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UCAR Wireless WAN

UCAR Wireless WAN. Update for NCAB John Hernandez Jeff Custard 17-Oct-2007. Outline . What is it? What do we use it for? Wireless basics Review of each UCAR wireless link Questions?. What is it? . Fixed wireless, point-to-point Ethernet bridging Local to regional scale 10 miles

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UCAR Wireless WAN

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  1. UCAR WirelessWAN Update for NCAB John Hernandez Jeff Custard 17-Oct-2007

  2. Outline • What is it? • What do we use it for? • Wireless basics • Review of each UCAR wireless link • Questions?

  3. What is it? • Fixed wireless, point-to-point • Ethernet bridging • Local to regional scale • 10 miles • Up to 1 Gb/sec full duplex • Average 99.95% reliability

  4. What do we use it for? • Connecting off-the-grid places (MFS) • Backup connections (ML) • Protection from fiber cuts • Business continuity • IP voice and data

  5. Basics: Radio Frequency (RF) • Microwave RF of note for us: • 2.4GHz unlicensed (ML-MFS) • 5.3/5.8GHz unlicensed (ML-JC) • 23GHz licensed (ML-MFS) • 80Ghz (EHF) licensed (ML-FL) • Unlicensed is increasingly crowded • ML-FL replaced due to interference

  6. Basics: Considerations • Clear line of sight • Antenna type (size, gain characteristics, etc.) • Cabling and power • Interference • Antenna alignment, fine tuning • Transmit power levels • Weatherproofing, lightning protection • Precipitation (link budget calculations) • Uptime acceptability numbers (calculated estimates)

  7. Review of each WWAN link • Mesa Lab (ML) to Marshall Field Site (MFS) • Mesa Lab (ML) to Jefferson County (JC) Airport facility • Mesa Lab (ML) to Foothills Lab (FL)

  8. ML-MFS

  9. ML-MFS • Primary 50Mbps link: licensed DragonWave 23GHz (23.475 / 22.275GHz using “AirPair 50” radios with 2’ RadioWaves antennas) • Backup WWAN link: 802.11b link 11Mbps (Cisco 350 series bridges; 2’ Antennas) • Final fall-back link: T1 from Qwest/C-Com • Primary for VoIP

  10. ML-JC

  11. ML-Jeffco • Proxim (now TeraBeam) Tsunami GX90 • Backup for primary Jeffco fiber connection • Full-duplex 45Mbps • 5.745 / 5.83 GHz • Andrew antennas (3 Foot Parabolic)

  12. ML-FL

  13. ML-FL • BridgeWave AR80X • Recently replaced unlicensed Proxim system • Backs up ML fiber connection • 1 Gbps full duplex • Andrew antennas (2’ Parabolic Dual Polarized) • Also provides backup for NOAA

  14. References • Project pages on the NETS web • MFS • ML-FL • ML-JC • Data/spec sheets from vendors for radios and antennas

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