DTE DCE

From HwB

DTE=Data Terminal Equipment
DCE=Data Communication Equipment

Contents

DTE

Usually a computer, printer or terminal.

DCE

Usually a modem or similar device.

Connection

DTE to DCE use a straight cable (modem cable). Rx-Rx, Tx-Tx, Gnd-Gnd.
DTE to DTE use a crossed cable (nullmodem cable). Rx-Tx, Tx-Rx, Gnd-Gnd.
DCE to DCE use a crossed cable (nullmodem cable). Rx-Tx, Tx-Rx, Gnd-Gnd. (unusual)

Contributors