A digital signaling rate of
6. 312 Mb/s, corresponding to the North American and Japanese T2 designator.

1. A digital signal rate of
4
4. 736 Mb/s, corresponding to the North American T3 designator.
2. A digital signaling rate of
3
2. 064 Mb/s, corresponding to the Japanese T3 designator.

1. A digital signal rate of
27
4. 176 Mb/s, corresponding to the North American T4 designator.
2. A digital signaling rate of
9
7. 728 Mb/s, corresponding to the Japanese T4 designator.

See digital signal
1.

1. A cryptographic modification of data that provides: (a) origin authentication, (b) data integrity, and (c) signer nonrepudiation (when associated with a data unit and accompanied by the corresponding public-key certificate). [After X9.49]
2. [A] cryptographic process used to assure message originator authenticity, integrity, and nonrepudiation. Synonym electronic signature. [INFOSEC-99]

[A] procedure that appends data to, or performs a cryptographic transformation of, a data unit. The appended data or cryptographic transformation allows reception of the data unit and protects against forgery, e.g., by the recipient. [INFOSEC-99]

A 1994-approved specification (FIPS-186-1) ruling the use of a single technique for generating signatures using the Digital Signature Algorithm.

In the reception of a digital data stream, the loss of a bit, or the insertion by the receiver of a bit that was not transmitted, because of a difference in the bit rates of the incoming data stream and the local clock.

1. In digital speech transmission, the use of periods of inactivity or constant signal level to increase the transmission efficiency by insertion of additional signals.
2. A process that takes advantage of inactive periods of a conversation to insert speech from other conversations and to remove silent periods. [T1.509-1995]

In Integrated Services Digital Networks (ISDN), equipment that provides full-duplex service on a single twisted metallic pair at a rate sufficient to support ISDN basic access and additional framing, timing recovery, and operational functions.
Note: The physical termination of the DSL at the network end is the line termination; the physical termination at the customer end is the network termination.