Synonym neutral direct-current telegraph system.

Synonym neutral direct-current telegraph system.

Synonym single-ended synchronization.

A feature, e.g., call/service attempt manipulation, that applies to only one of the parties that may be involved on a call/service attempt. [T1.667-1999]

Synchronization between two locations, in which phase error signals used to control the clock at one location are derived by comparing the phase of the incoming signals to the phase of the internal clock at that location. Synonym single-ended control.

In telephony, signaling in which dial pulses or supervisory signals are conveyed by a single voice-frequency tone in each direction.
Note 1: An SF signaling unit converts E & M signaling to a format (characterized by the presence or absence of a single voice-frequency tone), which is suitable for transmission over an ac path, e.g., a carrier system. The SF… (Read More →)

Interference caused by a single-frequency source.
Note 1: An example of single-frequency interference is interference in a transmission channel induced by a 60-Hz source.
Note 2: The interference caused by the single-frequency source may have other frequencies and may also appear in many channels.

Of a fundamental frequency, the ratio of the power of a specified harmonic to the power of the fundamental frequency.
Note: Single-harmonic distortion is measured at the output of a device under specified conditions and is expressed in dB.

1. A functional unit that can only process data of a single security level at a particular time. [2382-pt.8]
2. [An] information system (IS) device not trusted to properly maintain and separate data to different security levels. [INFOSEC-99]
3. A device that is used to process data of a single security level at any one time. Since the device need… (Read More →)

Synonym single-mode optical fiber.