Duncan, You are on the right track by doing all the board-level tests up front. Your customer will have to integrate the blade into their ATCA application and get the entire system NEBS certified and approved by the end-customer (Verizon, SBC, AT&T, etc.). I would also recommend that you don't overlook testing for the EN 300 386 requirements that will be required for deployment into European COs.
Here is a list of tests that I would recommend you perform to help ensure your card won't be the weak link in any system ATCA application: - Applicable surge testing which is dependant on the type of interface, i.e., intra-building or outside plant. (See appendix B in GR-1089 to determine your type of equipment.) - ESD according to GR-1089 (inside an ATCA chassis) and GR-78 (bare board) - Radiated emissions inside a chassis - don't forget the extended GR-1089 limits - Conducted emissions on all cables. DC power conducted emissions may be of interest as well. - EFT on all cables. - Conducted immunity on all cables - Radiated immunity with the board installed in an ATCA chassis - Short circuit tests! - Any applicable safety testing (dielectric withstand, thermals) - Drop testing - bare board - Thermal operation - inside an ATCA chassis with the neighbouring boards loaded to the maximum the ATCA allows (300W?). You may want to also do the following if you have any special components or concerns: - Airborne contaminants - inside an ATCA chassis - Fire spread - inside an ATCA chassis - DC power transients from AT&T and SBC The best thing is to read through all of the requirements. The above lists are >from the top of my head and are probably not all-inclusive. Your specific card may have features that would necessitate other testing (AC power fault?, etc.). A Verizon certified test lab will be a big help in deciding on the applicable tests. You can get the list from: http://www.verizonnebs.com/tcppage.html. Good luck, Marko Marko Radojicic NOKIA Enterprise Solutions 313 Fairchild Drive, Mountain View, California 94043 Mobile (preferred) +1 650.796.1131 Desk +1 650.625.2624 email: [email protected] From: [email protected] [mailto:[email protected]]On Behalf Of ext JIM WIESE Sent: Friday, November 19, 2004 6:27 AM To: Duncan Hobbs; [email protected] Subject: RE: NEBS Compliance of Single ATCA card Hello Duncan, Although I don't have an answer, you might also want to post this at the NEBS WEB Group. It is located at: http://groups.yahoo.com/group/nebsweb Somebody there may be able to assist you as they all deal with NEBS issues. This was formally the NEBS Forum on IEEE but was migrated to a Yahoo group in September. Good Luck, Jim Jim Wiese NEBS Project Manager/Senior Compliance Engineer ADTRAN, INC. 901 Explorer Blvd. P.O. Box 140000 Huntsville, AL 35814-4000 256-963-8431 256-963-8250 fax [email protected] From: Duncan Hobbs [mailto:[email protected]] Sent: Friday, November 19, 2004 3:46 AM To: [email protected] Subject: NEBS Compliance of Single ATCA card Group, One division of our company is looking to design an ATCA card that is designed to be installed in telco applications, although not directly connected to a telco network. The card is to be sold as a single card for systems integrators and therefore requires a chassis or frame to be able to work. The card is intended for use in ATCA applications and because of its close proximity to telco applications it is highly likely that our customers will expect some level of NEBS compliance. Has anyone in the group had experience of designing a NEBS compliant ATCA card, and If so do you have any advice or design pointers. Also as far as I understand, NEBS is a systems level standard so our single ATCA card cannot comply with NEBS in its own right. Is this correct? >From a quick scan of the internet, It appears that most card manufacturers claim to meet NEBS on single cards, one can only assume that they have conducted tests relevant to the card i.e. they test to ensure that the card would not fail NEBS when installed. Either that or they have tested the card in a NEBS compliant chassis. Our plan is to specify and design the card to meet the relevant NEBS requirements and to do basic tests. We would then work with any systems integrator to provide support for the card for the NEBS testing of their complete system (in which they have fitted our card). The claim would be that the ATCA card was 'designed to comply' as we would not have tested the final system. Are there any ATCA card manufacturers or systems integrators who may be able to comment on what they would design for or look for when purchasing such a card? Any comments or guidance would be grately appreciated. Regards, Duncan. Duncan Hobbs, Senior Compliance Engineer Product Compliance Laboratory Xyratex Technology Ltd. Havant, Hampshire, U.K. PO9 1SA tel: 02392 496444 fax: 02392 496014 [email protected] This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/listserv/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Ron Pickard: [email protected] Scott Douglas [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/listserv/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Ron Pickard: [email protected] Scott Douglas [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/listserv/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Ron Pickard: [email protected] Scott Douglas [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
