Ellett Valley Group Designs the 4500 Series User-Configurable DOCSIS Return Path Modules

Blacksburg, VA, February 23, 2009 --(PR.com)-- The new 4500 Series DOCSIS Digital Return System addresses today’s system demands for flexible configuration of optical transmission wavelengths as well as remote monitoring and control. Designed to operate with existing RF return paths, the 5-65MHz analog bandwidth allows the DOCSIS return system to be used worldwide. The modules can be configured as transceivers to make full use of the Small Form-factor Pluggable (SFP) payload capacity or as a unidirectional product. The basic design can be easily modified to include 10/100Mbps Ethernet and control or status monitoring information.

Ready for immediate licensing, the fully developed design interconnects directly with existing DOCSIS return path signals; each board digitally multiplexes two (2) return paths, a 10/100Mbps Ethernet connection and two (2) 1Mbps asynchronous control/monitoring signals. The boards are suitable for use in all industry standard enclosures, including stand-alone housings, any rack-mount configuration or indoor/outdoor enclosures. This greatly reduces engineering time and overhead, and speeds the product’s time-to-market.

Able to meet today’s DOCSIS return path applications, the design also allows the units to be upgraded easily, using SFP modules, allowing the units to be used with future DOCSIS applications. The use of SFP modules dramatically reduces the cost of the optical components involved and allows maximum flexibility as SFP modules are readily available in wavelengths from 850nm multimode modules to ITU Grid spaced DWDM modules. These modules are field installable so that wavelengths are easily changed as the need arises. Use of a proprietary digital gain control algorithm extends the RF input dynamic range to the 4500 series by 10dB.

About The Ellett Valley Group
The Ellett Valley Group, LLC is an engineering business that is grounded in solid skills and experience. Located in the beautiful Blue Ridge Mountains of southwestern Virginia, EVG is run by Robert F. Martin, Chief Design Engineer, (Virginia Tech, BS, MS Electrical Engineering). Robert Martin has been designing fiber optic hardware for private industry, military, and government applications for more than 20 years. He has a reputation for meeting aggressive deadlines with creative, cost-saving designs that allow for efficient product migration. His products have been used in videoconferencing, cable, and satellite communications for terrestrial, space, and oceanic environments.

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