EPON ONU chip from Cortina Systems offers smaller BOM, decreased power requirements

Cortina Systems, Inc. has unveiled CS803x Integrated Access Platform, the fourth generation of its EPON optical network unit (ONU) chip technology. The CS803x features an embedded 500-MHz CPU and multiple integrated memory options that saves the cost of a separate memory device. It also complies with SIEPON's power saving feature and supports the new IEEE Energy Efficient Ethernet standard.

The CS803x can be used to support both single family unit IP voice and video home gateway and multi-dwelling unit applications. Its VoIP interface can support up to four instants of conversation. It is engineered through proprietary software to be backwards compatible with existing ONUs.

The device also is engineered for emerging EPON applications such as mobile backhaul. The CS803x supports 1PPS/ToD timing synchronization based on China Telecom V2.1 EPON Specification and IEEE 802.1AS.

It also can be used in smart grid applications. “With energy costs skyrocketing, everyone is looking for ways to manage their power consumption, especially power companies,” comments Li. “Cortina’s CS803x family has integrated UART, which enables utility companies to manage power grids by collecting power utilization from the power meter and sending it through the PON network to the controlling center. Power companies in China expect to save billions of dollars in efficiency by implementing this function and routing power to the critical portion of its grid more efficiently.”

The device has already won praise from at least one analyst. “The CS803x from Cortina is one of the first high‐performance EPON chips to support the IEEE’s SIEPON standard, which aims to facilitate interoperability,” said Jeff Heynen, Directing Analyst, Broadband Access, Infonetics. “The CS803x is already one of the most versatile EPON chips on the market, with applications ranging from low‐end ONT to multi‐play residential gateways. Adding SIEPON support increases its versatility by guaranteeing interoperability.”

The CS803x is sampling now, with production scheduled to begin in June 2011.

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