20. Define SOH, LOH and POH.
21. Define VT.
22. Explain the four types of VT.
23. Explain the SONET multiplexing.
24. Write short notes on ADM and DCS.
25. List the popular topologies of SONET and compare them with neat diagrams.
26. What are the major advantages of ring network.
28. How the SDH format differs from SONET ?
29. How the higher STM frames can be derived.
30. Tabulate the comparison of STS and STM rates.
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You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.