Update for NCAB John Hernandez Jeff Custard 17-Oct-2007 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 Up to 1 Gb/sec full duplex Average 99.95% reliability

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

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

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)

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)

ML-MFS

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

ML-JC

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)

ML-FL

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

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