Data terminal equipment

nounStandard termTelecom & IT

Any end-user device that acts as the source or destination of digital information on a network.

This classification covers computers, printers, and terminals that generate or consume data. In standard serial communications like RS-232, it dictates the pinout configuration used to connect to a modem or network interface. The distinction ensures that transmit pins on the terminal connect to receive pins on the communication equipment.

Heard on the job

Make sure the new router is configured as DCE so it talks correctly to the customer's data terminal equipment without needing a crossover cable.

Insider tip

In older RS-232 serial links, DTE devices typically use male connectors while DCE devices use female ones.

Also heard as

  • DTE

Do not mix it up with

  • DCE: Data terminal equipment generates the data, while data circuit-terminating equipment (DCE) provides the clocking and network connection.