39results about How to "Reduce maintenance cost" patented technology

A system and method of powering a fiber optic communication network are provided which transmits communication data between a telephone company central office and remote user device. The system includes a power source configured to provide an electrical supply voltage to a digital subscriber line access multiplexer. The power source having an AC power feed for providing power to the digital subscriber line access multiplexer and a DC power feed for providing power to the digital subscriber line access multiplexer when the AC power feed is not supplying power. Further, an electrical conducting medium configured to conduct the electrical supply voltage and the communication data from the digital subscriber line access multiplexer to the remote user device is provided. Therefore, the present invention provides a system and method for reliably powering a fiber optic communication network with AC power under normal operating conditions and DC backup power when the AC power is interrupted, thus providing lifeline telephony service while, reducing maintenance costs by having a limited number of centralized remote power sites.

An apparatus diagnostic device includes a communication unit that communicates with a diagnosed device through a communication line, and a control unit that controls to receive a problem generation notification from the diagnosed device via the communication unit, to determine whether or not to solve a problem in accordance with apparatus status information obtained from the diagnosed device after an elapse of a prescribed period of time, and to have a notification standard of the problem generation notification changed by the diagnosed device when necessary.

Disclosed herein is a hose fastening clamp used to hold hoses that are connected by various pipe connectors in such a way as to be butted to each other, in addition to maintaining airtightness. The hose fastening clamp prevents an outer covering of a hose that is in contact with a band from being pushed in the rotating direction of the band, and increases a clamping force using the band fastened to the hose. The hose fastening clamp includes a band having on its outer surface a thread and forming an open ring that surrounds a hose. A fastening screw engages with the thread to adjust the diameter of the open ring. A clamping member is placed to be in contact with the inner surface of the band. The diameter of the clamping member is changed in conjunction with a change in diameter of the open ring.