Title :
Automatic line protection testing: SDH equipment with optical fibre amplifier systems
Author :
Bonanni, Paola ; Carta, Elisabetia ; Valtriani, Luca
Author_Institution :
SIRTI S.p.A., Milan, Italy
Abstract :
The most critical goal to be reached when designing long distance networks is the capability to transport high capacity signals with a limited number of repeaters. This can be accomplished by the combination of Synchronous Digital Hierarchy (SDH) technology and Optical Fibre Amplifiers (OFA). Due to the very high power levels involved in this systems, a protection method to ensure human safety in case of cable break is required; IU-T G.958 Recommendation gives an automatic shut-down procedure for SDH systems. In this paper, a shut-down time measurement methodology is proposed to test the potential compatibility of OFAs with the available SDH systems during the protection mechanism
Keywords :
automatic testing; digital communication; optical fibre communication; protection; safety systems; synchronous digital hierarchy; time measurement; IU-T G.958 Recommendation; Optical Fibre Amplifiers; SDH equipment; Synchronous Digital Hierarchy; automatic line protection testing; automatic shut-down; cable break; high capacity signals; human safety; optical fibre amplifier; repeaters; shut-down time measurement; Automatic testing; Humans; Optical fiber amplifiers; Optical fiber cables; Optical fibers; Power system protection; Repeaters; Safety; Signal design; Synchronous digital hierarchy;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1994. IMTC/94. Conference Proceedings. 10th Anniversary. Advanced Technologies in I & M., 1994 IEEE
Conference_Location :
Hamamatsu
Print_ISBN :
0-7803-1880-3
DOI :
10.1109/IMTC.1994.352156
