Ciena’s Virtual Container over Packet Transceivers enable cost-effective transport of T3 (DS3), OC-3/STM-1, and OC-12/STM-4 signals over Ethernet. With many network operators transforming their networks to all-packet transport, TDM over packet emerges as a key enabler to efficiently migrate legacy services to the new packet-based infrastructure. Using a single unified network for both data and TDM transport can streamline operations and reduce capital and operational expenditures.
The Small Form-factor Pluggable (SFP) modules convert a data stream from its user SONET/SDH port into circuit-emulated packets for transmission over a Packet Switched Network (PSN). One is capable of OC-3/STM-1 rates (155 Mb/s) while the other adds OC-12/STM-4 signal rates (up to 622 Mb/s). Packets are transmitted via a 1 Gigabit Ethernet (GbE) port on the host device through one or more PSNs (in the case of multiple operators, for example). At the remote end, packets are converted back to TDM traffic for handoff as TDM services.
The SFP module converts a data stream from its user T3 port into circuit-emulated packets for transmission over a Packet Switched Network (PSN). Packets are transmitted via a 1 Gigabit Ethernet (GbE) port on the host device through one or more PSNs (in the case of multiple operators, for example). At the remote end, packets are converted back to TDM traffic for handoff as TDM services.
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