Data Terminal Equipment ( DTE )

   

Any device that is a source of data transmission over a serial telecommunications link. Typically, data terminal equipment (DTE) can be a computer, a terminal, a router, an access server, or some similar device. The earliest form of DTE was the teletype machine.

 

Graphic D-9. Data terminal equipment (DTE).

The term “DTE” specifically refers to a device that uses serial transmission such as the transmissions involving the serial port of a computer. Most serial interface devices contain a chip called a universal asynchronous receiver-transmitter (UART) that can translate the synchronous parallel data transmission that occurs within the computer’s system bus into an asynchronous serial transmission for communication through the serial port. The UART also performs other functions in a DTE:

• Error detection, to ensure that data arrives at its destination uncorrupted
• Clocking, to ensure that data is sent at the correct rate in order to be received at its destination

To connect a DTE to a telecommunications link, you use data communications equipment (DCE). The DCE provides termination for the telecommunications link and an interface for connecting the DTE to the link. An example of a DCE for connecting a DTE to the local loop Plain Old Telephone Service (POTS) connection is a modem.

     In computer data transmission, DTE (Data Terminal Equipment) is the RS-232C interface that a computer uses to exchange data with a modem or other serial device. For further information about the DTE interface and its relationship to the Data Communication Equipment (DCE) interface, see RS-232C.

Data Terminal Equipment (DTE) is any equipment that is either a source or destination for digital data. DTE do not generally communicate with each other to do so they need to use DCE to carry out the communication. DTE does not need to know how data is sent or received; the communications details are left to the DCE. A typical example of DTE is a computer.
Other common DTE examples include:

• Printers
• File and application servers
• PCs
• Dumb Terminals
• Routers

     Dalam transmisi data komputer, DTE (Data Terminal Equipment) adalah antarmuka RS-232C yang menggunakan komputer untuk bertukar data dengan modem atau perangkat seri lainnya. Untuk informasi lebih lanjut tentang antarmuka DTE dan hubungannya dengan Data Communication Equipment (DCE) antarmuka, lihat RS232C.