Table of Contents Introduction: Why We Must Re-examine M2M and IoT Today Concepts and Definitions: What is M2M? What is IoT? 2.1 What is M2M (Machine-to-Machine)? 2.2 What is IoT (Internet of Things)? 2.3 A One-Sentence Summary of Their Differences Historical Evolution: Technological Era Shift from M2M to IoT Technical Architecture Comparison: Point-to-Point vs. Cloud-Centric 4.1 M2M Architecture: Point-to-Point (P2P) System 4.2 IoT Architecture: Cloud-Centric Collaborative S

Table of Contents Introduction: Why "Antenna = Performance Ceiling" Core Concepts Overview 2.1 Standards and Frequency Bands: Impact on Propagation and Size 2.2 Antenna Metrics: Focus on Key Points 2.3 Layout and Installation: Translating Specs to Reality 2.4 What to Measure: Know Your Metrics 2.5 Quick Diagnosis and Action Mapping Antenna Types and Comparison (Pros, Cons, and Applications) 3.1 Omnidirectional Antennas 3.2 Directional Antennas 3.3 Combo/Integrated Antennas 3

Table of Contents Industrial Router Installation and Initial Setup 1.1 Installation Preparation 1.2 Initial Configuration Common Issues and Troubleshooting 2.1 Power and Hardware Issues 2.2 Weak or Unstable Signal 2.3 Connection Interruptions or No Internet 2.4 Performance Degradation or Reboots 2.5 VPN or Protocol Conversion Failure 2.6 Configuration and Access Issues 2.7 Compatibility and Integration Issues 3. Tool Usage Details 3.1 Network Sniffer 3.2 Log Analysis 3.3 Diag