NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
Standards
[CURRENT]
ETS 300012
ETS 300012
Integrated Services Digital Network (ISDN); basic user-network interface; layer 1; specification and test principles
Title (German)
ISDN; Teilnehmer-Netz-Schnittstelle des Basisanschlusses; Schicht 1; Spezifikation und Testprinzipien