1. NEWLINK  Wireless Equipment Copyrights 2004 J3 Cabling Systems NEWLINK

2. Cabling Systems NEWLINK Introduction WLAN : Wireless = without wires, uses RF LAN = Local Area Network

3. Cabling Systems NEWLINK Typical “wired” LAN Indoors –Horizontal Cabling –Backbone or Vertical Cabling Building ABuilding B CT ESCT CE AT CI

4. Cabling Systems NEWLINK WLAN Applications Links Between Buildings (Campus Backbone) Horizontal Links (Indoors / Outdoors)

5. Cabling Systems NEWLINK Typical LAN Links Inter-Building –Campus Backbone

6. Cabling Systems NEWLINK Campus Backbone Links Buildings without planned conduit or feasible cabling routes Extends the coverage of a wired UTP LAN avoiding Fiber Optics cabling and equipment (require special antennas) Installation, Moves & Changes are easy to do

7. Cabling Systems NEWLINK Horizontal Links Allows the “Mobility Concept” for Workstations Connects in a Client-to-Server fashion Permits basic Pear-to-Pear networking Operates as Signal Repeater extending the reach Links workstations freely independently of conduit and outlets Could result the best choice for complicated runnings RF transmission is immune to EMI Brings the connection to the outdoors environment

8. Cabling Systems NEWLINK Ad-Hoc Mode Infrastructure Mode WLAN Linking Modes Small Office / Home Office Small Workgroups Distributed traffic Applications Internet connection sharing Hybrid Networking Wired / Wireless Uses APs : ACCESS POINTS 5 Topologies and Applications Public Areas

9. Cabling Systems NEWLINK LAN Wireless Elements ACCESS POINT ( AP ) Connects wired LAN networks cableadas with wireless devices and peripherals Could be configured in 5-ways Wireless

10. Cabling Systems NEWLINK Wireless Elements WIRELESS ADAPTER ( PCI, CARDBUS ) Used for peripheral PCs, printers and equipment Receives RF signals from the AP and transmits an omnidirectional signal back to the AP Could be linked in-between with other peripherals without using an AP (Ad-Hoc mode) Possess very low-power transmitters < 15 dBm

11. Cabling Systems NEWLINK Wireless Elements RF Transmission Used Transmission Frequencies ( 2.4 - 2.5, 5.0 – 6.0 GHz) Modulation ( OFDM, DSSS ) RF Channels ( 1, 2, 3, 11, 12 ) Data Rate ( 1, 5, 11, 24, 36, 54, 108 Mb/s ) Limited Power Industry Standards Compliance ( IEEE 802.11 a / b / g )

12. Cabling Systems NEWLINK RF Spectrum Extreme Low FrequencyELF300 Hz – 3 kHz Very Low FrequencyVLF3 kHz – 30 kHz Low FrequencyLF30 kHz – 300 kHz Medium FrequencyMF300 kHz – 3 MHz High FrequencyHF3 MHz – 30 MHz Very High FrequencyVHF30 MHz – 300 MHz Ultra High FrequencyUHF300 MHz – 3 GHz MicrowavesMW3 GHz – 30 GHz Milimetricsmm30 GHz – 300 GHz

13. Cabling Systems NEWLINK Wireless Standards IEEE 802.11a Operational Frequency 5.5 a 6 GHz Maximum Capacity 54 Mb/s Distance up to 100 m @ 6 Mb/s Distance up to 23 m @ 54 Mb/s Separated paths for upstream / downstream Up to 12 transmission channels, Tx y Rx simultaneously OFDM – Orthogonal frequency division multiplexing Effective Data rate = 30 Mb/s Do not talk with IEEE 802.11b nor with IEEE 802.11 g

14. Cabling Systems NEWLINK Wireless Standards IEEE 802.11b Operational Frequency 2.4 a 2.5 GHz Capacity up to 11 Mb/s Distance up to 100 m @ 1 Mb/s Distance up to 30 m @ 11 Mb/s Shared upstream / downstream communication paths Up to 3 transmission channels, Tx y Rx shared DSSS – Direct-sequence spread-spectrum Effective Data rate = 4 a 6 Mb/s Coexist, do not communicates with IEEE 802.11a Communicates fully with IEEE 802.11 g

