Copyright © 2013 Cambium Networks, Ltd. All rights reserved. 1 Connecting the Un-Connected and Under-Connected October 2013

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. 2

e PMP Genesis 3 Resiliency Scalability Performance Security Ease of deployment Manageability Resiliency Scalability Performance Security Ease of deployment Manageability Mass Market n system on a chip (SoC) Custom high performing, synchronized and scalable MAC and PHY Mass Market n system on a chip (SoC) Custom high performing, synchronized and scalable MAC and PHY World’s most affordable, global broadband wireless solution for broadband wireless access to support developing communities, without sacrificing quality. Cambium Heritage Cambium Innovation

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. 4

A reliable, scalable solution at a breakthrough price: 2x2 MIMO in 20 / 40 MHz channels Incorporating key elements of Cambium’s scalable PMP Solutions – High Performance, Configurable GPS Synchronized operation – Effective QoS Management for support of prioritized data, voice and video – Designed for reliability following the Cambium Quality Process Managed by Cambium Network Services Software solution Available NOW, with enhancements to be introduced in the near future e PMP Solution Overview 5 Cambium Unique

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. 6 The Power of GPS Synchronization

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. Problems with Unsynchronized Wi Fi Solutions for Outdoor Broadband Wireless Access Customer Premises Customer Premises Customer Premises Customer Premises (1)Hidden Node Problem Causes “Collision Collapse” (2)AP to AP Interference when some APs Tx while others Rx SM to SM Interference also can occur Interference 7 One Solution: No Freq Reuse Large Guard Bands between frequencies

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. a) GPS Synchronized TDD MAC b) Automatic SM Tx Power Control c) Front-Back Antenna Isolation The Right Solution Is A High Performance GPS Sync Solution 8 8 Reduces Secondary Self Interference SM to Other AP Interference (UL to UL) AP to Other SM Interference (DL to DL) Allows for Frequency Reuse Reduces Secondary Self Interference SM to Other AP Interference (UL to UL) AP to Other SM Interference (DL to DL) Allows for Frequency Reuse Eliminates “Collision Collapse” and Primary Self Interference: AP to AP Interference (DL to UL) SM to SM Interference ( UL to DL) Allows for Reduction in Guard Bands Eliminates “Collision Collapse” and Primary Self Interference: AP to AP Interference (DL to UL) SM to SM Interference ( UL to DL) Allows for Reduction in Guard Bands Key Components Benefits downlink uplink

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. Primary Self Interference 9 AP5 AP4 AP3 AP2 AP1AP6 SM AP1 AP2 AP3 AP4 AP5 AP6 CMMCMM Each AP is transmitting at a different time AP: Access Point

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. 10 GPS Sync Eliminates Primary Self Interference AP5 AP4 AP3 AP2 AP1AP6 RM AP1 AP2 AP3 AP4 AP5 AP6 Each AP is transmitting at the SAME time AP: Access Point

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. Secondary Self Interference - Uplink 11 Freq A Auto SM Tx Pwr Control Auto SM Tx Pwr Control SM-X SM-Y AP-X AP-Y Antenna Front Amplifies Antenna Back Attenuates High Front Amplification and High Back Attenuation are required Need High Front to Back (F/B) Ratio > 30 dB

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. Secondary Self Interference - Downlink 12 Freq A SM-X SM-Y AP-X AP-Y Antenna Front Amplifies Antenna Back Attenuates High Front Amplification and High Back Attenuation are required Need High Front to Back (F/B) Ratio > 30 dB

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. The Importance of Spectral Efficiency Spectral Efficiency: – A measure of how efficiently a wireless solution utilizes RF spectrum – Defined as Throughput Achieved (bps) per Spectrum Utilized (Hz) – bps / Hz Clear Spectrum is a scarce resource A solution that makes efficient use of this scarce resource provides a superior Return on Investment to the Network Operator Example for Illustration: Four Sector AP Site 13 #3 #1 #4 #2

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. Spectral Efficiency of Deployment Alternatives 1)No Synchronization 2)Incomplete GPS Sync: – Inefficient Sync’ed MAC – No Tx Pwr Control – Poor Antenna F-B isolation 3)ePMP GPS Sync 1) 2) 3) D A C B No Freq Reuse Must have >= 2 x Channel BW Freq Separation between Chans Spectral Efficiency is: 4 x 80 mbps / ( ) = 1.6 bps/Hz No Freq Reuse Must have >= 1 x Channel BW Freq Separation between Chans Throughput down to 50 Mbps Spectral Efficiency is: 4 x 50 mbps / ( ) = 1.4 bps/Hz D A C B 2 Channel Freq Reuse Only 5 MHz Guard Bands between Adj Sectors Throughput supports 80 Mbps Spectral Efficiency is: 4 x 80 mbps / (40 + 5) = 7.1 bps/Hz B A A B 14 > 4X Spectral Efficiency

