standards and guidelines for communication sites - Radio And ...
standards and guidelines for communication sites - Radio And ... standards and guidelines for communication sites - Radio And ...
6.9 Generator Output and Derating Considerations ....................................................................... 6-36 6.9.1 Generator Placement .......................................................................................................6-37 6.9.2 Fuel Supply ...................................................................................................................... 6-38 6.9.3 Transfer Switch ................................................................................................................ 6-40 6.9.4 Electrical Wiring Considerations ....................................................................................... 6-40 6.9.5 Installation Plan ................................................................................................................ 6-40 6.9.6 Alarms, Meters and Gauges ............................................................................................. 6-41 6.9.7 Generator Installation Grounding ..................................................................................... 6-42 6.9.8 Generator Installation ....................................................................................................... 6-42 6.9.9 Generator Startup ............................................................................................................. 6-43 6.9.10 Generator Safety ............................................................................................................ 6-43 Chapter 7. Surge Protective Devices ............................................................ 7-1 7.1 Introduction ................................................................................................................................. 7-1 7.2 Technologies Available ............................................................................................................... 7-4 7.3 Suppression Mode Definitions .................................................................................................... 7-4 7.4 AC Power SPD Requirements .................................................................................................... 7-5 7.4.1 AC SPD Requirements Based on Facility Description ....................................................... 7-5 7.4.2 SPD Types ....................................................................................................................... 7-27 7.4.3 Installation Requirements .................................................................................................7-33 7.5 Telephone/Control/Data Network Circuit SPDs ........................................................................ 7-34 7.5.1 Primary Protection ............................................................................................................ 7-35 7.5.2 Secondary Protection ....................................................................................................... 7-35 7.5.3 Fiber Optic Cables ............................................................................................................ 7-36 7.6 RF Components Protection ...................................................................................................... 7-36 7.6.1 RF Surge Suppression Technology Overview ................................................................. 7-37 7.6.2 Surge Protection Considerations for Dispatch Centers and Operator Positions .............. 7-43 7.6.3 Cable Television and Security Systems ........................................................................... 7-44 7.6.4 Broadband - Wireless Access Point Networks ................................................................. 7-44 7.7 GPS Receiver Protection .......................................................................................................... 7-44 7.8 Tower Lighting Protection ......................................................................................................... 7-45 7.9 Battery Powered Protection ...................................................................................................... 7-47 7.10 AC Power Line SPD Test Certification Requirements ............................................................ 7-47 7.10.1 Test Methods .................................................................................................................. 7-48 7.10.2 Component Level Surge Test ......................................................................................... 7-48 7.10.3 Impulse Surge Durability Test Requirements ................................................................. 7-49 7.10.4 Maximum Discharge Current Test .................................................................................. 7-50 VI 68P81089E50-B 9/1/05
STANDARDS AND GUIDELINES FOR COMMUNICATION SITES Chapter 8. Minimizing Site Interference ........................................................ 8-1 8.1 Interference Protection Recommendations .................................................................................8-1 8.1.1 Minimum Transmitter Protection Requirements .................................................................8-2 8.1.2 Minimum Receiver Protection Requirement .......................................................................8-3 8.2 General Site Environmental Requirements .................................................................................8-3 8.3 Other Band Architecture—Overview ...........................................................................................8-4 8.3.1 Spectrum Usage History .....................................................................................................8-4 8.3.2 Forms of Interference .........................................................................................................8-4 8.3.3 OBA Interference Mitigation ...............................................................................................8-5 8.3.4 Antenna Network Components ...........................................................................................8-7 8.3.5 Optimization and Testing ....................................................................................................8-8 8.3.6 Maintenance .......................................................................................................................8-8 8.4 Mitigating External Intermodulation and Transmitter Noise / Receiver Desense Interference ....8-8 8.4.1 Intermodulation ...................................................................................................................8-9 8.4.2 Transmitter Noise/Receiver Desense .................................................................................8-9 8.4.3 Simplex Multi-Frequency Stations ....................................................................................8-10 Chapter 9. Equipment Installation ................................................................. 9-1 9.1 Introduction .................................................................................................................................9-1 9.2 Facility Readiness .......................................................................................................................9-1 9.3 General Considerations for Layout, Work Areas, and Spacing ..................................................9-2 9.3.1 Spacing Requirements .......................................................................................................9-2 9.4 Seismic Considerations ..............................................................................................................9-3 9.4.1 General Recommendations ................................................................................................9-3 9.5 Equipment Mounting Plumb and Squareness .............................................................................9-5 9.6 Equipment Anchoring ..................................................................................................................9-5 9.6.1 Mounting on Concrete Floors .............................................................................................9-6 9.6.2 Mounting On Wood or Fiberglass Floors ............................................................................9-8 9.6.3 Anchoring Equipment to Raised Floors ..............................................................................9-9 