Siemens Information & Communication Networks, Inc.

Siemens Business Communication Systems, Inc.

James M Worsham

William Joseph Beyda

Paul Bonomo

Ronald Robert Carleton

Matthew T Hannigan

Alan E Reynaud

Wiliam J Beyda

Franz Gisin

John W Kerr, Jr

Tad Kuwano

Robin Spires

Randy Han

Joe Nielson

A system and method for intelligent and reliable booting of a PBX-supporting computer includes a system bus coupled to at least one central processor. Multiple booting devices are connected to the system bus including a hard disk drive, a removable media device, and at least one of RAM, NVRAM, and FLASHROM. Multiple monitoring devices are connected to the system bus to provide reliability data regarding each of the booting devices. A hierarchy of the booting devices is established, the order of which, in the absence of any system errors, is RAM, one of NVRAM and FLASHROM, the hard disk drive, and the removable media device. A power fail sensor detects power failures which have affected the system, and provides data regarding the reliability of RAM and the hard disk drive. A watchdog timer sensor detects errors in the operation of a central processor, and a memory status sensor detects memory checksum errors. Both the watchdog timer sensor and the memory status sensor provide reliability data regarding RAM, NVRAM and FLASHROM. A removable media error sensor provides reliability data regarding the removable media device. Based upon the data provided by the monitoring devices, the system selects the most reliable booting device from which to load an operating system program in to the main memory.

System and method for intelligent and reliable booting

A power management system for providing power to a main system, such as a telecommunications device, includes a number of modules that are joined by module-to-module interfaces that achieve a common EMC containment barrier. In one embodiment, a battery module defines a first EMC compartment that houses one or more backup batteries, a battery management module defines a second EMC compartment that includes circuitry such as recharging circuitry, and a power entry module includes a third EMC compartment. The power entry module has an input/output connection to the battery management module and has an AC input. An output cable extends from the power entry module to the main system. Compliant metallic module-to-module gaskets preserve EMC integrity at cable pass-throughs from the battery management module to the battery and power entry modules. The modules are mounted to a system housing in a manner that secures the modules in a desired relationship.

Modular power management system with common EMC barrier

Growing community of inventors

Campbell, CA, United States of America

James M Worsham