Vitesse PHYs target high-density Carrier Ethernet, mobile backhaul, and enterprise networks/Nevion unveils products for all video transport protocols
AUGUST 10, 2010 — Vitesse Semiconductor Corp. (Pink Sheets: VTSS) has introduced its latest 10G Ethernet physical-layer SerDes. Designed for high-density 10G aggregation in emerging 40G/100G Ethernet backbones, mobile backhaul/transport, and enterprise networks, the VSC8488 and VSC8484 dual and quad Ethernet PHYs are the first such devices brought to market that support Synchronous Ethernet and other precision timing capabilities, along with working and protection failover capability required to meet carrier resiliency requirements, Vitesse asserts.
The VSC8488 and VSC8484 integrate numerous differentiating features, Vitesse says:
Both devices include a crosspoint switch, enabling easier design of redundant failover systems
Vitesse says its analog electronic dispersion compensation (EDC) implementation results in a total path latency of 1 ns, compared to DSP-based latencies measuring hundreds of nanoseconds, thus enabling low-latency system design
Both devices support 40GBase-KR4, 40GBase-CR4, 40GBase-CR10, nAUI, and nPPI high-speed I/O requirements, enabling systems designed today to be ready for upgrade to 40G/100G
The chips’ receiver performance and low-jitter SONET-compliant transmit path enables the user to support a broad array of module formats including all of the present XFP, SFP+, QSFP+, and CFP host applications with high system link margin.
For mobile backhaul/transport applications, the devices support Synchronous Ethernet timing, with IEEE 1588 timing support on the near-term roadmap. At the other end of the application spectrum, Vitesse says the devices offer insertion loss and crosstalk compensation capabilities well in excess of the 10GBase-KR backplane standard. The insertion loss compensation ability of 35 dB and insertion loss to crosstalk ratio (ICR) support down to 6 dB exceed KR requirements, according to Vitesse. In addition to supporting signal degradations in excess of the KR link requirements, the devices sustain full KR compliant rate auto-negotiation and link optimization.
“Across the network, from the initial access points at mobile backhaul/transport and broadband to the core, system needs demand rapid and accelerating bandwidth expansion. Additionally, the bandwidth is being added during a transition period in network implementation from SONET/TDM to Ethernet,” said Gary Paules, product marketing manager at Vitesse. “Because the VSC8488 and VSC8484 dual and quad 10G PHYs uniquely address these expansion and transition challenges, designers can accelerate development of 40G/100G Ethernet backbones, mobile backhaul/transport, and Ethernet networks by leveraging the unique capabilities of these new Vitesse devices.”
“Per our latest networking port count analysis released in April, 10G ports shipments approached 2M in calendar 2009 and cumulative 10/40/100G port shipments will grow to 35M by calendar year 2014, a 5-year CAGR of 59 percent,” said Andrew Schmitt, directing analyst, optical at Infonetics Research. “Products such as Vitesse’s multichannel 10G SerDes are well positioned to support the ongoing 10G port density ramp along with the migration to 40G and 100G implementations.”
AUGUST 19, 2010 — Nevion (formerly Network VPG), a video transport provider for broadcasters, service providers, and government entities worldwide, has announced new products designed to enhance suites for all video transport infrastructures. The new offerings in the Ventura platform are intended to advance video transport capabilities and performance for video over IP, SDH/SONET, and fiber overlay networks.
For video over IP, the enhancements to the VS908 multiplexer deliver security through AES encryption of video and privacy through IP networks via VLAN tagging, while a variable jitter buffer maintains high quality in jitter-prone, packet-based networks. The standards-compliant VS908 can function as a pair or as a single node, interoperating with other standards-compliant modules.
The new generation of Ventura VS901 JPEG 2000 codecs offers visual quality by providing higher-compressed, bit rates and support for 3G, while maintaining the lowest latency available on the market. The VS901 series also provides users with greater quality control through the ability to change luma-chroma ratios and transmit only the luma for specialized applications.
The VS901-SED-03 JPEG 2000 codec for SDH/SONET compresses SD-SDI videos at mathematically lossless rates, and HD-SDI at visually lossless rates, mapping its output onto STM-1/OC-3. It can also transport DVB/ASI signals when applied, providing flexibility in network provisioning and use. Continuing the tradition of TDM multiplexing, the VS811-SHM enables customers to use available STM-16/OC-48 bandwidth to transport eight SD-SDI signals or one HD-SDI and two SD-SDIs. Nevion’s VS731-TRX enables customers to remotely connect to IP-based management devices over a traditional video or SONET network by converting IP into ASI.
The VS551-SDI is a universal video-to-fiber adapter, which automatically recognizes and accepts input in any professional video format (digital or analog), converting and embedding analog audio or AES audio into SD-SDI. The VS252-3G-JM-SFP-SFP is a universal digital video transport system that supports 10Mbps to 3Gbps signals with jitter management and protection switching.