15. Cabling Systems NEWLINK Wireless Elements 54 36 11 Mb/s meters 25 50 100 IEEE 802.11g Up to 108 Mb/s using “G” mode Up to 11 Mb/s on “b” mode Operates in the 2.4 GHz band 12 Transmition channels Coexists with IEEE 802.11a Comunicates with IEEE 802.11b and IEEE 802.11g Is the newest technology developed and 100% standarized

16. Cabling Systems NEWLINK WLAN Configurations ACCESS POINT BRIDGING MODE POINT - MULTIPOINT CLIENT-SERVER REPEATER 5

17. Cabling Systems NEWLINK Operates in Infrastructure Mode Uses Point-Multipoint Links Users get connection through APs Data packet switching performs in the switch Each user have a WLAN interface depending upon PC type, uses PCMCIA CardBus or PCI Access Point Configuration

18. Cabling Systems NEWLINK Operates in Infrastructure Mode Creates a Point-to-Point Link. Called a BRIDGE. Interconnects 2 LAN using Wireless This configuration ties MAC addresses from each AP to setup a unique link (*) Distance reaches up to 2 km depending upon installing conditions and when using exterior antennas Point to Point Configuration LAN A LAN B 2000 m (*)

19. Cabling Systems NEWLINK Creates Multiple WLAN arrays Interconnects Multiple WLAN, up to 8 ACCESS POINTS Each AP is tied to one LAN (*) Distance reaches up to 2 km depending upon installing conditions and when using exterior omni and directional antennas Point – Multipoint Scheme WLAN 3 Operates en Infrastructure Mode LAN 1 WLAN 1 WLAN 2 WLAN 4

20. Cabling Systems NEWLINK Operates in Infrastructure Mode Extends a dedicated Wireless Link coming from an AP wired to a LAN Interconnects One LAN with One WLAN using wireless (*) Distance reaches up to 2 km depending upon installing conditions and when using exterior antennas Client – Server Scheme AP SERVER CLIENT AP

21. Cabling Systems NEWLINK Operates in Infrastructure Mode Extends the AP coverage displacing it Interconnects One LAN with One WLAN using wireless (*) Distance reaches up to 2 km depending upon installing conditions and when using exterior antennas Repeater Configuration WLAN 1 2000 m (*)

22. Cabling Systems NEWLINK  Fullfills IEEE 802.11g  Operates up to 108 Mbps @ 2.4 GHz in SUPER G mode  Compatible with 802.11b @ 2.4GHz  Coexist with 802.11a @ 5.5GHz  Uses up to 12 RF channels  Throughput adjusted with distance and quantity of users  Offers new improved Security levels  Web Browser is accessible for configuration  Brings DHCP for Client access to an existing network NEWLINK WIRELESS EQUIPMENT

23. Cabling Systems NEWLINK  ACCESS POINT  LAPTOP ADAPTER  DESKTOP ADAPTER NEWLINK WIRELESS EQUIPMENT

24. Cabling Systems NEWLINK ACCESS POINT Operates in G and b modes Up to 108 Mb/s using super G mode linking APs Up to 11 Mb/s using b mode Supports encryptation WEP with 64 / 128 / 152 bits 5 configuration models 12 Transmission Channels Brings further Security with built-in Firewall Extended coverage using special antennas NEW-6500210

25. Cabling Systems NEWLINK NEW-6500230 PCMCIA - CardBus CardBus 32-bit Interface Operates in Super-G and b mode Up to 108 Mb/s using Super-G mode linking APs Up to 11 Mb/s using “b” Supports encryptation WEP with 64 / 128 / 152 bits Built-in Antenna Selectable Transmition Power Levels Plug & Play setting up Ideal for Home, Office and Mobil Laptops in public spots

26. Cabling Systems NEWLINK NEW-6500240 PCI ADAPTER CardBus 32-bit PCI Interface Operates in Super-G and b mode Up to 108 Mb/s using Super-G mode linking APs Up to 11 Mb/s using “b” Supports encryptation WEP with 64 / 128 / 152 bits 2 dBi gain removable Antenna Selectable Transmition Power Levels Plug & Play setting up Ideal for the Desktop PC where cabling results Expensive or hard to install

27. Cabling Systems NEWLINK Wireless vs. Wired WLAN technology is a tool design to coexist with LAN structured cabling systems The main WLAN advantage is : MOBILITY In most cases, costing per unit, (Mega-bit / US$) wired points are more cost- effective. This relationship is changing with time Several special conditions give handicap for Wireless links NEWLINK Super G Technology rises WLAN capacity in the Point to Point schemes up to 108 Mb/s, equivaent to 75% of effective rate for full-duplex Fast Ethernet 100 Base-TX Security levels on WLAN systems have been improved, always remain more vulnerable than wired Considerations USE WLAN EQUIPMENT WHEN IT BECOMES A SOLUTION, NOT A PROBLEM !

