In a ring network, such as a token ring network, the time required for a signal to propagate once around the ring.
Note 1: Ring latency may be measured in seconds or in bits at the data transmission rate.
Note 2: Ring latency includes signal propagation delays in (a) the ring medium, (b) the drop cables, and (c) the data… (Read More →)

See network topology.

See network topology.

See round-trip delay time.

Removal of an alerting signal in response to a loop closure. [T1.407-1997]

1. The improper routing of a call back through a switching center already engaged in attempting to complete the same call.
2. In secondary surveillance radar, the presence of false targets declared as a result of transponder interrogation by side lobes of the interrogating antenna.

1. In telephony, a signal, usually consisting of an audio tone interrupted at a slow rate, provided to a caller to indicate that the called-party instrument is receiving a ringing signal.
Note: This signal may be generated by the called-party servicing switch or by the calling-party switch.
2. A ringing signal returned to a caller to indicate that one of… (Read More →)

Synonym audible ringing tone.

In telephony, a method of signaling an operator in which telephone ringing current is sent over the line to operate a lamp and cause the drop of a self-locking relay.
Note 1: Ringdown (a) is used in manual operation, as distinguished from dialing, (b) uses a continuous or pulsed ac signal transmitted over the line, and (c) may be used… (Read More →)

In telephony, a circuit in which manually generated signaling power is used to perform ringdown.