1. Battery Backup Workshop Issues Joseph Mardesich Senior Director- Engineering Comcast California Region February 2, 2009

2. Comcast California Comcast Services: Video, Voice & Data Comcast Business Services Investment In California: Comcast invested $663m to improve California’s Infrastructure Employing more than 7,300 employees Comcast opened a new customer support and operations campus in Livermore

3. Comcast’s eMTA Overview

4. Battery Specifications eMTA installed with a Lithium Ion Battery Manufacture’s Specifications: 6-8 Hours of Stand By Time 4-6 Hours of Talk Time Times may vary based upon customer interactions Comcast Replaces the Battery free of charge to the Customer Depleted Battery take 10 hours to Fully Recharge Battery Status Alerts/Indicators: Monitors the status of the battery

5. Customer Premise Continuity Customer Education Keep eMTA Plugged into a Dedicated Electrical Outlet Do Not Leave Battery out of eMTA Comcast will Make a Second Battery Available if Requested

6. Additional Power Backup Options Uninterrupted Power System (UPS) Approximately $200 for Retail Outlets Limited time Gas Generator Continuous Power Backup if refilled

7. E911/ENS Continuity During Outage Generator at headend-switching facilities Batteries installed at network power supplies with mobile backup generators eMTA Batteries at the customer premises

8. Other Power Technologies for Customer Premise Solar Panels Consult with Energy Companies