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The MMR Optical Distribution System - Brings Coverage and Capacity to Areas Where Standard Base Stations Are Difficult to Deploy


Monday, March 22, 2004 by CommScope

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Flexible, Intelligent, Self-Optimizing System Works Indoors or Outdoors in Urban or Rural Areas

Orland Park, Illinois... 22 March 2004. Andrew Corporation introduces the MMR enhanced multiband, multi-operation optical distribution system. The unit may be configured to fit the coverage and capacity requirements of any venue from the dense urban core to the suburban neighborhood or the rural highway. If site acquisition and zoning make it difficult to deploy a standard base station, the MMR product line is the solution.

The MMR is Andrew’s continuation of its outdoor-capable optical distribution system. It offers automatic set up, including link loss compensation, and a host of set up, optimization, and quality measurements. Its unique form factor is smaller than a wooden fencepost yet has the output power of a microcell or macrocell. It is designed to fit inside or on a lamppost, along the side of a building, or on a tower with minimal aesthetic and loading impact.

The new MMR RF-over-fiber system has a wireless LAN integration feature, comprehensive monitoring system, and multiple power options for greater system flexibility. It transports several frequency bands and multiple modulation formats simultaneously over a single fiber using WDM (wave division multiplexing). It may be used as a dedicated, single operator system and may also be shared between multiple operators.

“Our MMR system transports all frequencies and technologies simultaneously without degradation. It is future-proof and provides a costless, simple migration path from legacy first generation systems through today’s third generation systems,” said Michael Spachtholz, Vice President, Operations, Wireless Innovations Group, Andrew Corporation. “These units have been deployed in some of the most difficult zoning environments in existence. They are simple to install and maintain and represent an ideal solution for today and tomorrow in all environments.”

The MMR system has two main components and many different ancillary options. A master unit connects to a base station and transports RF signals over a single mode fiber. The remote units may be connected to the master in either a daisy chain or star configuration with the WDM standard to minimize fiber. Up to 128 remote units may be connected to a single master unit located up to 20 miles away. The master unit is connected to an Andrew or third party OMC via SNMP where complete control and alarming is maintained.