28. Cabling Systems NEWLINK Step by Step 1.Check for Capacity Demand 2.Define over a map the physical locations for each AP 3.Make a Field Test to get real information. Benchmark. 4.Adjust AP locations as needed. Use special antennas to get more signal strength and coverage. 5.Register and plot results and conclusions for future use 6.Define a Security Plan and USE IT. WLAN Installation

29. Cabling Systems NEWLINK Technical Isues WLAN Installation 1.Access Point devices and Antennas are placed over a Field Test basis. 2.RF signals are affected in several ways by walls, furniture and some decoration finishes. Thick materials and metals act as barriers. 3.For better reception think that RF signals travels in a line pattern from the AP to the mobile user and avoid brick walls in such path. 4.Fire retardant doors and materials are excellent, to content fire and RF signals also. 5.Keep the APs in a safe place, far away from other RF sources as microwaves, radio equipment, amplifiers.

30. Cabling Systems NEWLINK 6.Outdoor antennas increases RF Signal RECEPTION mainly. 7.To connect external antennas use special Low-Loss Cables. 8.Keep the AP as near as possible to the antenna. 9.If you loss more signal strength in the cable that you gain with the antenna. Double check your locations. 10.Use exterior antennas every time you want to keep a safe placement for the AP but signl is not strong enough. ie. Telecommunications Room, closed cabinet, etc. 11.Use omni-directional antennas when you want to attend several users from one AP. 12. Use directional narrow antennas when you need long Point to Point Links. i.e. Inter-building. WLAN Installation Technical Isues

31. Cabling Systems NEWLINK 12. Consider power supplies and network cabling up to the planned AP location. 13. Begin your setup changing small parameters at a time. Once the transmission is properly adjusted, implement security and other functions. 14. Test the wireless links at short distances and then go slowly far away the AP registering the different values for signal strenght and effective throughput. Use a laptop or palm. Plot them in a map. 15. Change the placement for APs and Test again to double check. WLAN Installation Technical Isues

32. Cabling Systems NEWLINK Antennas and Accesories In / Outdoor Antennas Point - to- Point Directional Antenna Point - Multipoint Omni-directional Antenna

33. Cabling Systems NEWLINK Ultra Low-Loss Cables AP Antenna Jumpers Surge Arrestor Antennas and Accesories

34. Cabling Systems NEWLINK NEWLINK WLAN

35. Cabling Systems NEWLINK Wireless Standards IEEE 802.11a PHY Layer, 54 Mbps, OFDM @ 5 GHz. Range 23m @ 36 Mbps. Up to 12 channels. IEEE 802.11b PHY Layer, 11 Mbps, DSSS @ 2.4 GHz, range 30m @ 11 Mbps. Up to 3 channels. IEEE 802.11g PHY Layer, Compatible con 802.11b, usa OFDM @ 2.4 GHz. Do not make interference with 802.11a. Range 30m @ 48 Mbps Super “G”. Up to 11 Channels Coverage and throughput are function of Radio Frequency Transmission variablesand subject to change with environmental conditions.

36. Cabling Systems NEWLINK Wireless Standards IEEE 802.11a PHY Layer, 54 Mbps, OFDM @ 5 GHz. Range 23m @ 36 Mbps. Up to 12 channels. IEEE 802.11b PHY Layer, 11 Mbps, DSSS @ 2.4 GHz, range 30m @ 11 Mbps. Up to 3 channels. IEEE 802.11g PHY Layer, Compatible con 802.11b, usa OFDM @ 2.4 GHz. Do not make interference with 802.11a. Range 30m @ 48 Mbps Super “G”. Up to 11 Channels Coverage and throughput are function of Radio Frequency Transmission variablesand subject to change with environmental conditions.