Apparatus for connection to private circuits run by certain public telecommunication operators.. Specification for apparatus for connection to digital circuits according to CCITT Recommendation X.21 bis.
STANDARD published on 31.12.1990
Designation standards: BS 6328-7:1990
Note: WITHDRAWN
Publication date standards: 31.12.1990
The number of pages: 13
Approximate weight : 39 g (0.09 lbs)
Country: British technical standard
Category: Technical standards BS