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Cablefr ee Cablefree Solutions Broadband Wireless Networks www.cablefreesolutions.com FSO and Radio

Cable free Cable free Solutions Broadband Wireless Networks and Radio

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Page 1: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Solutions

Broadband Wireless Networks

www.cablefreesolutions.comFSO and Radio

Page 2: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Who are Cablefree ?

• Founded 1997• Based on proven

technology• Privately owned, UK based• Technology Leadership –

first vendor to ship 622Mbps & Gigabit Ethernet

• International sales in 50+ countries through channel partners

• Proven track record in mission critical applications

Established in 1997, following three years of research and developmentCablefree are acknowledged leaders in wireless technology.

Page 3: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Introducing Cablefree Transmit Voice, Data and Video up to Gigabit speeds through the air

Between any locations where line-of-sight exists

Page 4: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Applications

Markets for Broadband Wireless

www.cablefreesolutions.comMarket

Page 5: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree LAN ExtensionsConnecting Customer buildings at full LAN

backbone speed, avoids the WAN bottleneck

PSTN+

Internet

Switch + PABX

E1, T1,Fast or Gigabit Ethernet

ATM 155 or 622Mbps

Switch + PABX

Users

Voice & Data ConnectivityE1 or T1Fast or Gigabit EthernetATM 155 or 622Mbps

Fully UpgradeableNo Frequency licenseNo Link Engineering

Management via SNMP, RS232 or GSM connection

500m ... 2000m

Main Office Remote Office

Users

Page 6: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Last Mile - PDHPDH access from POP to Customer,

alternative to microwave links or copper leased lines

SDH FibreOptic Network

Sonet ADM

1xE1 … 16xE1E2, E3, STM-1

Mux

CPE

PDH connection1xE1 … 16xE11T1 … 4T1E2, E3, STM-1

Fully UpgradeableNo Frequency licenseNo Link Engineering

Management via SNMP, RS232 or GSM connection

500m ... 4000m

NMC

Page 7: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Metro Area NetworkConnect Customers to POP sites – Virtual-Multipoint

LMDS replacement – Wireless bypass of Local loop

POP

POP

NMC

To each Customer:- E1 or T1- Fast or Gigabit Ethernet- ATM 155 or 622Mbps

No bandwidth SharingFully UpgradeableNo Frequency licenseNo Link Engineering

Management via SNMP, RS232 or GSM connection

Page 8: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree in Mobile networks

Microcell and cell-site backhaul for GSM, GPRS, 3G and EDGE traffic

SDH networkFibre or Microwave

MicrocellSite

MacrocellSite

E1, T1,4xE1, 4xT1E3, STM-1

NMC

No Frequency licenseNo Link EngineeringManagement via SNMP, RS232 or GSM connection

Page 9: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Fibre ResilienceUse CableFree to backup existing microwave links,

fibre or copper leased lines where redundancy is required

CPE

E1, T1,Fast or Gigabit Ethernet

ATM 155 or 622Mbps

CPE

Voice & Data ConnectivityE1 or T1Fast or Gigabit EthernetATM 155 or 622Mbps

Fully UpgradeableNo Frequency licenseNo Link Engineering

Management via SNMP, RS232 or GSM connection

500m ... 4000m

NMC

PSTN+

Internet

Existing Leased Line

Page 10: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Temporary LinksQuick-fit temporary links for Data or Outside Broadcast Use

License-free alternative to microwave or radio solutions

Compositeor Digital

Broadcast Video

Voice, Dataor Video

No Frequency licenseNo Link EngineeringManagement via SNMP, RS232 or GSM connection

Composite VideoDigital SDI Video 270 to 540MbpsData 10Mbps to Gigabit EthernetE1, T1 Voice connections

Page 11: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

1998

10Mbps69%

100Mbps28%

Other0%

TokenRing3%

1999

10Mbps33%

100Mbps48%

ATM-15511%

TokenRing2%

ATM-6222%

1000Mbps4%

2001

10Mbps17%

100Mbps71%

ATM-1551%

1000Mbps11%

1997

10Mbps75%

100Mbps25%

Other0%

0%

0%

0%

2002

10Mbps21%

100Mbps56%

ATM-1553%1000Mbps

20%

2000

10Mbps23%

100Mbps49%

ATM-15515%

TokenRing0% ATM-622

5%

1000Mbps8%

Cablefree’s Data Market TrendsNote: Figures are % sales by number of units, not turnover, excluding sales of telecom and voice products

