DMT Modulation – Standard Compliance and Outstanding Performance
The P-871 is a DMT (Discrete Multi-Tone)-based VDSL CPE. DMT modulation dynamically adapts the bit rate to conditions on the local loop and offers excellent performance even over noisy lines. Network administrators become free from manually testing lines and from constantly adjusting equipment to noise conditions. Both IEEE 802.3ah Ethernet in the First Mile (EFM) Task Force and IEEE T1E1.4 Working Group selected DMT as its worldwide VDSL line-coding standard.
Bandwidth of over 25 Mbps Per Port in Full Duplex
The high-bandwidth P-871 allows service providers to simultaneously deliver a variety of value-added services, such as broadband Internet access and multiple streaming video channels. With the Prestige 871, small to medium business users can have much higher bandwidth for both symmetric and asymmetric applications while home users can enjoy interactive media-rich entertainment which was previously unavailable.
Triple Play over Existing Copper Wires
With VDSL, traditional “copper wire” telecom operators may begin offering “triple play” multimedia services such as multiple high-quality digital video streams, high-speed Internet access, and voice services in a way which provides a user experience similar to today’s other existing distribution systems (cable, terrestrial, satellite). New revenue can be generated with a minimal amount of installation time and expense.
Co-existence with Plain Old Telephone Service (POTS), ISDN and Digital Phones
VDSL can be implemented quickly, even if there is only one phone line per tenant. The existing POTS or ISDN services may be kept while adding new broadband services.
Best CPE for EFM Applications
Due to Ethernet's relatively low cost, simplicity, flexibility, ubiquity and high bandwidth, there has recently been growing momentum in the use of Ethernet in access networking. Such trends in access networking make the P-871 a perfect solution for EFM applications. |
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