This document discusses outside plant technology including supporting structures, cable characteristics, underground cable, feeder and distribution cable, protection methods, and outside plant application issues. It describes the different types of supporting structures for cable including aerial, underground in conduit, and directly buried. Cable characteristics like twisted pair and sheath materials are also covered. The document outlines various protection methods for outside plant like insulating equipment, shielding cables, grounding, opening circuits, and separating power and telecom lines. Finally, it mentions considering plans for both fiber and copper cable and using flexible conduit for underground installation depending on the number of stations.

1. Outsite plant J.TC08D001 E. Uuriintsolmon J.TC08D003 Ts. Buyanbat J.TC08D706 G. Zolboo

2. 1. Outside Plant Technology 2.Protection 3.Outside Plant Application Issues

4. Cable Characteristics

5. Underground cable

7. Supporting structure Cable is classified according to its supporting structure: Aerial cable supported on pole lines Underground cable enclosed in buried conduit Buried cable placed directly in the ground

8. Cable characteristics Twisted pair cables Cable sheath materials Cable pairs

9. Old new

10. Underground cable

11. Feeder and distribution cable

14. Protection Methods

16. Zone of protection

17. Protection methods Methods: Insulating telecommunications apparatus Shielding communications cables Grounding equipment Opening affected circuits Separating electrical and telecommunications circuit

18. Insulating Telecommunications Apparatus Insulation. Satisfy electrical protection requirements Conductor of from 1000 to 4000 V

19. Shielding Communications Cables Lightning strikes A grounded shield wire buried above a communications cable Separation to prevent arcing between the shield and the cable.

20. Grounding Equipment Principle of electrical protection Simplest form protector One side of the carbon block

21. Opening Affected Circuits Method of protecting circuits and equipment The communications conductors

22. Separating Electrical and Telecommunications Circuits The minimum acceptable separation between power and telecommunications circuits . Additional measure Sharing of a joint trench

23. 3.Outside Plant Application Issues

24. Outside plant application issues Including plans for both fiber and copper cable. Depends on the number of stations. Flexible conduit can be plowed underground.

25. Conclusion Last of all Outside plant is the collection of cables, poles, conduit, and fiber optics that interconnect central offices and connect the central office to the subscribers’ premises. Wide-bandwidth signals travel across the country in ribbons of fiber-optic cable, but must be converted to analog and piped to the customer over a pair of wires that may cut off any frequency higher than 4kHz. When we prepared this presentation we learned about how outside plant is designed and constructed.

26. Reference The Irwin Handbook of Telecommunications Lecture of optic lesson www.google.com

27. Thank you for your attention!