ITU-T Q.415-1989
Line Signalling, Analogue Version - Signal Receiver - Specifications of Signalling Systems R1 and R2 (Study Group XI) 2 pp

Standard No.

ITU-T Q.415-1989

Release Date

1989

Published By

International Telecommunication Union (ITU)

Status

Withdraw

Latest

ITU-T Q.415-1989

Scope

The response time of the signal sender is defined as the interval between the instant when the change signalling condition command is applied to the sender and the instant at which the envelope of the signalling frequency, measured at the group distributi

ITU-T Q.415-1989 history

• 1989 ITU-T Q.415-1989 Line Signalling, Analogue Version - Signal Receiver - Specifications of Signalling Systems R1 and R2 (Study Group XI) 2 pp