I.S. ETS 300 103:1991
Current
The latest, up-to-date edition.
INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - SUPPORT OF CCITT RECOMMENDATION X.21, X.21 BIS AND X.20 BIS BASED DATA TERMINAL EQUIPMENTS (DTES) BY AN ISDN SYNCHRONOUS AND ASYNCHRONOUS TERMINAL ADAPTION FUNCTIONS
12-01-2013
Covers the connection of X.21 and X.21 bis based terminal of user classes of service 3 to 7 and 19, and X.20 bis based terminal of CCITT user classes of service 1 and 2 and 19200 bit/s and of asynchronous data rates of 600, 1200, 2400, 3600, 4800, 7200, 9600, 1200, 14400, to the ISDN operating in accordance with circuit-switched or leased circuit services.
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.