RS-232 Functional Characteristics Quiz

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the function of pin 5 in an RS-232 connection?

Signal reference for all data, control, and timing signals
Handshake signal from DCE to DTE (correct)
Receive data from DCE to DTE
Request to send data from DTE to DCE

Which pin on an RS-232 connection indicates the availability of the communications channel?

Pin 8
Pin 4
Pin 6 (correct)
Pin 3

On an RS-232 connection, what is the purpose of pin 7?

Handshake signal from DCE to DTE
Request to send data from DTE to DCE
Receive data from DCE to DTE
Signal reference for all data, control, and timing signals (correct)

What does pin 4 signify in an RS-232 connection?

Permission request from DTE to DCE (D) Signup and view all the answers

Which pin in an RS-232 connection is responsible for transmitting data from DTE to DCE?

Pin 2 (B) Signup and view all the answers

If a device connected via RS-232 receives an active condition on RTS, what should it expect subsequently based on the standard protocol?

'Handshake' signal on CTS (D) Signup and view all the answers

Flashcards

What is the function of pin 6 in an RS-232 connection?

A signal from the DCE (Data Communications Equipment) to the DTE (Data Terminal Equipment) to indicate the availability of the communication channel. It's essentially the DCE saying to the DTE, "I'm ready to send you data!", and waiting for the DTE to respond.

What is the purpose of pin 4 on an RS-232 connection?

A signal from the DTE to the DCE to request permission to send data. The DTE is asking the DCE, "Are you ready to receive data?"

Which pin in an RS-232 connection transmits data from DTE to DCE?

The pin responsible for transmitting data from the DTE to the DCE. It's the main highway for data traveling from the device you are using to the external communication equipment.

What is the purpose of pin 7?

The pin that establishes the ground reference for all other signals on the RS-232 connection, ensuring that all signals are measured relative to this common ground.

Signup and view all the flashcards

What does an active condition on RTS mean for a device connected via RS-232?

A handshake signal from the DCE to the DTE, indicating that the DCE is ready to receive data. It's the DCE's reply to the DTE's request to send data.

Signup and view all the flashcards

What is the function of pin 5 in an RS-232 connection?

A signal from the DCE to the DTE, indicating that the DCE is ready to receive data. It's a confirmation to the DTE that the communication channel is ready to send data.

Signup and view all the flashcards

Study Notes

RS-232 Connection Pin Functions

Pin 5 is the Signal Ground, serving as the common reference point for all signals in the RS-232 connection.
Pin 4 indicates the Request to Send (RTS) status, which signals the availability of the communications channel for data transmission.
Pin 7 acts as the Clear to Send (CTS) line, confirming to the DTE (Data Terminal Equipment) that the DCE (Data Communication Equipment) is ready to receive data.
Pin 3 is used for Transmit Data (TD), responsible for transmitting data from the DTE to the DCE.
Upon receiving an active condition on RTS, the device should expect the Clear to Send (CTS) signal, allowing it to commence data transmission.

Key Signals in RS-232

An active RTS line means that the sender is ready to initiate communication.
CTS is a critical response that ensures the DCE can accept data from the DTE, ensuring proper data flow and communication integrity.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Test your knowledge on the RS-232 functional characteristics including chassis ground, transmit data, receive data, and request to send. This quiz is based on the ECE course at Saint Louis University, Baguio City.