Page 12: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

• High Fade Margin required to combat bad weather Rain – low attenuation < 9dB/km Snow – moderate attenuation < 12dB/km Mist – moderate attenuation < 12dB/km Thick fog – high attenuation up to

100dB/km

• System features meet ‘5-nines’ criteria

• Ultra-sensitive APD receivers

• High Quality optics & filtering

• Automatic Transmit Power Control (ATPC)

Cablefree Availability of FSOImportance of Fade Margin for FSO

Page 13: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

For 99.999% Reliability: Plan for worst-case local Fog densities

FSO illustration of Fog Densities

No fog – Visibility well over 2km

Light fog – Visibility over 1km

Thick fog – Visibility 400m

Use CableFree’s Link Planning Tools

Page 14: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree ATPC – how it works

No fog – Visibility well over 2km

Light fog – Visibility over 1km

Thick fog – Visibility 400m

In clear conditions, the CableFree ATPC system automatically reduces output power to a lower level, down to 1/16 of maximum.

Overload of the receiver is avoided even in bright sunny conditions

In moderate conditions, the ATPC controller turns the power up to ensure optimum power received at both ends of the link.

Sophisticated on-board software avoids overload or drop-out

In bad conditions, ATPC can increase the power to maximum output for a given product type.

Note: This means you can install a 4km FSO system say at 600m, to increase availability beyond that which a nominal 1km system could provide

Page 15: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree ATPC – with & without

CableFree link with ATPC switched off

CableFree link with ATPC

A CableFree link without ATPC enabled, showing significant variations in received signal level (RSSI).

RSSI variations can be caused by weather effects such as fog, heavy rain, snow or dust storms; also thermal effects, bracket movement and long-term drift

A CableFree Link with ATPC enabled in identical conditions shows no variation in received power (RSSI). The controller automatically adjusts the transmitted power levels to ensure optimum signal received at both ends of the link.

Optimum power levels mean minimum Bit-Error-Rate (BER) and reduced risk of overload

Page 16: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

FSO Choice of WavelengthAvoid the absorption peaks in the atmosphere

785nm 980nm

Slightly Greater fog penetration

• CableFree avoids absorption caused by water molecules

• There is no ‘magic wavelength’ which avoids fog – but …

• Longer wavelengths allow higher safe output powers

• A properly designed link budget is the most important

Page 17: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

FSO Reliability

• Solid-state Peltier cooling for long laser life - MTBF >20yrs• Use of multiple lasers and drivers - protects against possible failure of semiconductor lasers• Housings are water, moisture and rust-proof• System design uses quality components specified for high-reliability telecom systems• Proven track record with over 2000 deployments worldwide

CableFree has a ‘fit-and-forget’ design philosophy. Cooling, Heating & power management ensure reliability in all climates. Management systems provide indication of any degradation

Equipment Reliability

Page 18: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

FSO & Laser Safety

• Avoid risk of retinal damage• Output power –

Class 3B not acceptable, 1M is the accepted limit

• Large apertures are safer – Avoid ‘point source’ emission

• Divergent systems are safer – e.g. CableFree 0.5 degree

• Mounting locations – e.g. roof parapets safer than through glass

What are the requirements?

Page 19: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree FSO performanceQuality Transmit Optics: Circular, Wide beam

CableFree -Circular beam combats X & Y movement

Older product – Narrow Elliptical beam Misaligns in wind, vibration & building movement

10m

1,000m

Wide beam – no need for complex auto-tracking

Page 20: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Solutions Limited

www.cablefreesolutions.comProduct Portfolio

Product Portfolio

Page 21: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

• Entry-Level FSO System• Capacities: 2, 100Mbps & Gigabit• Range: 170m, 420m, 700m• Voice & Data Networks• Quick Installation• Plug&play Non-Upgradeable

Network interfaces• Cluster and Link Management tools• Same build Quality as other CableFree products

