NRIC IVNetwork Reliability and Interoperability Council

Washington, DC

October 14, 1999

Rick Harrison

Telcordia Technologies

732-699-6720

rick6@telcordia.com

NRIC IVFocus Group 3

Subcommittee 1 : Observations/FindingsPower Continued: Focus on Year 6 7/1/98 - 6/30/99 Outages 22 Outages

12 - Root Cause Commercial/Backup Power Failure 10 Root Cause Procedural

8 Sub Cause Standby Generator BPT Findings

15 Outages with Best Practice implications

PW BPs applicableto outages

Number of outages

PW45 3 OutagesPW69-71 7 OutagesPR03 7 OutagesPW57, 58 2 OutagesPW51, 52, 56 2 Outages

NRIC IVFocus Group 3

Subcommittee 1 : Observations/FindingsPower Continued: Focus on Year 6 7/1/98 - 6/30/99 Outages

BPT Findings Continued PW69-71 & PR03 All relate to MOPs and Installation

Guidelines PW69 - Telcos should have documented installation

guidelines PW70 - Telcos should clearly communicate their installation

guidelines to all involved parties PW71 - On-site installation acceptance should include a

quality review of conformance to the company's and vendor’s guidelines

PR03 - MOPs and Acceptance/Verification Check-off Sheets for Hardware and Software Growth/Change Activities …

All of the above were rated highly effective, implemented and low cost to implement

NRIC IVFocus Group 3

Subcommittee 1 : Observations/FindingsPower Continued: Focus on Year 6 7/1/98 - 6/30/99 Outages

BPT Findings Continued Six remaining Outages

1- Under-engineered for load 1- Lightning 4- Engine/hardware failure

• 3- multiple failures• 1 - Remote location in the mountains, bad

weather forced back helicopter and SnowCat trip was over 4 hours.

Two new Best Practices identified related to Low Voltage Disconnect and Alarm

NRIC IVFocus Group 3

Subcommittee 1 : Observations/Findings Continued

Essential Services ECOMM of NRCII had 33 recommendations which

posed many options and alternatives to improve reliability

Many of the above recommendations were complementary and Supplementary

Survey Data indicated confusion regarding implementation responses

NRIC IVFocus Group 3

Subcommittee 1 : Observations/Findings Continued

Essential Services SC1 analysis resulted in a complete revamping of the

Essential Services Best Practices Deleted redundant BPs Deleted “Not Best” Combined related options and alternatives that

supported the same goals and objectives ES01 + ES02/ES01 + ES03 = ES04

NRIC IVFocus Group 3

ES01 + ES02/ES01 + ES03 = ES04

ES01- Diverse Interoffice Transport Facilities ES02 - Diverse Interoffice Transport Facilities with

Standby Protection (Option of ES01) ES03 - Diverse Interoffice Transport Facilities Using DCS

(Option of ES01) ES04 - Fiber Ring Topologies for 911 Circuits

(Accomplishes the goals of ES01,02&03)

NRIC IVFocus Group 3

Subcommittee 1 : Observations/Findings Continued Essential Services

33 Best Practices Evaluated 8 Deleted 7 combined with others 18 Best Practices

NRIC IVFocus Group 3

Subcommittee 1 : Observations/Findings Continued Supplier Best Practices

SP05 Human factors represents a new paradigm for vendors. There will be increased “emphasis” due to the Procedural. Errors Team Report.

SP12 Establish Core Team to plan, test and evaluate change - Service Provider initiated BP that suppliers should participate in. Not a Supplier BP Delete (See PR14)

Add PR04 Information Sharing Guidelines - as SP12 Survey reflects continued high implementation Confirmed broad industry applicability beyond

traditional Telcom suppliers Combined categories of DCS, Switch and Signaling

into 1 Network element category

NRIC IVFocus Group 3

Next Steps

July -A Best Practice by Best Practice review and analysis of the survey responses COMPLETE

-Review NRSC Facilities Solution Team Report for Best Practice implications ONGOING

August -Complete survey analysis and gain consensus

around final recommendations COMPLETE

November -Draft 1 of final report ( deferred due to renewed focus on Power)

December -Complete final report