Integrated Services Digital Network (ISDN). Digital Subscriber Signalling System No. one (DSS1) protocol. Data link layer. Part 1: General aspects [ITU-T Recommendation Q.920 (1993, modified]
STANDARD published on 1.9.1996
Designation standards: ČSN ETS 300402-1
Classification mark: 877085
Catalog number: 20410
Publication date standards: 1.9.1996
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN