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Standard ČSN ETS 300451-ed.1 1.2.1997 preview

ČSN ETS 300451-ed.1 (871521)

Business TeleCommunications (BTC). Ordinary quality voice bandwidth 4-wire analogue leased line (A4O). Connection characteristics and network interface presentation



STANDARD published on 1.2.1997


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1.40 USD

The information about the standard:

Designation standards: ČSN ETS 300451-ed.1
Classification mark: 871521
Catalog number: 21364
Publication date standards: 1.2.1997
SKU: NS-171541
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

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Latest update: 2025-12-01 (Number of items: 2 249 634)
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