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. The ROI of GPS Synchronization 4X the Spectral Efficiency with ePMP, means 4X the number of subscribers, which means 4X the monthly revenue, which means Much Faster Payback with the ePMP 15

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. 16 Solution Capabilities

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. 17 e PMP Solution Overview High Performance GPS-Synchronized MAC Precision Timing Extended Dynamic Tx Range with Automatic Tx Power Control 3 Level QoS with Automatic VoIP Prioritization SW Platform including Intuitive GUI and Element Management System GPS Synchronized Radio Integrated Radio Sector Antennas 90 degree Sector 120 degree Sector

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. Deployment Configurations 18 Synchronized & Unsynchronized PTP Links Unsynchronized PTP Links Synchronized & Unsynchronized PMP

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. What’s Included With the Radios Power Supply Radio Module GPS Antenna GPS Synchronized Connectorized Radio Power Supply Radio Module Mounting Strap Unsynchronized Integrated Radio 19 NA SKU Only C058900A112A NA SKU Only C058900C132A

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. Radio Interconnections RF Connections Gigabit Ethernet GPS Antenna Connector Ground Lug (optional) Auxiliary 100BaseT Ethernet Main 100BaseT Ethernet GPS Synchronized Connectorized Radio Unsynchronized Integrated Radio 20

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. Sector Antennas 21 Slot for GPS Antenna Removable Protective Cover Grounding and Mechanical Connection via screw Adjustable Brackets

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. Solution Specifications ParameterSpecification Frequency Bands5 GHz: ; 5470 – 5875 MHz* Headline Throughput (40 MHz Channel) 200+ Mbps Maximum Tx Power23 dBm Receive Sensitivity-69 dBm (2x64QAM) to -86 dBm (QPSK 1/2) Power Consumption8.5 W Maximum Environmental-30C to +55C Operating Temp Antenna Gains Integrated: 13 dBi 90 deg Sector: 15 dBi 120 deg Sector: 14 dBi * FCC & IC Certification for 5.2/5.4 GHz is pending

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. Radios can be configured as AP, SM or PTP 20 / 40 MHz Channel Standard 5 GHz Frequency Bands: – , 5470 – 5875 MHz – 5.8 GHz Band Available Now – FCC Grants for 5.4 GHz and 5.2 GHz are pending GPS Sync and non-sync modes Automatic Tx Power Control ABAB Freq Re-use (5 MHz guard) 3 Level QoS with Automatic VoIP Prioritization L2 Bridging with NAT L2 / L3 Firewall Capabilities VLAN Support SNMPv2 ePMP Solution Capabilities 23

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. Cambium Reliability Recipe 24 IngredientePMP Design with Margin High Quality Components ESD / Surge Protection Robust Enclosure Robust Design Verification Reliability Testing (ALT) High Quality Manufacturing

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. GPS Synchronization Throughput & Scalability * Throughput as measured in a 20 MHz channel at highest modulation, DL/UL = 75/25 25

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. 26 e PMP Operations and Management

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. Management Tools Overview Intuitive Graphical User Interface for Individual Radio Cambium Network Solutions Server (CNS) for Centralized Management SNMPv2 MIB Access Test Tools: – Spectrum Analyzer – Throughput Test – Ping Test – TraceRoute Test 27

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. Easy to Use Management Interface Reduces Operational Expense

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. 29 Cambium Network Services Solution (CNS)  New Element Management System for ePMP  Initial Release will support:  SW Upgrades  Future Releases will Support  Monitoring of traps and statistics  Configuration Updates  Management of other Cambium PMP/PTP Solutions

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. Summary

Copyright © 2013 Cambium Networks, Ltd. All rights reserved. e PMP leverages Cambium’s 10+ years of experience to bring a level of reliability and scalability never seen before at this price GPS Synchronized Operation is the key to scalability and reliability of performance and for making optimal use of scarce available spectrum: – Reduces self-interference – Allows for a high degree of frequency reuse – Allows for dense, high capacity performance without impact to reliability This is just the beginning for the ePMP Portfolio. Look for enhancements and additions to the portfolio in the near future For more information visit: The ePMP Solution is available NOW. Visit: – e PMP 31