CONTENTS

 1     Scope
        1.3     Operation of DTE-DCE interface after failure to establish error-correcting (Recommen­dation V.42) operation
 2     Data signalling rates
 3     Signalling rate ranges of the start-stop characters at the converter input
 4     Start-stop character format
 5     Margin of the converter input
 6     Selection of synchronous or asynchronous modes of operation
 7     Async-to-sync conversion method
        7.1     Transmitter
        7.2     Receiver
        7.3     Break signal
        7.4     Tandem operation
        7.5     Testing facilities
Annex A – Inclusion of an async-to-sync converter into a synchronous DCE