RS-232, RS-449, RS-530, V-24, and X-21 are examples of?
A)standards for various types of transmission channels.
B)standards for interfaces between terminals and modems.
C)two methods of error detection and correction
D)standards for end-to-end performance of data communication systems.

Question

Quizplus · Accepted Answer

RS-232, RS-449, RS-530, V-24, and X-21 are standards for interfaces between data terminal equipment (DTE) and data communication equipment (DCE), such as between computers and modems, specifying electrical, mechanical, and functional characteristics.

RS-232, RS-449, RS-530, V-24, and X-21 Are Examples Of