![]() In practice, the distinction between Data Terminal Equipment (DTE) and Data Communications Equipment (DCE) is simply a matter of function. In the world of serial communications, there are two different kinds of equipment: Early RS-232 connections were commonly used to connect terminal equipment to modems, so these topics are often intertwined.ĭata Terminal/Communications Equipment However, a fully implemented connection can contain as many as 25 wires. The simplest connection in common usage contains three wires: transmit (tx), receive (rx), and ground (gnd). At a minimum, an RS-232 connection may consist of a single wire connected between two pieces of equipment. This standard dates back to 1962 but has been substantially revised over the years to accommodate changes to communications technology. RS-232 is a standard for serial data communication between computing equipment. 7 Relationship of Baud Rate to Maximum Distance.2 Data Terminal/Communications Equipment. ![]()
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