1. Jim Van Dyke Network Engineering & Technology Section The UCAR Physical Network Infrastructure or Why Bother to Do It Right? Presented By: James R. Van Dyke

2. Jim Van Dyke Network Engineering & Technology Section Presentation Topics What is a Structured Cabling System? Limitations of Cable Terms Topology Types Standards NCAR’s model of the System NCAR Site Structures Conclusion

3. Jim Van Dyke Network Engineering & Technology Section What is a Structured Cabling System? Standards Based Controlled & Organized Documented Fully Tested Specific Topology

4. Jim Van Dyke Network Engineering & Technology Section Terms Used Telecommunications Closet (TC) Telecommunications Outlet (TO) Main Cross-connect (MC) Intermediate Cross-connect (IC)

5. Jim Van Dyke Network Engineering & Technology Section

6. Jim Van Dyke Network Engineering & Technology Section Limitations of Cable Why is fiber cable used as the backbone cable? Copper cable has a shorter distance limitation than optical fiber In a structured system, a single fiber connection can span multiple locations

7. Jim Van Dyke Network Engineering & Technology Section Ring Topology Redundant Paths Longer paths to nodes Locks-in style of topology

8. Jim Van Dyke Network Engineering & Technology Section Star Topology Hierarchical Can centralize to one point Can emulate a ring

9. Jim Van Dyke Network Engineering & Technology Section Structure of the Star Main Cross-connect Intermediate Cross-connect Telecommunications Closet Telecommunications Outlet

10. Jim Van Dyke Network Engineering & Technology Section

11. Jim Van Dyke Network Engineering & Technology Section Standards All use star Topology as preferred method Specifies cable limitations for cable types Twisted Pair Fiber Some Standards Bodies EIA/TIA 568 BICSI

12. Jim Van Dyke Network Engineering & Technology Section NCAR’s Model of the System

13. Jim Van Dyke Network Engineering & Technology Section ML Site Structure

14. Jim Van Dyke Network Engineering & Technology Section FL Complex Site Structure

15. Jim Van Dyke Network Engineering & Technology Section JEFFCO Site Structure

16. Jim Van Dyke Network Engineering & Technology Section Current Media Installed to T.O.’s Two Category 3 Cables - Telephone Four Category 5 Cables - Data 100Mbps Two Pair Fiber Cable - Extended distance, ATM

17. Jim Van Dyke Network Engineering & Technology Section Older T.O. Installed Media Two 3-pair Cables - Telephone Two 3-pair Cables - Data - Retrofitted to support 10Base-T Two pair fiber Cable - Unterminated, special use

18. Jim Van Dyke Network Engineering & Technology Section Conclusion NCARs structured cabling system allows the following: Concentration of equipment at central locations Flexibility to adapt to changing connection types High speed available with the use of fiber Special direct connections can be installed with minimal work