UCAR WirelessUCAR WirelessWANWAN

Update for NCABUpdate for NCAB

John HernandezJohn HernandezJeff CustardJeff Custard17-Oct-200717-Oct-2007

OutlineOutline

What is it?What is it? What do we use it for?What do we use it for? Wireless basicsWireless basics Review of each UCAR wireless linkReview of each UCAR wireless link Questions?Questions?

What is it?What is it?

Fixed wireless, point-to-pointFixed wireless, point-to-point Ethernet bridgingEthernet bridging Local to regional scaleLocal to regional scale

• 10 miles10 miles Up to 1 Gb/sec full duplexUp to 1 Gb/sec full duplex Average 99.95% reliabilityAverage 99.95% reliability

What do we use it for?What do we use it for?

Connecting off-the-grid places (MFS)Connecting off-the-grid places (MFS) Backup connections (ML)Backup connections (ML)

• Protection from fiber cutsProtection from fiber cuts• Business continuityBusiness continuity

IP voice and dataIP voice and data

Basics: Radio Frequency (RF)Basics: Radio Frequency (RF)

Microwave RF of note for us:Microwave RF of note for us:• 2.4GHz unlicensed (ML-MFS)2.4GHz unlicensed (ML-MFS)• 5.3/5.8GHz unlicensed (ML-JC)5.3/5.8GHz unlicensed (ML-JC)• 23GHz licensed (ML-MFS)23GHz licensed (ML-MFS)• 80Ghz (EHF) licensed (ML-FL)80Ghz (EHF) licensed (ML-FL)

Unlicensed is increasingly crowdedUnlicensed is increasingly crowded• ML-FL replaced due to interferenceML-FL replaced due to interference

Basics: ConsiderationsBasics: Considerations Clear line of sightClear line of sight Antenna type (size, gain characteristics, etc.)Antenna type (size, gain characteristics, etc.) Cabling and powerCabling and power InterferenceInterference Antenna alignment, fine tuningAntenna alignment, fine tuning Transmit power levelsTransmit power levels Weatherproofing, lightning protectionWeatherproofing, lightning protection Precipitation (link budget calculations)Precipitation (link budget calculations) Uptime acceptability numbers (calculated Uptime acceptability numbers (calculated

estimates)estimates)

Review of each WWAN linkReview of each WWAN link

Mesa Lab (ML) to Marshall Field Site Mesa Lab (ML) to Marshall Field Site (MFS)(MFS)

Mesa Lab (ML) to Jefferson County Mesa Lab (ML) to Jefferson County (JC) Airport facility(JC) Airport facility

Mesa Lab (ML) to Foothills Lab (FL)Mesa Lab (ML) to Foothills Lab (FL)

ML-MFSML-MFS

ML-MFSML-MFS

Primary 50Mbps link: licensed Primary 50Mbps link: licensed DragonWave 23GHz (23.475 / 22.275GHz DragonWave 23GHz (23.475 / 22.275GHz using “AirPair 50” radios with 2’ using “AirPair 50” radios with 2’ RadioWaves antennas)RadioWaves antennas)

Backup WWAN link: 802.11b link 11Mbps Backup WWAN link: 802.11b link 11Mbps (Cisco 350 series bridges; 2’ Antennas)(Cisco 350 series bridges; 2’ Antennas)

Final fall-back link: T1 from Qwest/C-ComFinal fall-back link: T1 from Qwest/C-Com• Primary for VoIPPrimary for VoIP

ML-JCML-JC

ML-JeffcoML-Jeffco

Proxim (now TeraBeam) Tsunami Proxim (now TeraBeam) Tsunami GX90GX90• Backup for primary Jeffco fiber Backup for primary Jeffco fiber

connectionconnection• Full-duplex 45MbpsFull-duplex 45Mbps• 5.745 / 5.83 GHz5.745 / 5.83 GHz• Andrew antennas (3 Foot Parabolic)Andrew antennas (3 Foot Parabolic)

ML-FLML-FL

ML-FLML-FL

BridgeWave AR80XBridgeWave AR80X• Recently replaced unlicensed Proxim Recently replaced unlicensed Proxim

systemsystem• Backs up ML fiber connectionBacks up ML fiber connection• 1 Gbps full duplex1 Gbps full duplex• Andrew antennas (2’ Parabolic Dual Andrew antennas (2’ Parabolic Dual

Polarized)Polarized)• Also provides backup for NOAAAlso provides backup for NOAA

ReferencesReferences

Project pages on the NETS webProject pages on the NETS web• MFSMFS• ML-FLML-FL• ML-JCML-JC

Data/spec sheets from vendors for Data/spec sheets from vendors for radios and antennasradios and antennas