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

Czech preface only -
Print design (1.30 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
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN