Cisco 12000 Series 1-Port Channelized OC-12 STM-4 Line Card

Internet traffic continues to grow at an explosive rate with the number of users doubling each year. This unsurpassed growth is increasing the demand for higher capacity interfaces from OC3/STM1 to OC48/STM16. In addition, Packet-Over-SONET/SDH (POS) enables efficient transport of IP traffic and uses SONET/SDH concatenated payloads (i.e. STS-3c/VC-4, STS-12c/VC-4-4c or STS-48c/VC-4-16c) to achieve a higher order of statistical multiplexing. At present, concatenated services at VC-4 rates are only available in some parts of the world (for example Europe), with higher rates not yet readily available. The Cisco 12000 Series 1-Port Channelized OC-12/STM-4 (OC-3/STM-1) Line Card provides customers in these areas with an STM-4 POS interface which can be provisioned through the legacy network.

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