Verizon NEBS Technical Updates

Introduction

The Verizon NEBS Technical Update section provides the latest information about Verizon's NEBS Compliance programs. This page will present the most current technical information before it is applied to the Checklist and other NEBS Documents.

VZ.TPR.9211 , Vendor Power and Grounding Questionnaire, has been released to the industry. This TPR mandates the collection of data related to power fusing and operation. The data collected from this TPR shall be provided with all other NEBS documentation submitted for review.

VZ.TPR.9602 , Checklist for TMST ITL and Supplier Lab Audit, has been released to the industry. This TPR provides an audit checklist to be used when conducting audits for the TMST Certification Program. TMST Certification is based on an analysis of simulation software and verification testing.

Prepared by Todd Talbot, DMTS, Verizon NEBS Compliance and Quality Assurance - 1/29/2010

VZ.TPR.9307 , Qualification Requirements for Printed Board Assemblies Manufactured with Lead-Free Solder for use in Telecommunications Equipment Released to Industry.

This was released to the industry at the 15th Annual NEBS Conference on October 27. This TPR provides the requirements for products that are manufactured with Lead-Free solder. VZ.TPR.9307 has an effective date of June 1, 2010, at which time all products supplied to Verizon with Lead-Free solder shall meet the requirements outlined in the document.

Prepared by Todd Talbot, DMTS, Verizon NEBS Compliance and Quality Assurance - 12/03/2009

GR-487-CORE, Issue 3: Accepted with Exceptions

The recent release of GR-487-CORE, Issue 3 has been reviewed and accepted with the following six (6) exceptions:

1. Requirement R3-4[4]: Statement 'Conformance is to be determined by supplier attestation' is not acceptable. Conformance will be determined by Verizon based on supplier provided data.

2. Requirements R3-6[6] and R3-7[7] are to remain as requirements.

3. Conditional Requirement CR3-112[87] (previously R3-100[87]) is to remain a requirement.

4. Issue 2 requirement R3-106[90] for UL rated weatherproof transfer switch is to remain as a requirement

5. Requirement R3-122[95] (previously R3-111[95]) is to remain in effect.

6. Requirement R3-137[103] (previously R3-126[103]) must also apply to Class 4 (OSP: -40C to +46C) equipment.

Current test programs referencing Issue 2 may continue without upgrade until March 31, 2010. All test programs, thereafter, shall be based on Issue 3.

Prepared by Tony Ali, DMTS, Verizon NEBS Compliance & Quality Assurance - 10/23/2009

GR-1089-CORE, Issue 5: Accepted

The recent release of GR-1089, Issue 5 has been reviewed and accepted. Current test programs referencing Issue 4 may continue without upgrade until March 31, 2010. All test programs, thereafter, shall be based on Issue 5.

Prepared by: Howard Davis, DMTS, Verizon NEBS Compliance & Quality Assurance - 10/1/2009

GR-1089 – ESD Warning Labels

Electronic components are susceptible, and therefore sensitive, to ESD effects. Regardless of immunity performance during testing, products shall have ESD warning labels permanently affixed to the front of the chassis, in a visible area on the assembly. If cards can be inserted into both the front and rear of the chassis, ESD warning labels shall be placed on both the front and the rear of the chassis assembly. The faceplate of individual circuit cards/modules need not be labeled.

Prepared by: Howard Davis, DMTS, Verizon NEBS Compliance & Quality Assurance - 10/2/2009

ATCA Standards:

Verizon takes exception to the slot-powering scheme defined by the Advanced Telecom Computing Architecture (ATCA) standards. The power allocated to each slot - 200 Watts per slot or up to 3200 Watts per shelf - is excessive and leads to high failure rates during NEBS testing. Conformance to NEBS requirements is a gating criterion for product approval. We evaluate each product on its merit and select the most cost effective solution to satisfy Verizon's business needs. NEBS compliance testing remains the only set of requirements that Verizon uses to evaluate products for safety, interference and functionality before deployment. For more information about Verizon's NEBS requirements, please download a copy of the TCG NEBS Compliance Checklist from this webpage.

