Conexant Systems introduced a family of integrated VDSL2 customer premises equipment (CPE) and central office (Co) system-on-chip (SoC) solutions.
The new SoC family has been optimized for triple-play services ranging from VDSL2 voice-enabled CPE gateways to basic bridges. The SoCs feature a flexible architecture that supports all VDSL2 profiles up to "30a" for applications requiring 100/100 Mbps operation, an integrated voice-over-IP engine, and a network processor. The chipsets also include advanced CPE technology that significantly improves VDSL performance by reducing interference on the copper lines.
Significantly, Conexant said its second-generation Accelity-2 chipset delivers downstream speeds beyond 140 Mbps. Accelity-2 features a VDSL bonding capability that allows service providers to deliver IPTV services to a wider subscriber base, and expand their revenue-generating potential. Bonding increases bandwidth capacity and extends reach by enabling the transmission of data over two lines instead of a single channel. Additional advanced features include support for key data interfaces including SMII and POS-PHY that are required for high-speed, non-blocking throughput in fiber-based triple-play service deployments VDSL2/ADSL convergence is supported on a per port basis compatible with all data interfaces and high-speed aggregation devices.
Alcatel-Lucent has selected Accelity-2 for its ETSI (European Telecommunications Standards Institute) DSL products for deployments in Europe and elsewhere. The company has also secured North American and Asian design-wins with Calix, Huawei, NEC, Schmid Telecom, and ZTE.
Key features of the new VDSL2 CPE chips include:
- An integrated hardware accelerator engine that enables up to one Gbps data throughput.
- A dedicated voice digital signal processor (DSP) to support two simultaneous VoIP channels.
- A flexible DSP architecture available in 30MHz or 17MHz bandwidth and two-pair bonded configurations enabling cost-optimized products for fiber-to-the-building (FTTB), fiber-to-the-node (FTTN), and CO deployments.
- Full backward-compatibility with ADSL/2/2plus applications to enable highly interoperable ADSL/2/2plus fallback capabilities.