Ideal for cost-effective Enterprise networksAlternative to 802.11 radio links

Page 22: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree 622• High Capacity FSO• Capacity: 1 to 622Mbps • Range: up to 2km• Data Networking &

Telecommunications• Quick Installation• Fully Upgradable

Voice, Data & Video up to STM-4• Cluster and Link Management tools• Best-of-Breed since 1997

Perfect solution for Data Networking, last-mile links, SDH network access, Broadcast TV and CCTV Security

Page 23: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

• Long Range FSO• Capacity: 1 to 155Mbps • Range: up to 4km*• Data Networking &

Telecommunications• Quick Installation• Fully Upgradable

E1, 4xE1 up to STM-1• Cluster and Link Management tools• Designed for operation in extreme climates

Cablefree Access

The ideal choice for last-mile links, SDH network access,rapid deployment, GSM & 3rd Generation interconnect

*Max link distances depend on local climate

Page 24: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Gigabit • Wireless Gigabit FSO• Capacity: up to 1.5Gbps • Range: up to 1.5km• Quick Installation• Gigabit Ethernet, Gigabit

Fibre Channel and HDTV• Logical upgrade from

Cablefree Access and 622 systems• Cluster and Link Management tools• World Leader since 1999

Ideally suited for metro networks, IP network access,rapid deployment, Storage Area Networks and HDTV

Page 25: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree FSO InterfacesInterface modules for:

Data NetworkingEthernet 10, 100, 1000Mbps • Token Ring • FDDI • Fibre Channel • ATM-155 & 622

TelecommunicationsG.703 E1 • E2 • E3 • T1 • DS-3 • STS-1 • Sonet/SDH 155 & 622Mbps

MultiplexedVoice & Data 10+2 • 100+2 • Multiple (up to 16x) E1

Broadcast TelevisionPAL/NTSC Composite Video • Digital Broadcast 143 … 540Mbps

CCTV SecurityPAL/NTSC Composite Video • Multiple channels

Page 26: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree FSO upgradesSimple Plug-in upgrades preserve investment

E1

4xE1

E3

STM-1

10MbpsEtherne

t100Mbp

sEtherne

t100Mbp

s+ E1

CableFree Access,

622 or Gigabit

Cardsloaded

in ODU

or IDU

And so on …STM-4

1000Mbps

Page 27: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Radio – MPR• Medium Performance Radio• Capacity: up to 30Mbps • Range: up to 40km*• Quick Installation• Ethernet, VOIP, IP-video• Complimentary to FSO• P2P and P2MP operation• Cluster and Link Management tools• Best price/performance in the industry

Ideally suited for Wireless ISP, CCTV, FSO backup, last-mile, backhaul and client site deployment

*Max range depends on antennas and sites

Page 28: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Radio – HPR• High Performance Radio• Capacity: up to 80Mbps • Range: up to 40km*• Quick Installation• Ethernet, VOIP, IP-video• Complimentary to FSO• P2P and P2MP operation• Cluster and Link Management tools• Best price/performance in the industry

Ideally suited for Wireless ISP, CCTV, FSO backup, last-mile, backhaul and client site deployment

*Max range depends on antennas and sites

Page 29: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Comparison FSO & Radio

FSO (Laser) RadioMax capacity 1.5Gbps 80MbpsMax Range 4km 40kmInterfaces Any Ethernet only

(IP, PDH, SDH, video) (but also VOIP, IP video)

Modularity Interface/chassis Radio/antennaArchitecture P2P only P2P or P2MPDowntime in Thick fog, sandstorm InterferenceCost Moderate LowerPower 20-35W 10-20W

Comparing CableFree FSO and Radio products

Page 30: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

What are the trends in FSO?

Market Drivers• Higher bandwidths• Lower Costs – e.g. Residential• Longer range + higher availabilityTechnology• Longer wavelengths – 2.2um and beyond• Multiple wavelengths – WDM and DWDM• True multipoint deployment• Product engineering for volume

What can we expect from future FSO products?

