• VZ.TPR.9208 Thermal Management Requirements for Improved Energy Efficiency of Telecommunications Equipment, Issue 1, July 2009
• VZ.TPR.9602 Checklist for TMST ITL and Supplier Lab Audit, Issue 1, January 2010

Ask an Expert:

Q: I am curious what other laboratories are doing regarding ferrites. When performing radiated emissions testing to EN55022 (2006), do you allow the use of ferrites on the I/O cables outside the test space (i.e. under the floor of a raised OATS or a semi-anechoic chamber)?
-Dustin, Clovis, CA

A: Ferrites may be used as long as they do not become part of the EUT, i.e. they should only be used on the support equipment side. Also there is some ongoing debate that having ferrites on the support side may potentially change the characteristics of the interface.

In other words ferrites may be used on the support equipment side of the test setup as long as they don’t change the I/O line characteristics.

Q: I am familiar with HALT and HASS testing, but what is HASA?
-James, Detroit, MI

A: Here is a quick primer on HALT/HASS/HASA:

HALT – Stands for Highly Accelerated Life Testing

HASS – Stands for Highly Accelerated Stress Screening

HASA – Stands for Highly Accelerated Stress Audit. It is the same as HASS, but run on a sample basis only. It is generally performed when all HASS issues have been resolved.

Q: Since the U.S. Government Accountability Office found evidence of abuse in the Energy Star self-certification program, will all Energy Star-marked products be required to be tested at an independent 3rd party laboratory now?
-Alice, Wilmington, DE

A: EPA and DOE announced, effective this fall, that all manufacturers must submit test results from an approved, accredited lab for any product seeking the ENERGY STAR
label. Testing in an accredited lab is presently required for certain product categories, but the new process will extend the requirement to each of the more than 60 eligible product categories under the ENERGY STAR program.