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: R.81 (11/88) |
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| R.81�:�Maximum acceptable limit for the duration of interruption of telegraph channels arising from failure of the normal power supplies
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Recommendation R.81 (11/88)
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Approved in 1988-11-25
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Status : In force
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Access : Freely available items
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Format |
Size |
Posted |
Article Number |
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| English |
 PDF (acrobat)
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47494 bytes |
1990-04-19 |
E�15313� |
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| Espa�ol |
PDF (acrobat)
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53134 bytes |
1990-04-19 |
S�15313� |
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| Fran�ais |
PDF (acrobat)
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53522 bytes |
1990-04-19 |
F�15313� |
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Word 