Line Signalling, Analogue Version - Clauses for Exchange Line Signalling Equipment. Clauses for Transmission Line Signalling Equipment - Specifications of Signalling Systems R1 and R2 (Study Group XI) 7 pp
The transition from one signalling condition to another corresponds to the transfer of a line signal according to the definitions in 0 1. To change from the release state to the idle state additional criteria (timing) are necessary to ensure a defined seq