ITU-T X.20 BIS
Use on public data networks of Data Terminal Equipment (DTE) which is designed for interfacing to asynchronous duplex V-Series modems
|Publication Date:||1 November 1988|
This Recommendation applies to the interface between a DTE designed for interfacing to duplex V-Series modems for start-stop transmission and a DCE on public data networks.
The operation is limited to start-stop transmission at data signalling rates and character structures specified for start:-stop transmission in Recommendation X.1.
The application comprises:
a) circuit switched service,
b) leased circuit service (point-to-point and centralized multipoint).