Prepared by: Howard Davis, DMTS, Verizon NEBS Compliance & Quality Assurance - 3/29/2007

Verizon's Clarifications to GR-63 Issue 3, March 2006 - 4/6/2006

Verizon will require all testing and test reporting to be done to GR-63-CORE Issue 3 starting September 1st, 2006. Verizon continues to accept Issue 2 and will accept testing to Issue 3 with the clarifications listed below. We are currently revising the Verizon NEBS Clarifications document to reflect the new GR-63-CORE issue.

Section 4.2.2 Equipment Assembly Fire Tests
It is not necessary for the fans to be operational during the fire spread test. Verizon considers non-operation of fans during this test to be worst case scenario. Therefore, if after following the procedure outlined in Section 5.2.2, the methane gas flow in the line burner still cannot be sustained due to the velocity of the fan speed, the fans should be turned off and the test rerun from the beginning.

Section 4.2.2.1 Frame Level Fire Resistance Criteria
R4-27 Any flames extending outside the confines of the equipment under test (top, bottom, sides, front, & rear) shall not extend for 30 seconds or more. Violation of this requirement will be considered a failure.

Section 4.2.2.2 Shelf Level Fire Resistance Criteria
R4-33 Any flames extending outside the confines of the equipment under test (top, bottom, sides, front, & rear) shall not extend for 30 seconds or more. Violation of this requirement will be considered a failure.

Section 4.2.2.3 Smoke and Self -Extinguishment Criteria
O4-40 Verizon considers this Objective a Requirement. No more than minimal wisps of smoke is permitted after 15 minutes from the start of the test.

Prepared by: Chuck Graff, Director, NEBS Compliance & Quality Assurance - 4/4/2006

GR-468-CORE Fiber Optic Component (FOC) testing requirement.

All Active Fiber Optic Component testing to GR-468-CORE may be conducted at the component OEM, supplier, or equipment integrator's own laboratory facilities. Verizon no longer requires GR-468-CORE testing to be performed or witnessed by a Verizon-approved Fiber Optic Component (FOC) Independent Testing Laboratory (ITL). Verizon considers this standard to be very important for the verification and reliability of optoelectrical devices. Verizon reserves the right to examine GR-468-CORE test data from the OEM, supplier, or equipment integrator during the course of an equipment evaluation.

Use of Externally Mounted Ferrites - 5/4/2005

Verizon does not accept the use of externally mounted ferrites on metallic cable interfaces for the purpose of EMI compliance. If used, ferrites shall form part of the products, not the cable, and shall be placed within the chassis enclosure.

Prepared by: Howard Davis, DMTS, Verizon NEBS Compliance & Quality Assurance - 5/4/2005

Verizon's Guidelines for Physical Design of Next Generation Network Equipment - 8/26/2004

This document provides guidance for manufacturers when designing equipment to meet Verizon's central office requirements. This document addresses our policies for the following items:

Frame Depth and Aisle Spacing

Use of Covers and Doors

Thermal Management within COs

HVAC Systems -- Air Conditioning

Cooling -- Air Flow Direction and Temperature Rise

Cooling -- Fan Noise

Weight of Equipment and Impact on Floor Spacing and Loading

Use of Overhead Cabling

Use of Front-Access Connectors

Cable Strain Relief and Circuit Pack Access

Orientation of Fiber Connectors.

Document: SIT.NEBS.RQS.NPI.2004.018

Prepared by: Chuck Graff, Director, NEBS Compliance & Quality Assurance - 8/26/2004

Verizon's Statement on Telcordia GR-3108-CORE Issue 1, July 2004, Generic Requirements for Network Equipment in the Outside Plant (OSP) - 9/14/2004

Verizon has not accepted Telcordia's new Generic Requirements document GR-3108 and does not anticipate adopting this document in the near future. If Verizon decides to begin using this document advance notice will be posted as a Technical Update on this page.

Prepared by: Chuck Graff, Director - Verizon NEBS Compliance - 9/14/2004