MTBF, Markov, Availability Prediction Consultant
Can someone please share a referal of a consultant that has performed MTBF, Markov modeling, and Availability predictions on Datacom/Telecom equipment. I prefer referals from my peers and will not respond to direct marketing from consultants or labs. Thanks in advance, Nazeeh Shaheen Occam Networks
Re: NEBS Level 3 Plus
Re: You wrote: I caution everyone to obtain the specific checklists/requirements from each of your potential customers and comply with them. Im not sure what planet Verizon was on when they announced at the 2002 NEBS seminar that they were attempting to combine all RBOC requirements into the Verizon checklist. See SIT.NEBS.TE.NPI.2002.010 section 4.2. Although I am sure the intentions were good, a unilateral attempt to document what the other RBOCs requirements are is dangerous at best. I can list a few Qwest and SBC initiatives from the 2001 NEBS seminar which are missing from the Verizon Document. Qwest: Lower Acoustic Noise levels for RTs due to complaints filed by the PUC. Qwest: Exposure to High Temperature Testing for RTs at 125F (not 115F) in GR-487-CORE. SBC: Immunity to Voltage Transients on DC Input. etc. Notably missing from the Seminar this year were the 3 other RBOCs (Qwest, SBC, BellSouth) ATT was the only other Service Provider present. So, in summary use the checklist for Verizon only. They have done a great job defining what is important to them. But I couldn't agree more that the Verizon checklist is not the source for other Service Providers. Regards Nazeeh Shaheen Manager, Approvals Occam Networks
Re: GR-63-CORE Issue 2
If someone has purchased a copy of this, would you please look in the forward matter of the specification and share with us who participated in and funded the new issue. This should give us an indication of whom is on board as of the release of the document. Regards Occam Networks Nazeeh Shaheen, Manager, Approvals www.occamnetworks.com One Network. No Limits. Scott Baer wrote: Group, Telcordia has announced that Issue 2 of GR-63-CORE has been released. Here's the website for more background: http://www.telcordia.com/resources/genericreq/digest/downloads/june2002digest.pdf The most significant change consists of revised gaseous and hygroscopic dust test procedures. Page 53 of Telcordia's newsletter states, New products or products previously not tested must be tested to these new airborne contaminants procedures beginning six months after the GR-63 reissue date. Since the issue date is April 2002, it looks like we'll be cutting over to the new procedures in October, per Telcordia's information. Now, here's my question for the group: Have the RBOCs (Verizon, SBC, BellSouth, and Qwest) accepted GR-63-CORE, Issue 2? That would seem to be first question to explore before changing the test plans. Regards, Scott Baer -- Scott J. Baer, P.E. Product Compliance Engineer AG Communication Systems A Subsidiary of Lucent Technologies Email ba...@agcs.com Phone 623-581-4139 FAX 623-581-4574
Rack Mechanical Dimensions
I am searching for the mechanical dimensions of both 19 and 23 telco racks. Can someone please confirm that ANSI/EIA/310-D-92 is the proper spec. Thanks, -- Occam Networks Nazeeh Shaheen, Approvals Manager 4183 State Street Santa Barbara, CA 93110 (805) 692-6237 Phone (805) 692-9546 Fax
