ITU-T R 81 SPANISH-1988 MAXIMUM ACCEPTABLE LIMIT FOR THE DURATION OF INTERRUPTION OF TELEGRAPH CHANNELS ARISING FROM FAILURE OF THE NORMAL POWER SUPPLIES《由正常供电失败引起的电报频道的中断持续最大接受极限》.pdf

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ITU-T R 81 SPANISH-1988 MAXIMUM ACCEPTABLE LIMIT FOR THE DURATION OF INTERRUPTION OF TELEGRAPH CHANNELS ARISING FROM FAILURE OF THE NORMAL POWER SUPPLIES《由正常供电失败引起的电报频道的中断持续最大接受极限》.pdf_第1页
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ITU-T R 81 SPANISH-1988 MAXIMUM ACCEPTABLE LIMIT FOR THE DURATION OF INTERRUPTION OF TELEGRAPH CHANNELS ARISING FROM FAILURE OF THE NORMAL POWER SUPPLIES《由正常供电失败引起的电报频道的中断持续最大接受极限》.pdf_第2页
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ITU-T R 81 SPANISH-1988 MAXIMUM ACCEPTABLE LIMIT FOR THE DURATION OF INTERRUPTION OF TELEGRAPH CHANNELS ARISING FROM FAILURE OF THE NORMAL POWER SUPPLIES《由正常供电失败引起的电报频道的中断持续最大接受极限》.pdf_第3页
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1、UNIN INTERNACIONAL DE TELECOMUNICACIONESUIT-T R.81SECTOR DE NORMALIZACINDE LAS TELECOMUNICACIONESDE LA UITTELEGRAFATRANSMISIN TELEGRFICALMITE MXIMO ADMISIBLE DE DURAClNDE LAS INTERRUPCIONES DE LOSCANALES TELEGRFICOS DEBIDASA CORTES DEL SUMINISTRO NORMALDE ENERGARecomendacin UIT-T R.81(Extracto del L

2、ibro Azul)NOTAS1 La Recomendacin UIT-T R.81 se public en el fascculo VII.1 del Libro Azul. Este fichero es un extracto delLibro Azul. Aunque la presentacin y disposicin del texto son ligeramente diferentes de la versin del Libro Azul, elcontenido del fichero es idntico a la citada versin y los derec

3、hos de autor siguen siendo los mismos (Vase acontinuacin).2 Por razones de concisin, el trmino Administracin se utiliza en la presente Recomendacin para designar auna administracin de telecomunicaciones y a una empresa de explotacin reconocida. UIT 1988, 1993Reservados todos los derechos. No podr re

4、producirse o utilizarse la presente Recomendacin ni parte de la misma decualquier forma ni por cualquier procedimiento, electrnico o mecnico, comprendidas la fotocopia y la grabacin enmicropelcula, sin autorizacin escrita de la UIT.Fascculo VII.1 - Rec. R.81 1Recomendacin R.81Fascculo VII.1 - Rec. R

5、81LMITE MXIMO ADMISIBLE DE DURAClN DE LAS INTERRUPCIONESDE LOS CANALES TELEGRFICOS DEBIDAS A CORTESDEL SUMINISTRO NORMAL DE ENERGA(antigua Recomendacin B.40 del CCIT, 1951)El CCITT,considerandoque en las redes telegrficas con conmutacin, una interrupcin de 300 ms de la corriente telegrfica ocasiona

6、rala liberacin de conmutadores, y que los rels que controlan esta liberacin deben ajustarse de modo que funcionen conun retardo ligeramente inferior a 300 ms,recomienda por unanimidad1) que se procure evitar la interrupcin de la corriente telegrfica como consecuencia de un corte del suministronormal de energa;2) sin embargo, de no ser posible evitar una interrupcin, su duracin no debe exceder en ningn caso de150 ms.

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