Dealing with the Physical – Chapter 10


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Dealing with the Physical – Chapter 10

  1. 1. Dealing with the Physical – Chapter 10 Dr. Lauren B. Eder CIS 400 – Spring 2004
  2. 2. Overview <ul><li>Installing physical networks </li></ul><ul><li>Diagnostics </li></ul>
  3. 3. Installing Physical Networks <ul><li>Planning the installation </li></ul><ul><li>Mapping the cables </li></ul><ul><li>The equipment room </li></ul><ul><li>Cable installation </li></ul><ul><li>Making connections </li></ul><ul><li>Labeling the cable </li></ul><ul><li>Testing the cable runs </li></ul>
  4. 4. Planning the Installation <ul><li>Structured network cabling requires a series of work areas and an equipment room. </li></ul><ul><li>A cable drop is the location where the cable comes out of the wall. </li></ul><ul><li>It is advisable to map the cable runs keeping in mind the floor plan of the building, before installing the network. </li></ul>
  5. 5. Mapping the Cables <ul><li>Raceway products are used as a preferred alternative to running cables into a wall. </li></ul><ul><li>Outlets are openings connecting cables running inside walls. </li></ul>
  6. 6. The Equipment Room <ul><li>The factors considered in deciding the location for the equipment are: </li></ul><ul><ul><ul><li>Distance </li></ul></ul></ul><ul><ul><ul><li>Power </li></ul></ul></ul><ul><ul><ul><li>Low humidity </li></ul></ul></ul><ul><ul><ul><li>Cool environment </li></ul></ul></ul><ul><ul><ul><li>Access </li></ul></ul></ul><ul><ul><ul><li>Expandability </li></ul></ul></ul>
  7. 7. Cable Installation <ul><li>It involves extending a cable from the equipment room to the user’s desk. </li></ul><ul><li>Telescoping poles, pull strings, and crossbows are used for pulling cables. </li></ul><ul><li>Hooks and trays are used for better cable management, safety, and protection from ESD. </li></ul>
  8. 8. Making Connections <ul><li>Connecting the work areas </li></ul><ul><li>Connecting the patch panels </li></ul>
  9. 9. Connecting the Work Areas <ul><li>It involves crimping jacks to the end of wire using the 110-punchdown connection. </li></ul>
  10. 10. Connecting the Patch Panels <ul><li>Cable management: </li></ul><ul><ul><li>Plastic D-rings guide the patch cables neatly along the sides and front of the patch panel. </li></ul></ul><ul><li>Organize patch panels to mirror network layout physically or logically. </li></ul>
  11. 11. Labeling the Cable <ul><li>Labeling and documenting the cable installation reduces problems during network repair. </li></ul><ul><li>Label on the outlet should match with that of the patch panel. </li></ul>
  12. 12. Testing the Cable Runs <ul><li>Verify that each jack has been properly connected. </li></ul><ul><li>Check whether the cable can handle the speed of the network. </li></ul><ul><li>Cable testers can be used for checking the cable length, broken ends, or interference depending on its type. </li></ul>
  13. 13. Testing the Cable Runs <ul><li>Continuity testers are used for checking connectivity between cables. </li></ul><ul><li>Time Domain Reflectometers (TDR) are used for determining cable length. </li></ul><ul><li>Protocol analyzers are used for checking IP address, MAC address, and IPX address. </li></ul>
  14. 14. Diagnostics <ul><li>Synopsis </li></ul><ul><li>Toners </li></ul>
  15. 15. Synopsis <ul><li>Double-check the Network Interface Card (NIC) driver. </li></ul><ul><li>Check for cable problems and NIC link lights. </li></ul><ul><li>Check for defective patch cables. </li></ul><ul><li>Check for problems with user logon name and password. </li></ul><ul><li>Check for cable continuity from the PC to the equipment. </li></ul>
  16. 16. Toners <ul><li>They are devices used for tracing cables. </li></ul><ul><li>They are comprised of two separate devices - the tone generator and the tone probe. </li></ul><ul><li>The tone generator sends an electrical signal down the wire, and tone probe emits a sound when placed near the cable to which tone generator is connected. </li></ul><ul><li>Advanced toners provide phone jack for communication. </li></ul>
  17. 17. Summary <ul><li>Installing a structured cabling system involves three discrete steps: planning, pulling the cable, and connecting. </li></ul><ul><li>Planning involves placement and connection of components on the network. </li></ul>
  18. 18. Summary <ul><li>Connecting cables requires crimping, connecting jacks, and testing for continuity. </li></ul><ul><li>Cable connection involves cable management, labeling, and testing. </li></ul>