9.6.4 Anchoring Overhead and Wall-mounted Equipment ..........................................................9-9 9.7 Equipment Installation Within Racks or Cabinets .....................................................................9-10 9.8 Ancillary Equipment Mounting ..................................................................................................9-10 9.9 Equipment Cabling ....................................................................................................................9-11 9.9.1 Cabling Requirements for Equipment in Racks and Cabinets ..........................................9-11 9.9.2 Communication Cabling Requirements for Plenums and Other Air-Handling Spaces .....9-12 9.9.3 Cabling Requirements for Cable Trays or Ladders ..........................................................9-14 9.9.4 AC Power Cabling ............................................................................................................9-16 9.9.5 DC Power Cabling ............................................................................................................9-17 9.9.6 Computer Network Cabling ..............................................................................................9-18 9.9.7 Optical Fiber Cabling ........................................................................................................9-26 9.9.8 RF Cabling ........................................................................................................................9-28 9.9.9 Cabling in Telephone Wiring Environments .....................................................................9-28 9.9.10 Distribution Frame Configurations ..................................................................................9-29 9.9.11 Distribution Frame Cross-Connect Wiring ......................................................................9-30 9.9.12 Cable Labeling ................................................................................................................9-30 9.10 Electrostatic Discharge Considerations ..................................................................................9-31 68P81089E50-B 9/1/05 VII
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STANDARDS AND GUIDELINES FOR COMMUNICATION SITES<br />
Chapter 8. Minimizing Site Interference ........................................................ 8-1<br />
8.1 Interference Protection Recommendations .................................................................................8-1<br />
8.1.1 Minimum Transmitter Protection Requirements .................................................................8-2<br />
8.1.2 Minimum Receiver Protection Requirement .......................................................................8-3<br />
8.2 General Site Environmental Requirements .................................................................................8-3<br />
8.3 Other B<strong>and</strong> Architecture—Overview ...........................................................................................8-4<br />
8.3.1 Spectrum Usage History .....................................................................................................8-4<br />
8.3.2 Forms of Interference .........................................................................................................8-4<br />
8.3.3 OBA Interference Mitigation ...............................................................................................8-5<br />
8.3.4 Antenna Network Components ...........................................................................................8-7<br />
8.3.5 Optimization <strong>and</strong> Testing ....................................................................................................8-8<br />
8.3.6 Maintenance .......................................................................................................................8-8<br />
8.4 Mitigating External Intermodulation <strong>and</strong> Transmitter Noise / Receiver Desense Interference ....8-8<br />
8.4.1 Intermodulation ...................................................................................................................8-9<br />
8.4.2 Transmitter Noise/Receiver Desense .................................................................................8-9<br />
8.4.3 Simplex Multi-Frequency Stations ....................................................................................8-10<br />
Chapter 9. Equipment Installation ................................................................. 9-1<br />
9.1 Introduction .................................................................................................................................9-1<br />
9.2 Facility Readiness .......................................................................................................................9-1<br />
9.3 General Considerations <strong>for</strong> Layout, Work Areas, <strong>and</strong> Spacing ..................................................9-2<br />
9.3.1 Spacing Requirements .......................................................................................................9-2<br />
9.4 Seismic Considerations ..............................................................................................................9-3<br />
9.4.1 General Recommendations ................................................................................................9-3<br />
9.5 Equipment Mounting Plumb <strong>and</strong> Squareness .............................................................................9-5<br />
9.6 Equipment Anchoring ..................................................................................................................9-5<br />
9.6.1 Mounting on Concrete Floors .............................................................................................9-6<br />
9.6.2 Mounting On Wood or Fiberglass Floors ............................................................................9-8<br />
9.6.3 Anchoring Equipment to Raised Floors ..............................................................................9-9<br />
9.6.4 Anchoring Overhead <strong>and</strong> Wall-mounted Equipment ..........................................................9-9<br />
9.7 Equipment Installation Within Racks or Cabinets .....................................................................9-10<br />
9.8 Ancillary Equipment Mounting ..................................................................................................9-10<br />
9.9 Equipment Cabling ....................................................................................................................9-11<br />
9.9.1 Cabling Requirements <strong>for</strong> Equipment in Racks <strong>and</strong> Cabinets ..........................................9-11<br />
9.9.2 Communication Cabling Requirements <strong>for</strong> Plenums <strong>and</strong> Other Air-H<strong>and</strong>ling Spaces .....9-12<br />
9.9.3 Cabling Requirements <strong>for</strong> Cable Trays or Ladders ..........................................................9-14<br />
9.9.4 AC Power Cabling ............................................................................................................9-16<br />
9.9.5 DC Power Cabling ............................................................................................................9-17<br />
9.9.6 Computer Network Cabling ..............................................................................................9-18<br />
9.9.7 Optical Fiber Cabling ........................................................................................................9-26<br />
9.9.8 RF Cabling ........................................................................................................................9-28<br />
9.9.9 Cabling in Telephone Wiring Environments .....................................................................9-28<br />
9.9.10 Distribution Frame Configurations ..................................................................................9-29<br />
9.9.11 Distribution Frame Cross-Connect Wiring ......................................................................9-30<br />
9.9.12 Cable Labeling ................................................................................................................9-30<br />
9.10 Electrostatic Discharge Considerations ..................................................................................9-31<br />
68P81089E50-B 9/1/05 VII
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