1. 7000 Series - Overview

3. Wireless Overview Operating Bands Licensing & Guaranteed Service Regulations Guaranteed Bandwidth & 802.11 Range & link margin Weather interference Installation Issues Typical Applications Main Customer References

4. Operating Band - Actual 2.4GHz - LAN, 2Mbps, 8Mbps & 4x2Mbps wireless modems - only world-wide standard Good Range with Constant Throughput Broadband operation Interfaces - G.703, X.21 & V.35 Probot 7000-2

5. Operating Band - Future 5.8GHz - next standard operating band 2Mbps, 8Mbps & 4x 2Mbps (16x 2Mbps) wireless modems Good Range with Constant Throughput Broadband operation Standard G.703, X.21 & V.35 interfaces

6. Licensing Issues Unlicensed operation –No Regular Fees - one off cost to install –No license application -reduced time to installation –Possible interference requiring link adjustment Licensed operation –Yearly license fees - ongoing costs –License Application - waiting time to install –Guaranteed service - reduced chance of interference

7. Regulations ETSI Standards - ETS 300-328 2400MHz to 2483.5MHz - 83.5MHz of BW Direct Sequence Spread Spectrum & Frequency Hopping Spread Spectrum 100mW Emitted Isotropic Output Power –Actual power delivered to the output of the Transmit Antenna - ETSI limit

8. Bandwidth Issues IEEE802.11 Based products –High Overheads on 11Mbps (Bandwidth) link –Actual Data Throughput 2.5 to 3.5Mbps Probot Design –Low overheads & Guaranteed Constant 4x 2Mbps Bandwidth and Throughput

10. Range Issues ETSI Standard 100mW –24dBi Rx & 14dBi Tx Antennae – 10 Km. Standard link margin –No performance degradation for weather attenuation (even with heavy fog > 50m visual range) –fluctuation in RF noise floor –Working temperature between -35ºC and +70 ºC does not imply in performance (RF head) –link works error free Repeaters allow error free - transparent extension of a link (up to 90 Km.)

11. Installation Issues LOS Clearance

12. Installation Issues LOS Clearance

13. Site “A” Site “B” Installation Issues no clean Line of Sight

14. Site “A” Site “B” Installation Issues clean Line of Sight Site “C”

15. 7000 Series - Overview Wireless Modems & Multiplexers –Wireless Local Loop (WLL) applications –Direct sequence Spread Spectrum (DSS) Operates in 2.4GHz S-Band Range –Licence free Band in Europe & Most Countries –Requires Line of Sight for Operation –ETSI (100mW) or FCC (1W) versions Performance - (without repeaters) –up to 10km (ETSI) or up to 45km (FCC)

16. 7000 Series Main Technical Benefits –Guaranteed Constant Bandwidth –Enables High Quality voice links: Point-to-Point <3ms Tx delay (RF head-to-RF head) Point-to-Point with 1 Hop <5ms Tx delay (each hop adds approx. 2ms Tx delay) –Easy & Quick to Install –Highly Reliable, Robust & Proven Technology –Secure Transmission Signal is close to noise level

17. 7000 Series 7000-2 4x 2Mbps Wireless Modem Interface Options –4x E1 - 2Mbps G.703 –4x X.21/V.11 - nx64Kbps to 2048Kbps –2x E1 and 2x X.21/V.11 –1x E2 - 8Mbps G.703 Status Indicators –Rx, Tx, Error, Sync, Remote Alarm & Power Link Management- via Menu driven LCD Display Frequency Range - 2400 to 2483.5Mhz Spreading Code- CCK

18. 7000 Series 7000-Series Specification Output (ETSI)- 100mW (EIRP) Receiver RF Sensitivity -78dBm @ BER 10 -9 -84dBm @ BER 10 -6 -86dBm @ BER 10 -3 Processing Gain - 10dB minimum MTBF - 55,000hrs - Mil Std 217E Environmental RF Head -35 o C to +70 o C Base Unit 0 o C to +55 o C Power Supply +24 volt DC at 45 watt EIRP - Emitted Isotropic Radiated Power

19. Probot Advantages Guaranteed Constant Bandwidth Fibre Link between base unit & RF Head 1.Provides Electrical Isolation - Base Unit protected from lightning strike surges 2.No loss of link budget power (no signal attenuation) 3.Extends permissible distance between RF & Base units over conventional systems (up to 2 Km. With Multimode Fiber link between RF Head and Base Unit) Voice Quality 1.<3ms Transmit delay allows high quality voice links to be implemented as opposed to systems using MAC chips (802.11b Systems)

20. Probot Advantages Zero Error Rate –7000-2 tested for 10 -9 or better error rates over 10km Support & Service –Very low product return rates –Easy to set up and install –Rapid response technical support

21. 7000 Series 7000-2 Typical Configuration 4 x 2048kbps @ up to 10km ETSI or 45km FCC 4 x E1 24 Volts DC input 4 x E1 24 Volts DC input Rx Antenna RF Head Unit & Tx Antenna Rack Mounted or Standalone Base Units with LCD Optical cables for data transfer & electrical isolation RF Head Unit & Tx Antenna Low Loss Connecting Cable

22. 7000 Series - Applications 7000-1 PABX 7000-1 MUX Antenna E1 Public Network Phone Fax Computer E1 32 Channels Private Facilities Voice

23. 7000 Series - Projects Rapid Deployment of Voice Services in Somalia Main PSTN Network 7000-2 PABX s or Switch 4 x E1 Public Network 7000-2 Mitel Switch Antenna 4 x E1 120 PSTN Channels Private Facilities Large City Main Exchange Remote towns Outlying regions Wireless Transmission - no delays for excavation to lay cables. Distances of up to 63km achieved with the use of repeaters or 1.2m antenna.

24. 7000 Series PABX P 7000 P-7000 E1 PABX to PABX Connections via a Mux E1 P 7000 MUX Router Digital Switch Analog Switch PABX Router Digital Switch Analog Switch PABX The Probot 7000 series is transparent to the content of the E1 signal. Any configuring of the channels within the E1 stream must be controlled by the connected PBX or Multiplexor Connection Combinations

25. Product Proposition - Summary Robust technology offering excellent quality voice A full E1, E2, 4xE1 or 4x2Mbps signal with 10 km range and ETSI/FCC compliant Fast easy set-up for basic configuration without highly skilled RF installation engineers. Modular product platform allows easy & low cost installation of the radio components without compromising range performance

26. 7000-2 Customer References British Telecom T Mobile Mannesman - Vodaphone Mitel Siemens UK Police Swiss Police UK Ministry of Defence NATO