What is the used of RS-232 serial port in serial communication?
RS232 is a standard protocol used for serial communication, it is used for connecting computer and its peripheral devices to allow serial data exchange between them. As it obtains the voltage for the path used for the data exchange between the devices.
How do I connect two computers with a serial port?
- Open Device Manager on both systems.
- Connect the null modem cable between the serial port cable headers on the two systems.
- Identify the COM port that the cable has been connected to on each system.
- On both systems, right-click PuTTY.exe and click Run as administrator.
Is RS-232 a communication protocol?
RS232 is a Serial Communication Standard developed by the Electronic Industry Association (EIA) and Telecommunications Industry Association (TIA). RS232 defines the signals connecting between DTE and DCE. Here, DTE stands for Data Terminal Equipment and an example for DTE is a computer.
What does RS-232 stand for?
(Recommended Standard-232) A TIA/EIA standard for serial transmission. Although employed for numerous other purposes, the RS-232 serial port was widely used on earlier personal computers prior to USB (see serial port).
Is RS-232 digital or analog?
It output is digital but, not as TTL or CMOS standard. It s output signal varies between +10 to -10 voltage.
What is computer computer communication?
The project is a wireless message communication system that enables communication between two computers by making use of 2.4GHz trans-receiver units. The project can be used in offices for communication between employees or managers. RS232 protocol is used between the modules and the PC for communication purpose.
How do two computers communicate?
Using the Internet, computers connect and communicate with one another, primarily using the TCP/IP (Transmission Control Protocol / Internet Protocol). Think of TCP/IP as a book of rules, a step-by-step guide that each computer uses to know how to talk to another computer.
How long does it take for RS232 to transmit data?
Basically it can transfer a single byte of data over a serial cable having between 3 to 22 signals and running at speeds from 100 to 20k baud. Common baud rates used are 2.4k, 9.6k, 19.2k, The cable length can be up to 50ft.
Can RS-232 serial port be used for PC to PC communication?
An endeavor has been made in this article to bring forth a simple, easy and novel way of implementing PC-to-PC communication via RS-232 serial port using C language.
Can an inexpensive processor be used as an interface for RS-232?
Abstract: An inexpensive processor can be used as an interface between a PC’s RS-232 port and any Maxim or Dallas 2-wire device. This allows manipulation of the 2-wire device for evaluation (during prototype) or for use during some testing procedures.
What is the purpose of the serial port?
Since the serial port is being used for communication to 2-wire devices in the reference design, three main things need to be addressed to allow communication between the PC and the microprocessor. What is going to be used to shift the RS232 signal levels to levels the microprocessor can handle?
Why is a max3223 used for the RS232 port?
To translate the signal levels for the RS232 port, a MAX3223 was chosen because it provides true RS232 signal levels when used with a single power supply (3.0V to 5.5V). Additionally it has two channels, which will allow the use of the serial port’s DTR (data terminal ready) signal to reset the board.