Hi, I fall in with this group as well. My understanding is that Verizon does not embrace the current version of GR63 as written and still requires additional line items from TR-NWT-000063, Issue 5, (GR-63's Granddad). Consequently, needle flame or other flame spread/flammability testing will not relinquish the database requirement.
As a matter of work planning, it pays to work systematically. Depending on the size of your product completion of the database can take many person-months of effort. Start with the all of the large polymeric parts: facades, PCB's, connector assemblies, foam gaskets, chassis components. Then move on to the VLSI encapsulated parts and work your way down. It can take weeks to get numbers from a company and it can be very frustrating. It is much less stressful if you are doing the work outside a deadline. Maybe one day we can add a component database to a NEBS web site with all of the flammability data listed by manufacturer and get manufacturers to update/add the data as a normal part of version release! Ah, the perfect information world... Have a Great Day! Dave Spencer Oresis Communications -----Original Message----- From: Dave Lorusso [mailto:dave.loru...@genband.com] Sent: Friday, February 15, 2002 12:05 PM To: 'nebs@world.std.com' Cc: 'jloise...@integralaccess.com' Subject: RE: Fire Resistance Database Analysis John is right. This has been our experience too. We created a spreadsheet from the BOM, contacting each vendor and entering the data. Here's an example of our database: Part Number Description Manufacturer P/N Flammability Classification Polymer Type Total Mass Polymer (g) Polymer, % Oxygen Index 5xx-000xx-01 RES,100K,TKF,1/16W,1%,SM,0603 DALE CRCW06031003F UL 94 V-0 Thermal Set Epoxy 0.000036 1.57 (Total: 0.0023g) 22-25 5xx-000xx-01 IC,3966,LDO REG,1.8V,3A,TO263-5 NTL LP3966ES-1.8 UL 94 V-0 Epoxy Cresol Novolac 0.88 60.7 (Total: 0.1.45g) 28 5xx-000xx-01 IC,3966,LDO REG,2.5V,3A,TO263-5 NTL LP3966ES-2.5 UL 94 V-0 Epoxy Cresol Novolac 0.88 60.7 (Total: 0.1.45g) 28 5xx-000xx-01 CON,2MM,HM-A,22X5-ROW,RCPT,RA,P-FIT AMP 100147-1 UL 94V-0 Housing: Thermoplastic polyester GF PBT or GF PBT/PC Blend color grey 7.181 29 Make sure you get all the alternate vendors too. It took us a few months to generate our list and it is constantly maintained. A small price to pay for a happy customer. Good luck, Dave Lorusso Director of Product Integrity General Bandwidth, Inc. 12303 Technology Blvd. Austin, TX 78727 www.genband.com 512-681-5480 (phone) 512-681-5481 (fax) dave.loru...@genband.com -----Original Message----- From: John Loiselle [mailto:jloise...@integralaccess.com] Sent: Friday, February 15, 2002 1:34 PM To: nebs@world.std.com Subject: RE: Fire Resistance Database Analysis Dave, You can get this information by looking through your BOM, finding the component vendor, checking their website, emailing their contact, waiting a few days, and calling them on the phone if they do not respond. Your email message needs to be nothing more than what you stated below (from personal experience). (are you the Dave Wilson once upon a time from Wang Labs?) -John -----Original Message----- From: nebs-appro...@world.std.com [mailto:nebs-appro...@world.std.com]On Behalf Of Dave Wilson Sent: Friday, February 15, 2002 1:47 PM To: 'nebs@world.std.com' Subject: RE: Fire Resistance Database Analysis Thanks John - I figured it wouldn't be an easy ride! Can you point me in the right direction as regards discovering the polymeric weight and oxygen index of particular components? Thanks again, Dave -----Original Message----- From: Jon Curtis [mailto:j...@curtis-straus.com] Sent: Friday, February 15, 2002 10:36 AM To: nebs@world.std.com Subject: Re: Fire Resistance Database Analysis Hi Dave, I asked Verizon at the Las Vegas conference if they wanted a report from an independent source to support GR-78 compliance and they indicated at that time that they did not feel that was necessary. At Curtis-Straus, we routinely put together an assembly level flame database for every complete GR-63 report we produce. The Verizon checklist says that you need to provide it if they ask for it. Dave Wilson wrote: >Hi, > >I'm looking at the Verizon NEBS requirements, which along with GR-63 and >GR-1089 call out the design guidelines in GR-78. Does GR-78 compliance have >to be assessed independently for Verizon compliance, or is manufacturer's >declaration on the NEBS checklist sufficient (section 2.8.1 would suggest >otherwise, but design guidelines are not as readily measurable as say, >environmental or EMC criteria)? > >Also, has anyone out there put together a fire resistance database in >accordance with GR-63 4.3.2.1 before? Was it necessary for Verizon >compliance? Or is shelf/frame-level flame testing and needle-flame component >testing sufficient, provided the split-frame infra-red video requirements >for Verizon are met? > >Thanks in advance, > >Dave Wilson >Manager, Quality & Compliance >Alidian Networks, Inc. > >
