Which statement accurately describes RS-232?

Study for the Internet of Things (IOT102) Test. Access comprehensive flashcards and multiple choice questions, each with hints and explanations. Get prepared for your exam!

RS-232 is a standard that defines how data is transmitted in a serial fashion between data terminal equipment (like a computer or terminal) and data circuit-terminating equipment (such as a modem or network interface). The core idea is one bit at a time over a single communication path (with a ground reference), rather than sending many bits simultaneously over multiple wires. It also specifies the electrical signaling levels and the physical connector layout so both ends understand the signals the same way. Because of this, RS-232 is inherently a wired, point-to-point, serial interface, not a parallel data transfer system, not a wireless protocol, and not a fiber-optic standard. This makes the statement describing RS-232 as a standard for serial communication between data terminal equipment and data circuit-terminating equipment the best fit.