A complex that includes the DEO and all connected remote switching units (RSUs), remote digital terminals (RDTS) and optical network units (ONUs). [T1.508-1998]

In cryptosystems, data appended to a message, that allow the intended recipient to verify the integrity of the content of the message. [2382-pt.8]

An inconsistency between the digital signal actually received and the digital signal that should have been received.

An exchange that switches digital signals by means of digital switching. [T1.206-1988]

Facsimile equipment that digitally encodes the picture signal, i.e., encodes the baseband signal resulting from scanning the object.
Note: The facsimile equipment output may be either (a) analog, as defined by CCITT Group 3 protocol, or (b) digital, as defined by CCITT Group 4, STANAG 5000 Type I, and STANAG 5000 Type II protocols.

A filter (usually linear), in discrete time, that is normally implemented through digital electronic computation.
Note: Digital filters differ from continuous time filters only in application. The parameters of digital filters are generally more stable than the parameters of commonly used analog (continuous) filters. Digital filters can be applied as optimal estimators. Commonly used forms are finite impulse response (FIR)… (Read More →)

1. A characteristic of a data item, such as a cryptographic checkvalue or the result of performing a one-way hash function on the data, that is sufficiently peculiar to the data item that it is computationally infeasible to find another data item that will possess the same characteristics [10181-1].
2. A characteristic of a data item, such as a cryptographic… (Read More →)

The transmission of digital data by frequency modulation of a carrier, as in binary frequency-shift keying.

See digroup.

A means of digital transmission with specified characteristics between two points. [T1.206-1988]