Hi Trevor, The NEBS levels are functionally defined as:
* NEBS Level 1; the min acceptable level of environmental compatibility needed to preclude hazards and degradation of the network facility and hazards to personnel. Possible applications for Level 1 criteria include prototype equipment for trial, limited deployment of equipment used for non-vital services, and Competitive Access Provider collocated equipment. Note: Conformance to Level 1 does not assure equipment operability or service continuity. Operability criteria are assessed only in Levels 2 and 3. * NEBS Level 2; the min level of environmental compatibility needed to provide limited assurance of equipment operability within the network facility environment. This assurance of operability is limited to controlled or normal environments as defined by the criteria. Possible applications for Level 2 criteria include equipment deployed in highly controlled environments such as data centers and widespread or long-term deployments of equipment performing non-critical network service where loss of equipment operation under environmental extremes can be tolerated. * NEBS Level 3; the min level of environmental compatibility needed to provide maximum assurance of equipment operability within the network facility environment. The Level 3 criteria provide the highest assurance of product operability. Level 3 criteria are suited for equipment applications which demand minimal service interruptions over the equipment's life. Possible applications for the Level 3 criteria include critical network equipment such as digital switches, transport products, and power systems. Regards, Carmen Filimon, P.Eng. Product Safety Engineer, Leitch Technology Int' l Inc. > -----Original Message----- > From: Trevor Chainey [SMTP:[email protected]] > Sent: Thursday, December 18, 2003 9:07 AM > To: [email protected] > Subject: NEBS Compliance > > Hi all, > > Is there anywhere I can find out what the NEBS Level 1, 2 & 3 requirements > are. Obviously I can buy the Telcordia specs, but I just need a summary to > understand what we actually have to aim for. > > Thanks, > > Trevor Chainey > Telesoft Technologies Ltd. This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ieee-pses.org/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [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
