Microsemi Corporation Time Synchronization Trends for Critical Infrastructure Duke Buckner – Strategy and Business Development Frequency and Time Division

Company Overview Leading-Edge Semiconductor and System Solutions Differentiated by: Power Reliability Security Performance High-value, high barrier-entry markets: Aerospace & Defense Communications Data Center Industrial FY 2017 Revenue: $1.8 Billion >4,500 employees world wide Recently acquired by MCHP (>$3.4B Annual revenue) 2

Frequency & Time Division Synchronize the world - from the ocean floor to satellites in space…and everything in between. Mission Be the trusted source of sync, timing and frequency solutions where precision, accuracy, and reliability matter. Solve customer challenges by creating and applying precise sync and timing solutions. Markets Communications, Defense, Space, Infrastructure, Datacenters Customers Critical Infrastructure (Utilities, Rail, Public Safety, Telecom Operators), Satcom, System Integrators/NEMs, Defense prime contractors and Government agencies, Geophysical survey operators, Datacenters, Enterprise IT, Test & Measurement, Medical, Energy Applications Precise timing and frequency references Holdover for GPS vulnerability © 2018 Microsemi Corporation / Proprietary Information

Frequency and Time Division Business Synchronization Products Clock Products Government Systems and SDA Piezo Oscillator Products Frequency & Time Distribution Systems 1588 Grand Masters NTP Servers GPS Instruments CSAC / Rubidium Clocks Cesium Clocks Hydrogen Masers Frequency References High performance Time & Frequency solutions Space Qualified and Military oscillators Custom and Configurable systems Communications, Mil, Industrial and Space Oscillators Crystal Oscillator (XO) Voltage Control (VCXO) Temp Compensated (TCXO) Oven Controlled (OCXO) Evacuated Miniaturized Oven Controlled (EMXO)

Broadest Range of Oscillator Stabilities Atomic Clocks Piezo Oscillators

Leading the industry in “Time” Systems Components Market leader for timing infrastructure 93% of UTC time “contributions” >60% worldwide market share Over 400 PTP networks deployed worldwide Leading market share for NTP servers Technology leader for timing components Miniature Atomic oscillators Precision crystal oscillators (recent Vectron acquisition) Network synchronization ICs (IEEE-1588, SyncE) Switches, PHYs and PoE ICs TECHNOLOGY SYSTEMS CSAC and BIPM TimePictra Domain Time II Audit Server

GPS Time and Frequency Distribution Architecture UTC(USNO) Cesium tubes in GPS satellites 4410 Sync Systems in Critical Infrastructure Space Segment SyncServer TimeProvider User Segment Modular Systems Control Segment Cesium and Maser Atomic Clocks in USNO Control Station Critical Infrastructure

Critical Timing Programs GPS III F-22 Lightning and F-35 Raptor Undersea

Time Enables Critical Infrastructures Data Centers Power Grid Communications Enterprise Communications Wireline Communications Secure Communications Transportation Cellular Communications Financial Exchanges

Time Enables Critical Infrastructures TRENDS: Accuracy MiFID II, Phase accuracy for wireless communications and power grid, ePRC/ePRTC standards in telecom Resiliency GNSS Vulnerability is not new, however nefarious jamming and spoofing is Gov entities and critical infrastructure are investigating ways to operate in GPS denied environments through cesium reference clocks and autonomous timescales Security Analogous to virus/phishing/DoS threats, GNSS spoof detection and mitigation requires multilayer approach to detect, protect and mitigate. Data Centers Power Grid Communications Enterprise Communications Wireline Communications Secure Communications Transportation Cellular Communications Financial Exchanges

Secure Time for Critical Infrastructure Accuracy Visibility Resiliency BlueSkyTM GPS Firewall UTC Time Server with Atomic clock backup oscillator SyncServer S600 Satellite based UTC timing traceability Atomic Clocks Embedded Component and Modules Autonomous Frequency Standards Timestamping clients Time Auditing Infrastructure management Time Measurement

BlueSkyTM GPS Firewall Identifies spoofing and jamming and protects GPS systems Integrates seamlessly between existing GPS antenna and GPS system Optional external 1PPS and 10 MHz timing reference inputs for extended holdover and enhanced detection capabilities Local and remote CLI in addition to secure and easy-to-use web interface Seamless integration with TimePictra provides end-to-end management

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