N-GEN Communications Web-based Seminars ©NGCS

Seminar - An Overview of Communications Technologies


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Module 5 - SONET, WDM, DWDM and B-ISDN Technologies                                                              Slide 70 of 76 _________________                                                                                  __________

                                              A DWDM System

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DWDM systems are available off-the-shelf from Nortel and Lucent Technologies. The systems allow the carriers and enterprises to add on more wavelengths as the traffic grows.