Page 31: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree - Next Generation

Drivers for higher data rates are -• Wireless Metropolitan-area networks• Backup of SONET/SDH fibre rings• Disaster Recovery• 10-Gigabit Ethernet in 2001

The Demand for Wireless Bandwidth

Cablefree’s next product range will feature -• Entry-level of 2.5Gbps• Upgrade modules for 10Gbps and WDM• Optional FEC codecs for enhanced BER• Range 4km+ at 1550nm

Cablefree: Next Generation Optical Wireless

Page 32: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Solutions Limited

www.cablefreesolutions.comManagement Systems

Installation & Management Systems

Page 33: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

CableFree has demonstrated compatibility with all major vendorsof core, access and enterprise network equipment

Cablefree - Compatibility

Logos and Trademarks are property of their respective companies

Page 34: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

ODU+IDU configuration of Cablefree FSO Link

Connection Specifications:

Data: Multimode Fibre from IDU to the head unit

Power: 5-core cable carries power + telemetry

SNMP: 10BaseT UTP cable at IDU

Network:Fibre, coax or UTP from IDU

Cablefree Access, 622 or Gigabit

IDU IDU

MultimodeFibre

MultimodeFibre

Cablefree

CablefreeUp to

4000mPowerCable

Network

10BaseT

SNMP

PowerCable

Mains IN

Network

Mains IN

NoteRemote end IDU is optional – only 1 needed per hop

Page 35: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

PSU

All-Outdoor FSO configuration

Connection Specifications:

Network:Fibre, coax or UTP from Head Unit

Power: 5-core cable carries power + telemetry

RS232 Management or GSM-dial up connection at PSU

Cablefree Access, 622 or Gigabit

PSU

Coax, UTPor Fibre

Mains IN

Cablefree

CablefreeUp to

4000mPowerCable

Network

PowerCable

Coax, UTPor Fibre

Mains IN

Network

Page 36: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree FSO InstallationSimple Plug-in upgrades preserve investment

Alignment Module

Rear of FSO unit

Pan & Tilt Bracket

Alignment connectorSignal level meterInterface ModulesPower connector

HeadphoneMicrophoneL & R Signal meter LCDActive Power controls

FSO mounting surfaceTilt adjustment screwsPan adjustment screwsPlinth mount

Page 37: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree LinkManager™

• Connects to Cablefree system using IP LAN/WAN, RS232 or Dial-up modem

• Instant view of system performance

• Enables Logging of out-of-condition alarms, variations and long-term trends

• Ideal for monitoring of single links and use by field-service personnel

‘Live’ Connection for advanced system diagnostics

Page 38: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree ClusterManager™

• Central Management of large networks of Cablefree systems each connected to NMC by GSM or land-line connections

Central Management of an entire network of Cablefree links

• Up to 1,000 links

• Instant view of entire network performance

• Logging of out-of-condition alarms, variations and long-term trends

• Rapid implementation of network-wide management facility

Page 39: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Solutions Limited

www.cablefreesolutions.comInstallations

Customer Case Studies

Page 40: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree - Customers

Logos and Trademarks are property of their respective companies

      Over 2000 Customer Installations

Over 50 countries worldwide

Page 41: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Last-Mile Connections

Last-Mile STM-1 links for national carrier China Unicom

155Mbps STM-1 links in Tibet, China (Potala Palace, background).Note Non-LOS configuration, paths lengths 1.5km and 1.1km

Page 42: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Last-Mile Connections

Last-Mile STM-1 link in Hunan Province, China Railcomm

155Mbps STM-1 last-mile link in Hunan Province, ChinaMultiplexers deliver 4xE1 and 2x 10baseT to customers in MTUSystem operates even in thick fog, path length around 1km

Page 43: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree connects SohoNetMetropolitan Area Network in London uses CableFree

CLEC network uses Cablefree 155Mbps FSO to link end-customers to central‘hub site’ in London’s busy West End. Installed 1999.All links upgraded to Gigabit Ethernet in 2001

Page 44: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Private Metro Area NetworksAthens, Metropolitan Area Network for media group

First Phase of an Ethernet IP network uses Cablefree 622/100Mbps linksconnecting offices across busy centre of Athens

Page 45: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree - High Capacity ATM

High capacity wireless link with no requirement for frequency license

622Mbps link for a major City trading company in London

Cablefree offers high-capacity connection with quick installation

High capacity ATM traffic at 622Mbps connects two buildings,

running through the window glass at the top end - 36 floors up

Column roof mount on lower end is designed

to fit without piercing the roof covering

At the top end, bracing struts avoid the need

to drill into the building structure

Page 46: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree - Instant G.703!

