Acronym for secure telephone unit. A U. S. Government-approved telecommunications terminal that protects the transmission of sensitive or classified information in voice, data, and facsimile systems.

A network that conveys data only among local hosts.
Note: Even if the local hosts are connected to more than one other network, these hosts do not carry traffic between these other networks. [2382-pt.35]

A communications link used for the transmission of broadcast material from a studio to the transmitter.
Note: The STL may be a microwave, radio, or landline link.

See bit stuffing, de-stuffing.

Simple Traversal of UDP over NATs

A device that controls the nonprinting functions of a printer at a terminal.

Abbreviation for start-of-text character.

Acronym for substitute character.

Modulation in which (a) an audio frequency band is split into two sub-bands, i.e., a higher and a lower band, and (b) the signals in each sub-band are encoded using ADPCM.

[An] Individual with primary responsibility for managing the distinguished name process. [INFOSEC-99]