Outline: Comparison between PDH and SDH. STM-N frame structure. Multiplexing of of 140Mb/s, 34Mb/s...

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Outline : omparison between PDH and SDH. TM-N frame structure. ultiplexing of of 140Mb/s, 34Mb/s and ignals into STM-N frame. ommon NE of SDH network. DH network structure and network protection mechanism. anagement, monitoring and alarms.

Transcript of Outline: Comparison between PDH and SDH. STM-N frame structure. Multiplexing of of 140Mb/s, 34Mb/s...

Page 1: Outline: Comparison between PDH and SDH. STM-N frame structure. Multiplexing of of 140Mb/s, 34Mb/s and 2Mb/s signals into STM-N frame. Common NE of SDH.

Outline:• Comparison between PDH and SDH.• STM-N frame structure. • Multiplexing of of 140Mb/s, 34Mb/s and 2Mb/s signals into STM-N frame.• Common NE of SDH network.• SDH network structure and network protection mechanism.• Management, monitoring and alarms.

Page 2: Outline: Comparison between PDH and SDH. STM-N frame structure. Multiplexing of of 140Mb/s, 34Mb/s and 2Mb/s signals into STM-N frame. Common NE of SDH.

Comparison between PDH and SDHPoint of comparisonPDHSDH

Electrical & Optical

Interface

No universal

standard

universal

standard

multiplexing

method

complexsimple

Operation ,

administration

& Maintenance

Poor

administration

High

administration

CompatibilityIncompatible with other signals (ATM,

FDDI &DQDB)

compatible with other signals (ATM, FDDI

&DQDB)

BandwidthSave B.WHigh B.W

CoastLow coastHigh coast

Page 3: Outline: Comparison between PDH and SDH. STM-N frame structure. Multiplexing of of 140Mb/s, 34Mb/s and 2Mb/s signals into STM-N frame. Common NE of SDH.

Electrical interfacePDH

Page 4: Outline: Comparison between PDH and SDH. STM-N frame structure. Multiplexing of of 140Mb/s, 34Mb/s and 2Mb/s signals into STM-N frame. Common NE of SDH.

SDHElectrical interface

Page 5: Outline: Comparison between PDH and SDH. STM-N frame structure. Multiplexing of of 140Mb/s, 34Mb/s and 2Mb/s signals into STM-N frame. Common NE of SDH.

Multiplexing Method


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