Also for clarification, NEBS Level 3 Plus means all of GR-1089-CORE and all
of GR-63-CORE. Also known as NEBS Level 3 Plus other criteria Both terms
are borne from SR -3580, although not contained within in it.
The confusion arises from the fact that not all the criteria in GR-1089 and
GR-63 appear in NEBS Levels 1, 2, and 3 levels of SR-3580. There are several
that fall into another category that are basically other miscellaneous
criteria. Since each RBOC typically requires evaluations to all the
criteria in GR-1089-CORE and GR-63-CORE, not just those in Level 1, 2, and 3,
the term NEBS Level 3 Plus was used by people around industry to mean NEBS
Level 3 plus other miscellaneous criteria in SR-3580 that are not contained in
levels 1, 2, and 3 or all of GR-1089 and GR-63
But as Dave pointed out be careful. The deviations in test procedures or test
labs required by some RBOC's can have a significant influence on whether you
comply with a given criteria. So you may be NEBS level 3 Plus with one RBOC
and not be NEBS Level 3 Plus with another depending upon how the
test was performed or who performed it.
Also be aware that some RBOC's and CLEC's accept testing to some of the new
ANSI standards that are being developed. For instance the earthquake test was
revised in ANSI T1.329-2002 and the Fire test was revised in ANSI T1.319-2002.
The materials requirements for fire in GR-63 are from ANSI T1.307
which is up for ballot currently and should be accepted by November. All three
of these are base documents for GR-63 earthquake and fire tests. These were
not used when GR-63 was revised last April. Since three RBOC's and a couple
CLEC's participated in the development and approved these ANSI
standards, they tend to let manufacturers use these in place of the outdated
GR-63 tests. But make sure you discuss with your customer first as Verizon for
instance does not accept the new T1.329 fire standard.
There seems to be significant interest to have Telcordia revise GR-63 to
address these and other issues, and anyone interested should contact Richard
Kluge at Telcordia to express interest that a project be opened to update GR-63
with the newest ANSI documents and fix other issues that labs and
manufacturers know exist.
Good Luck,
Jim
Jim Wiese
NEBS Project Manager/Senior Compliance Engineer
ADTRAN, INC.
901 Explorer Blvd.
P.O. Box 14
Huntsville, AL 35814-4000
256-963-8431
256-963-8250 fax
jim.wi...@adtran.com
-Original Message-
From: Dave Lorusso [mailto:d...@lorusso.com]
Sent: Monday, October 14, 2002 4:19 PM
To: Georgerian, Richard; IEEE emc-pstc
Subject: RE: NEBS Level 3 Plus
Richard,
Verizon does not recognize NEBS Level 3 as called out in Telcordia/Bellcore
SR-3580. They had input into this document, but later regretted it. What
Verizon does recognize is their own checklist at www.verizonnebs.com
http://www.verizonnebs.com/ . The confusion comes from the fact that the
SR-3580 requirements are scattered throughout Verizon's checklist.
At the NEBS 2002 Conference last week, Verizon introduced their latest revision
of their checklist. They are trying to incorporate all of the other RBOC's and
ATT requirements into this document. I caution everyone to obtain the specific
checklists/requirements from each or your potential
customers and comply with them.
NEBS Plus is mentioned in an article I wrote for Evaluation Engineering What
Every Startup Needs to Know About NEBS:
http://www.evaluationengineering.com/archive/articles/0502emc.htm
http://www.evaluationengineering.com/archive/articles/0502emc.htm
The intent was to highlight that just meeting NEBS Level 3 was not enough to
get equipment into your customer's central offices.
In summary, there is no NEBS Level 3 Plus requirement, there are only
customer requirements.
Best regards,
Dave Lorusso
Lorusso Technologies, LLC
Your NEBS, Product Safety and EMC Solution
http://www.lorusso.com/ www.lorusso.com
www.nebs-faq.com http://www.nebs-faq.com/
512.695.5871 (phone)
512.233.2939 (fax)
-Original Message-
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Georgerian, Richard
Sent: Monday, October 14, 2002 11:10 AM
To: IEEE emc-pstc
Subject: NEBS Level 3 Plus
Greetings All,
Does anyone know the specifics regarding Verizons NEBS Level 3 Plus
requirement. I have checked the Verizon web pages, the archives of the
emc-pstc, and the word search on the internet, with no luck. Otherwise, I
believe this is just another name for the checklist document that Verizon uses
and
can be downloaded from their website.
Thanks in-advance.
Richard Georgerian
Compliance Engineer
Carrier Access Corporation
5395 Pearl Parkway
Boulder, CO 80301
USA
Tele: 303-218-5748 Fax: 303-218-5503
mailto:rgeorger...@carrieraccess.com mailto:rgeorger...@carrieraccess.com
