are required.

This Appendix is a guideline only. It is the equipment suppliers’ responsibility to satisfactorily

document that the new equipment conforms to applicable requirements. This Appendix only

applies to equipment enhancements to equipment previously evaluated as in conformance

to applicable ATT-TP-76200 requirements and approved for use in AT&T.

Software upgrades/changes shall be evaluated if it involves:

• Additional or revised hardware

• Activation of previously unused hardware

• An increase in the amount of power supplied to the hardware

Retest Guidelines by ATT-TP-76200 Sections

A. Section 2, Electromagnetic Compatibility

Electromagnetic Interference – Emission & Immunity (ATT-TP-76200 Req. 2.4 – 2.5)

• Equipment suppliers should reassess or retest their equipment’s Emissions and

Immunity performance in accordance with GR-1089 CORE, Section 3.4.7. As part of

their reassessment, equipment supplier shall consider the effects of software changes

on the Emissions and Immunity performance of their equipment.

Lightning, AC Power Faults, Steady State Power Induction, Electrical Safety & DC Potential

Difference (ATT-TP-76200 Req. 2.6 – 2.9).

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