Automated Performance Monitoring and Assessment for DCS Digital Systems
Abstract
As an aid evaluating technical control techniques, an emulation facility that automatically performs the status monitoring, performance assessment, and fault isolation transmission control functions as they apply to the digital Defense Communications System (DCS) has been developed. This emulation facility is a multicomputer system which automatically monitors and isolates faults for digital transmission equipments. The status monitoring and performance assessment functions are performed by two processors, the Adaptive Channel Estimator (ACE) and an LSI 11/03, the composite being referred to as the CPMAS-D unit. When the software residing in the CPMAS-D unit detects a monitor point transition, it transmits the monitor point information to the CPMAS emulator, a PDP 11/60 minicomputer. These messages, called exception reports, enable the CPMAS Emulator to perform its prime mission: fault isolation. A unique fault isolation algorithm has been developed for test with this emulation facility. The algorithm consists of three discrete steps. First, the equipment alarms are mapped into their effect upon each transmission path (link, supergroup, group, or channel). Second, the stations with the faulty equipment are located by deleting the impact of sympathetic alarms. Third, the faulty equipment is identified using the equipment alarm status. Testing of the fault isolation algorithm is enhanced by an emulated network consisting of up to 16 stations, 2048 equipments, and two nodal control areas. Monitor point simulators and T1-4000 multiplexers, which provide simulated and real time inputs to two CPMAS-D units, are also part of the emulation facility.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1980
- Accession Number
- ADA090318
Entities
People
- Brian D. Chace
- George G. Wilson
- Louis E. Jankauskas
- Michael Mizesko
- Warren J. Falzone
Organizations
- Sylvania Electric Products