Ericsson’s MD110 business communication system delivers a new architecture to support new ways of working for an increasingly mobile work force. The MD110 is a converged PBX system, offering powerful solutions for today and tomorrow’s networks. This unique system combines Ericsson’s  world-leading expertise in switching, networks and mobile communications to deliver the benefits that users demand.

 The Converged PBX
Based on a modular and distributed architecture, the MD110 provides the foundation for a network that supports voice, data and multimedia applications. Because of its distributed architecture, the MD110 provides a high degree of fault tolerance and excellent scalability, from up to 20,000 or more  users in an office, campus or enterprise environment.
 

        

    System structure and configuration

• The MD110 All-Contained Module can be configured  as a stand-alone main business switch for small to medium-sized companies with high performance or high-density   requirements. Open for future integration with a larger system configuration.

• as a branch node in a larger system, using networking based on Q-SIG plus VPN, ISDN call-by-call or D-over-B-signaling.

• as a campus node or building hub, fully integrated with the MD110, providing 100 percent feature transparency.

The cornerstone of the MD110 is its distributed architecture. The system architecture is built around elf-contained
modules, which can be interconnected to create systems for more than 20,000 extensions. The major basic module of the MD110 is the Line Interface Module, LIM. Each LIM is totally self-supporting since it is equipped with its own processor, software and switching and device units, such as extensions and  trunks. An MD110 system can consist of one LIM in a stand-alone configuration or several interconnected LIMs.
The MD110 operates with fully distributed processing power and all the LIMs have the same software. The LIMs cooperate on an equal basis and form a single, fully integrated system.
 

  
1 The stand-alone configuration includes interface boards for S&NM and a hard-disk unit for  software back-up.