Hello All, I thought I would chime in after the last response. It is a common mis-conception that NEBS does not apply to CPE. This is incorrect and GR-1089 and GR-63 explicitly support this position. GR-1089-CORE in Appendix B, table B-1 describes Type 1, 2, 3, and 4 equipment and which tests apply to those. Types 3 and 4 are specifically for CPE equipment and thus testing is required. The only difference between C.O. tests and CPE tests is in section 4 which is Lightning and Power Fault. GR-63-CORE describes how it applies to "Network Equipment at Remote Locations" in section 2.9. Basically it describes in section 2.9 how GR-63-CORE criteria apply to virtually all equipment deployed by a service provider that was not mentioned in the scope at the beginning of the standard. Section 2.9 also adds additional requirements from other Telcordia documents depending upon the equipment and its intended deployment location. Why this is in section 2.9 and not discussed in the scope or other more appropriate place I have never been able to figure out. The point is that it is there, and as such GR-63-CORE also applies to CPE deployed by a service provider. With regard to Listings do not forget that OSHA requires equipment located in a workplace to be Listed by an NRTL even if the location is exempt by the NEC via article 90-2. That is why most RBOC's require Listings even when NEBS does not (although it should be corrected to reflect the OSHA regulations for most equipment ). Just my two cents and not necessarily that of my employer, -----Original Message----- From: Servais, Jean [mailto:[email protected]] Sent: Friday, February 15, 2002 8:26 AM To: Peter Merguerian; 'Tania Grant'; Michelle Cho / INT Compliance; [email protected] Subject: RE: [URGENT] Need some information about NEBS..
According to GR-1089, if the unit is AC powered it must be listed through an NRTL. If the unit is DC powered there is no requirement for listing as long as the unit is in the space defined as a CO. CPE equipment does not fall under the guidance of NEBS. RT equipment, depending on the customer may need NEBS or FCC and Safety. Alain Servais Manager Product Compliance Spirent Communications 15200 Omega Drive Rockville, MD 20850 301-590-3691 -----Original Message----- From: Peter Merguerian [mailto:[email protected]] Sent: Friday, February 15, 2002 5:23 AM To: 'Tania Grant'; Michelle Cho / INT Compliance; [email protected] Subject: RE: [URGENT] Need some information about NEBS.. Tania, Your state that NEBS requires UL1950 safety testing. This may be true for CPE but not equipment sitting at the CO. Please correct if I am mistaken. This e-mail message may contain privileged or confidential information. If you are not the intended recipient, you may not disclose, use, disseminate, distribute, copy or rely upon this message or attachment in any way. If you received this e-mail message in error, please return by forwarding the message and its attachments to the sender. PETER S. MERGUERIAN Technical Director I.T.L. (Product Testing) Ltd. 26 Hacharoshet St., POB 211 Or Yehuda 60251, Israel Tel: + 972-(0)3-5339022 Fax: + 972-(0)3-5339019 Mobile: + 972-(0)54-838175 -----Original Message----- From: Tania Grant [mailto:[email protected]] Sent: Friday, February 15, 2002 10:07 AM To: Michelle Cho / INT Compliance; [email protected] Subject: Re: [URGENT] Need some information about NEBS.. Michelle, I am providing you with a generic test matrix of several years back of an actual product that underwent NEBS compliance testing. I have stripped out any product references. Please note that test duration and cost will differ depending upon your particular product, and does not include any safety testing to UL 60950 even though this is also a NEBS requirement. Thus, the time and cost will increase. Also note that, depending upon your location, not all of these tests can be performed by a single test laboratory;-- you get to ship your product around. Be also aware that the same can happen even though the lab states that they will take care of everything (then they sub-contract it to other labs!). You will also need to have one or more of your people at the labs to assist in EMC immunity testing & ESD testing, to package and unpackage units/modules/equipment. Packaged tests require that certain parameters are tested prior to packaging (you need a viable product), then come the packaging stress tests, then you unpackage the equipment and repeat tests to see which parameters failed. Brutal it is, as Mike stated. The test duration increases as you find that certain parts of your product need to be redesigned. As was also previously stated, you need to make sure that the whole engineering team reads the GR-63 and GR-1089 standards and understands the requirements. No sense spending money on lab tests for obvious failures. Tania Grant [email protected] <mailto:[email protected]> ----- Original Message ----- From: Michelle Cho <mailto:[email protected]> / INT Compliance To: [email protected] <mailto:[email protected]> Sent: Wednesday, February 13, 2002 11:31 PM Subject: [URGENT] Need some information about NEBS.. Dear all, I need some help about something called NEBS(Network Equipment Building System). The whole procedure... What exactly the NEBS is and where can I do the testing? How much? How long does it take? Thanks in advance! Michelle
