Verizon - NEBS Compliance Technical Updates

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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.

Test and Measurement Equipment NEBS Requirements Policy

This policy, applicable to Test and Measurement Equipment that is either temporarily used in central office equipment space or permanently installed, is now covered by VZ.TPR.9303 (click here).

NEBS Requirements by Location

This policy, applicable to all Verizon network equipment, is now covered by VZ.TPR.9203 (click here).

Wind Driven Rain Calibration

This policy, applicable to Verizon outside plant equipment, is now covered by VZ.TPR.9304 (click here).

NEBS Compliance Clarification Document

In addition to the TCG checklist, Verizon has created a document to clarify and supplement certain aspects of NEBS requirements. This document has been reformatted and updated and is now available under VZ.TPR.9305 (click here).

Requirements for Customer Premises Equipment

Verizon has identified a minimum set of NEBS requirements for network equipment installed at customer premises. For the latest on Verizon's NEBS requirements for CPE, please visit our TPR page.

Laser Labeling Requirements

This policy documents Verizon's guidelines for labeling network products that emit light. These guidelines apply to light-emitting products installed anywhere in the Verizon network, from the central office to the customer premises. This document is now available under VZ.TPR.9204 (click here).

ATCA

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 Supports Telcordia's Position on the RoHS Directive

New legislation known as "RoHS" (Reduction of Hazardous Substances) bans certain chemicals and metals from some electronic manufacturing. In order to maintain high and predictable network reliability, it is the expressed desire of Verizon that:

1. Equipment manufacturers shall continue to use leaded-solder until alternatives have demonstrated reliability suitable for the telecommunications infrastructure, and;

2. Component suppliers shall continue to make available components compatible with leaded-solder manufacturing until alternatives have demonstrated reliability suitable for the telecommunications infrastructure.

Verizon supports the position conveyed by Telcordia in their Notice To The Industry. Click here to view this document.

Prepared by: Howard Davis, DMTS, Verizon NEBS Compliance & Quality Assurance - 11/2/2006

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

Verizon's Statement on Acoustic Testing - 1/12/2007

Section 4.6 Acoustic Noise
Effective immediately, Verizon will accept acoustic test results using sound power measurements as described in GR-63-CORE, Issue 3, sections 4.6 and 5.6. This test method was recently added to GR-63. Verizon will continue to accept acoustic testing using sound pressure measurements until December 31, 2006. During this interim, either test method will be accepted; both are not required. Testing shall be performed and results reported under normal operation and maximum fan speed conditions.

Prepared by: Howard Davis, DMTS, Verizon NEBS Compliance & Quality Assurance - 1/12/2007

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 NEBS Approved Equipment List

Verizon NEBS announces publication of our Approved Equipment List, including all equipment that has successfully met NEBS safety criteria. Primarily for our collocation clients, Verizon makes available this list of previously reviewed and accepted equipment in order to improve the process of identifying equipment for collocation deployments. Inclusion of equipment in this list does not constitute endorsement or use by Verizon or its collocation clients. Neither should it be automatically inferred that any equipment excluded from this list have necessarily failed NEBS safety criteria. Verizon reserves the right to update the list whenever new information becomes available.

Access the Verizon Collocation web page to view the NEBS Approved Equipment List.

NEBS Testing of AC Powered equipment - 1/17/2005

Verizon has extended its NEBS testing requirement to include certain equipment installed in non-central office space. In many cases this non-CO equipment will be AC powered. To reduce costs and expedite testing and review Verizon recommends that both versions of dual powered equipment, AC and DC, be tested and the results sent to Verizon for review.

Prepared by: Jim Giacchi, DMTS, Verizon NEBS Compliance & Quality Assurance - 1/17/2005

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.

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