Communication Between DTE Devices

In other words, DTE-to-DTE communication involves three stages:

• DTE(1)-to-DCE(1)

• DCE(1)-to-DCE(2)

• DCE(2)-to-DTE(2)

Each of the three stages requires different cabling and configuration. The next section describes how the DTE-to-DCE interface defined by the EIA/TIA-232 standard works. (TIA stands for Telecommunications Industries Association.)