1. Wireless Case Study Jan Snyder San Antonio Community Hospital Upland, CA

2. Highly mobile workforce Need instant and continuous access to information Desire greater staff efficiencies Opportunity to improve service Why Wireless?

3. First-generation WLAN installed 1999 Wi-Fi: intriguing but costly to install and support Difficult to troubleshoot, limited capabilities Very difficult to scale Wireless Experience

4. Physician/nurse communications Access to PACS (Picture Archiving and Communications Systems) –Storage and retrieval of radiographic images –Improves drug delivery accuracy Efficient patient flow management Leverage existing infrastructure Critical Requirements

5. PACS network requires failure- resistant infrastructure Layer 3 network –Two core switches No failure in 43 months Importance of Redundancy

6. Crossing Layer 3 subnet boundaries is critical Layer 2-based WLAN system enables greatest mobility Applications, such as voice, uninterrupted while roaming Secure connections link wireless users between PACS subnets Secure encryption guarantees privacy Need for True Mobility

7. Roaming Across Layer 3

8. Emergency – bedside data entry Surgery – wireless x-ray display Admission – quicker assessment Case management – improves care, streamlines patient flow Discharge – frees up bed space for new patients Services Improved

9. Permits nurses to communicate with physicians Requires support for fast roaming with no change of IP address Requires strong QoS in WLAN Enabled via new PBX that links wireless to desktop phones Voice over Wireless IP

10. Total Cost of Ownership (One-Year Period) Old Arch.New Arch. Capital$180,000$149,000 OpsSite survey$8,000$2,000 Cabling$53,000 Deployment$37,000$2,000 Config APs$15,000$1,000 Support$25,000$2,000 subtotal$128,000$63,000 TCO(one year)$318,000$212,000

11. Total Cost of Ownership (Five-Year Period) CostOld ArchNew Arch Capital$360,000$298,000 Operations$488,000$148,000 TCO (5 years) $848,000$446,000

12. Productivity Gains Old NetNew NetAnnual Savings Case mgmt15 patients/ nurse/day 20 patients/ nurse/day $150,000 Emergency$20,000 Admissions$86,000 Discharge$67,000 IS$42,000 Total$365,000 Formula: 33% productivity increase X annual nurse salary X 15 nurses = $150,000

13. Costs for one year = $212,000 Savings for one year = $365,000 ROI = less than one year Return on Investment

14. Physicians and nurses communicate continually Constant access to PACS for radiology images Efficient patient flow –Admission, case management, discharge Leverages existing network WLAN Meets Needs

15. Lessons Learned (Microsoft 2001 Deployment) Microsoft ProblemsSACH Solution 25 users per APDesign for capacity 10-meter ruleDual-radio APs Manual site surveyAutomated planning 1 service call per 40 APs per day Automated tool for troubleshooting Two cables – datalink and console Two cables – redundant Ethernet Backup AP configsConfigs stored in database “Buglight” syndromeDual PoE, datalinks

16. Users roam and communicate Ease of use –No changes to their handheld device, wearable phones Security – authentication and encryption –Users transmit data securely Mobility –Users always have correct network access as they roam (Identity-Based Networking) Benefits for Users

17. Simplified planning and design Depiction of RF transmissions Automatic configuration of WLAN –WLAN switches and APs No changes to clients or core network User location on the floor plan Rogue detection and location on plan –APs, users, ad hoc users 70% to 90% reduction in OpEx Benefits for IT