Multiplexed Fiber Optic

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RF Path Design Basics • Determine operating frequency • Bandwidth needed • Distance covered • Licensed vs. unlicensed • Determine free space loss (FSL) Site Transceiver 1 Site Transceiver 2 FSL = 36.6 + 20logF + 20logD F= Frequency in MHz D = Distance in Miles RF Path Design Basics Determine Fresnel Zone Clearance • Obstructions • Earth curvature Total Distance Fresnal Zone Earth Curvature 24
RF Path Design Basics Other Parameters to Consider • Effective isotropic gain TX antenna gain + TX power input • System operating margin (fade margin) RX signal level – RX sensitivity • Multipath interference • Signal-to-noise ratio • Temperature inversions • Temporary obstructions Implementing IEC 61850 • Benefits of applying IEC 61850 • Building reliability into design • Operational concerns • Maintenance concerns 25
Page 4: • Immune to electrical interferen
Page 7: Transport Layer Benefits TDM / SONE
Page 14 and 15: Circuit Performance Sensitivities P
Page 16: Paradigm Differences: Security and
Page 20 and 21: But Isn’t SONET Obsolete? • SON
Page 22 and 23: RF Link Types • Point to point R1
Page 26 and 27: What Is IEC 61850? Object-oriented,
Page 28 and 29: Complete SEL Networking Solution fo
Page 30 and 31: Ethernet Network Performance Priori
Page 32 and 33: Securing Critical Infrastructure An
Page 34 and 35: What Is an Authentication Proxy? Us
Page 36 and 37: Reliable, Economical, Safe • No s
Page 38 and 39: SEL-2730M Managed Ethernet Switch
Page 40 and 41: Security Features Disable unused Et
Page 42 and 43: SEL-3610 Application Outside World
Page 44 and 45: Electronic Security Perimeter • P
Page 46 and 47: SEL Tools • Disclosure process
Page 48 and 49: Summary 48

Multiplexed Fiber Optic

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