7000 Series - Overview. Wireless Overview Operating Bands Licensing & Guaranteed Service...

7000 Series - Overview

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

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

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

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

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

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

Comparison between 802.11b System and 7000-2 System

0

2

4

6

8

10

12

Distance 1.5 2.5 3 4.5 6 7.5 9

Distance [Km]

Ban

dw

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an

d T

hro

ug

hp

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[Mb

ps]

Bandw idth 802.11b

Throughput 802.11b

Bandw idth 7000-2

Throughput 7000-2

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.)

Installation Issues• LOS• Clearance

Installation Issues• LOS• Clearance

Site “A”Site “B”

Installation Issuesno clean Line of Sight

Site “A”Site “B”

Installation Issuesclean Line of Sight

Site “C”

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)

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

7000 Series7000-2 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

7000 Series7000-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 -35oC to +70oCBase Unit 0oC to +55oC

• Power Supply +24 volt DC at 45 watt

EIRP - Emitted Isotropic Radiated Power

Probot Advantages• Guaranteed Constant Bandwidth

• Fibre Link between base unit & RF Head1. Provides Electrical Isolation - Base Unit protected from

lightning strike surges2. 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 Quality1. <3ms Transmit delay allows high quality voice links to be

implemented as opposed to systems using MAC chips (802.11b Systems)

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

7000 Series7000-2 Typical Configuration

4 x 2048kbps @ up to 10km ETSI

or 45km FCC

4 x E1

24 VoltsDC input

4 x E1

24 VoltsDC input

RxAntenna

RxAntenna

RF HeadUnit & TxAntenna

Rack Mounted

orStandalone Base Unitswith LCD

Optical cables for

data transfer &electrical isolation

RF HeadUnit & TxAntenna

Low LossConnecting

Cable

7000 Series - Applications

7000-1

PABX

7000-1

MUX

Antenna Antenna

E1

PublicNetwork

Phone

Fax

Computer

E1

32 ChannelsPrivateFacilities

Voice

7000 Series - ProjectsRapid Deployment of Voice Services in Somalia

Main PSTNNetwork

7000-2

PABX sor Switch

4 x E1

PublicNetwork

7000-2

Mitel Switch

Antenna Antenna

4 x E1120 PSTNChannels

PrivateFacilities

Large CityMain

Exchange

Remote townsOutlying regions

Wireless Transmission - no delays forexcavation to lay cables. Distances

of up to 63km achieved with the useof repeaters or 1.2m antenna.

7000 Series

PABXPABX P 7000 P-7000 E1

PABX to PABX

Connections via a Mux

E1 P 7000 P 7000 MUX MUX

Router

Digital Switch

AnalogSwitch

PABX

Router

Digital Switch

AnalogSwitch

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

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 & lowcost installation of the radio components without compromising range performance

7000-2 Customer ReferencesBritish Telecom

T MobileMannesman - Vodaphone

MitelSiemens

UK PoliceSwiss Police

UK Ministry of DefenceNATO