A device used for interfacing data terminal equipment (DTE) to the public telephone network. 2. A type of short-haul, synchronous-data line driver, usually installed at a user location, that connects user synchronous equipment over a 4-wire circuit at a preset transmission rate to a servicing central office. Note: This service can be for a point-to [..]

A simplified modem for the transmission of digital data over a private line or for limited-distance communications over the PSTN, where it is not necessary to comply with all the requirements for a hi [..]

A network device that converts digital data frames from the communications technology used on a local-area network (LAN) into frames appropriate to the communications technology used on the wide-area network (WAN) and vice versa.

A DCE device that interprets, interfaces, and provides timing and signal control between a DTE (Data Terminal Equipment) device and a digital network.

A DSU is a device that takes data from a LAN device and creates digital information suitable for public transmission facilities. A DSU is necessary to connect CPE to digital transmission facilities such as a T1 circuit. It is normally used in conjunction with a CSU in a device called a DSU/CSU.