London - an investment company needed a replacement link - fast!

2Mbps telephony solution for Guinness Flight Hambros

Line-of--Sight from the first end of the link near Tower Bridge - the

CableFree was to replace an older (unreliable) wireless system

The second end of the link installed showing the return line of sight

path and the distinctive skyline of central London behind

PABX-to-PABX connectivity achieved in 3 hours with a 2Mbps link

Installation is simple and here took

3 hours from start to sign-off

Page 47: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree non-LOS FSO + RFGigabit Ethernet + E1 non-LOS for Parthus in Dublin

Cablefree GbE and E1 links with a ‘back-to-back’ repeater siteLucent 2.4GHz ISM-band radio deployed for resilient fail-over

Page 48: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree 1+1 in The Hague

FSO + Microwave offers 1+1 resilience for mission-critical customers

Fast Ethernet + 38GHz MW backup

Cablefree can be deployed for high-availability carrier-type applications

Line-of-sight connection between two buildings in The Hague, Netherlands.Customer requirement for >99.999% met by ‘dual technology’ installation of FSO + MW links.

This solution offers complete protection of equipment, power, cabling, LOS, weather and possible interference

Page 49: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree LAN ExtensionsMetro LAN extensions, Datapath Inc, Manhattan

Fast Ethernet network interconnect

across busy Manhattan forfor this IT company, bypassingneed for expensive leased lines

A ‘Star’ configuration connects the corporate headquartersto remote office sites at full 100Mbps throughput

Page 50: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree LAN-LAN connection

Gigabit Ethernet backbone for Lewisham College, London

Gigabit Ethernet link connectsfrom LAN to LAN across campusfor this London College,

avoidingthe ‘WAN bottleneck’

Note differing mounting options selected for each building,to create optimum mountings for line-of-sight connection

Page 51: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree - Wireless backup

Wireless link adds resilience to an existing 34Mbps fibre over 1.4km

34Mbps backup link for a UK national utility company

Cablefree is an ideal backup for existing fibre links or leased lines

Line-of-sight connection from the roof of the main

headquarters to remote site - crossing a busy town

centre, several roads and the river Thames

Page 52: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Integrates Voice & Data

100+2 Voice & Data link for London Weekend Television

Cablefree integrates multiplexed voice & data over a single FSO link

Page 53: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Powers Formula 1Short-distance links customised for F1 racing teams

Gigabit Ethernet Systems customised for wide-beam ‘fit-and-forget’ operationfor pitwall-to-garage communications are used at all F1 races worldwide

CableFree FSO is used by a majority of

F1 teams for short-range comms using 100Mbps or Gigabit Ethernet

Network segments

Page 54: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Temporary Deployment

Outside Broadcast link for Channel 4 Racing

Duplex Composite video from mobile vehicle to commentary box.Deployed on tripods at Lingfield racecourse, UK. Distances up to 1km

Page 55: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Last-Mile Satellite downlink for Merlin Communications

Cablefree 622 video link crossing river Thames, London, 1.0kmCustomer required relay of Satellite feed for less than 4 hours

Cablefree Temporary Deployment

Page 56: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree FSO in Tropical Rain

CableFree link deployed in Kuala Lumpur, Malaysia

Cablefree service provider trial in ITU rain-zone ‘P’, highest in the worldMicrowave spectrum usable <18GHz due to extreme rain-fade

Page 57: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree in the Middle EastLAN extensions at Al Ain Airport, U.A.E

Cablefree link provides 10Mbps connectivity crossing runway, over 1.0km

Roof-top ambient temperatures >60 deg. C

Page 58: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree links Cap GeminiRemote data link for IT outsourcing of Cambridge Council

Cablefree 622 / 10Mbps in Cambridge, UK

Page 59: Cable free Cable free Solutions Broadband Wireless Networks  and Radio

Cablefree

Cablefree Solutions Limited

For more information,please contact CableFree

Solutionsor visit

www.cablefreesolutions.comwww.cablefreesolutions.com