A data network in which synchronism is achieved and maintained between data circuit-terminating equipment (DCE) and the data switching exchange (DSE), and between DSEs.
Note: The data signaling rates are controlled by timing equipment within the network.

1. A network in which clocks are controlled to run, ideally, at identical rates, or at the same mean rate with a fixed relative phase displacement, within a specified limited range.
Note: Ideally, the clocks are synchronous, but they may be mesochronous in practice. By common usage, such mesochronous networks are frequently described as "synchronous. "
2. A network in… (Read More →)

See SONET.

An arrangement that permits sequential connection of tie trunks between PBX and Centrex® locations by using tandem operation.
Note: Tandem operation permits two or more dial tie trunks to be connected at a tandem center to form a through connection.

A network that interfaces with a telecommunications network at several points in order to receive information from, and to control the operation of, the telecommunications network.
Note: A TMN may use parts of the managed telecommunications network to provide for the TMN communications.

Of a UPT call, any network function associated with the termination of the call to the destination terminal. [After T
1. Rpt41-1995]

A bus network in which a token passing procedure is used.

See network topology.

A network service feature that specifies the sequence of networks used to establish or partially establish a virtual circuit.

A network section between two internet circuit sections. [T1.504-1989]