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1. |
Record Nr. |
UNINA990001710980403321 |
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Autore |
Usuelli, Filippo |
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Titolo |
Del genotipo e degli inerenti problemi di zootecnia generale : parte prima del corso di zootecnia generale / Filippo Usuelli |
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Pubbl/distr/stampa |
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Milano : Istituto editoriale cisalpino, [19..] |
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Descrizione fisica |
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Disciplina |
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Locazione |
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Collocazione |
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636-68 |
V C 9 |
60 636.082 B 1 |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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2. |
Record Nr. |
UNISA996279862403316 |
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Titolo |
ANSI/IEEE Std 1051-1988 : IEEE Recommended Practice for Parameters to Characterize Digital Loop Performance / / Institute of Electrical and Electronics Engineers |
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Pubbl/distr/stampa |
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New York, NY, USA : , : IEEE, , 1988 |
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ISBN |
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Descrizione fisica |
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1 online resource (12 pages) : illustrations |
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Disciplina |
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Soggetti |
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Digital electronics |
Electric apparatus and appliances - Testing |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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The purpose of this recommended practice is to suggest a set of transmission performance parameters to be used in the development of standards for low bit-rate digital channels between the user's location and an appropriate test point at the serving office. This recommended practice suggests a set of performance parameters for digital loop transmission between the user location and the serving office. In the case of ISDN the user location is defined as the T-reference point, or the U-reference point. In the case of non-ISDN, the user location is defined as the point in the transmission circuit analogous to the ISDN-defined T or U reference point. This recommended practice is limited to user information bit rates of 200 kb/s or lower. |
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