Robert J Swindle

US Patent:

54851424, Jan 16, 1996

Filed:

Apr 8, 1994

Appl. No.:

8/223481

Inventors:

Robert A. Stute - Orlando FL
F. Houston Galloway - Cocoa FL
Pedro J. Medelius - Merritt Island FL
Robert W. Swindle - Orlando FL
Tracy A. Bierman - Mims FL

Assignee:

The United States of America as represented by the Administrator of the
National Aeronautics and Space Administration - Washington DC

International Classification:

G08B 2900

US Classification:

340506

Abstract:

A remote monitor alarm system monitors discrete alarm and analog power supply voltage conditions at remotely located communications terminal equipment. A central monitoring unit (CMU) is connected via serial data links to each of a plurality of remote terminal units (RTUs) that monitor the alarm and power supply conditions of the remote terminal equipment. Each RTU can monitor and store condition information of both discrete alarm points and analog power supply voltage points in its associated communications terminal equipment. The stored alarm information is periodically transmitted to the CMU in response to sequential polling of the RTUs. The number of monitored alarm inputs and permissible voltage ranges for the analog inputs can be remotely configured at the CMU and downloaded into programmable memory at each RTU. The CMU includes a video display, a hard disk memory, a line printer and an audio alarm for communicating and storing the alarm information received from each RTU.