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DWDM

DWDM works by combining and transmitting multiple signals simultaneously at different wavelengths on the same fiber.  In effect, one fiber is transformed into multiple virtual fibers. So, if you were to multiplex eight OC-48 signals into one fiber, you would increase the carrying capacity of that fiber from 2.5Gb/s to 20 Gb/s. Currently, because of DWDM, single fibers have been able to transmit data at speeds up to 400 Gb/s.

A key advantage to DWDM is that it is protocol and bit-rate independent. DWDM based networks can transmit data in IP, ATM, Sonet/SDH, and Etherenet, and handle bit rates between 100 Mb/s and 2.5 Gb/s. Therefore, DWDM based networks can carry different types of traffic at different speeds over an optical channel.dwdm_3

From a QoS standpoint, DWDM based networks create a lower cost way to quickly respond to customers' bandwidth demands and protocol changes.

Features:

  • Fast expansion of capacity on existing routes
    • 32 channels @ 10 Gbit/s
    • 320 Gbit/s on a single fiber pair (today Max. 10 G with SDH)
  • Longer transmission distances before Regeneration
    • 80km with SDH, 600 km with DWDM
  • Will save time and cost of laying new fibers
    • Reduces equipment mountains at re-generator sites and associated build, operation and maintenance costs
  • Higher Granularity protection switching
  • Allows multiple clients to be carried directly and in parallel on the same fiber

To discuss "DWDM" with Open Access

Contact an Open Access Account Executive to help determine if OA DWDM makes sense for your business. An Open Access Network Engineer will help with overall analysis of your current network and your future needs.