0
RS232 is for point to point communication where as RS 485 is for multidpoint communication, Voltage level and speed differ
Hi frnds,,
There are few points which v can discuss on these are
1) Ya first main important point is RS232 is point to point communication n RS485 is multidrope communication which means ...
on RS232 u can not connect more than two device...
RS485 u can connect upto I think max 128 device theorically..(its depends on noise level as well as on distance and burd rate also)
Practicall as max 32...
2)Voltage level of RS232 is
-3 to -25 for 1
+3 to +25V for 0
while RS485 is based on differential voltage (0-5v) diff is 240mV for 1 and -240mV for 0.
3)distance limitation is 100meter for RS232 and 1Km for RS485,
4)noise immunity is high for RS485 as it is balance protocol and differencial protocol..
5)Software point of view u need to set transmit enable line in RS485 rest of the software is same...
6)pin for 232 is (Rx Tx and GND) while in case of RS485 it is (A(+) and B(-)) no need to transmit GND..signal
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoThere are a number of mayor differences and I will point out a few that I consider to be of most importance.
- Speed. RS485 provides a lot higher speed. Up to 35Mbits for short stretch of cable. Up to 100kbits for stretches up to 4000 feet (1200 meters). RS232 is designed for lower speeds (20kbits) although many modern designs can stretch the limitations to 115kbits for short cables.
- Range. RS485 utilizes twisted pair cable and is well able to transmit and receive signals to/from as far away as 4000 feet. Maximum distance with RS232 is 1000 feet and even then only if special cable is used. RS232 is commonly not using longer cables than approx 50 feet (15 meters)
- Flexibility. RS232 is designed for communication with one device only. RS485 can connect to up to 32 different devices.
More facts regarding these can be found on Wikipedia. Please look at related links down below.
Wiki User
∙ 14y agoEthernet and RS485 are two different standards of cable used at different times to connect computers. They use different connectors to do the same communications function
Wiki User
∙ 13y agothey have different numbers.
Add your answer:
Earn +20 pts
Where did the 232 in RS-232 come from?
The 232 doesn't stand or come from anywhere. It's just a reference number. RS-232 = Recommended Standard 232
IS RS-232 an input or a output?
RS-232 is a Recommeded Standard (RS) for serial communications. It can be both input and output, or just one or the other. There are RS-232 devices called DCE (for Data Communications Equipment) like a printer, modem, mouse, joystick, monitor. There are RS-232 devices called DTE (for Data Terminal Equipment) like a notebook computer or tower. Two computers may talk to each other over an RS-232 link. The "boss" computer would be the DTE; the "slave" computer would be the DCE. {In practice, nobody really uses RS-232 for intra-computer linking in home or office, but it might be used for fairly long connections on, say, an antenna farm if fiber optics is unaffordable.}
What is a peripheral port?
This is the communications port on your computer, also called the COM or RS-232 port.
What is the minimum starting salary after doing B.tech in information technology in India?
Rs 8000 .00
WHAT IS RS-232C?
From Wikipedia:"In telecommunications, RS-232 (Recommended Standard 232) is a standard for serial binary data signals connecting between a DTE (Data Terminal Equipment) and a DCE (Data Circuit-terminating Equipment). It is commonly used in computer serial ports. A similar ITU-T standard is V.24."Or in other words, a particular series of computer parts that allow everything in the computer communicate with each other. so it's not a particular thing, it's a type of thing. sort of like roads and railways are both ways to get places, but but use a different series of pieces and means to get to those places. RS-232 is an older way for computers to communicate and is being replaced by newer things, very slowly.
What is 485 communications?
RS-485 is a two wire serial protocol.
Do Rs 232 to RS 485 converters require supply?
Yes. Most use wall-wart transformers.
What is the difference between the currency of India and Australia?
rs.100
How does the RS 485 communication standard work?
The two web links may get you started!
How does the RS-485 communication standard work?
The two web links may get you started!
Which country invented rs485?
The United States of America invented the electronic standard RS-485.
How do I connect RS-485 communication control board connection to control the camera.?
peel out RS485 communication cable, then connect back of the DVR panel. in RS 485 control system then ... go to protocol setting in the DVR on that assign camera ID.. then save.. finish.
What is the difference between eclipse gt and rs eclipse?
http://en.wikipedia.org/wiki/Mitsubishi_Eclipse
Is there a difference between a 1995 Camaro 3.8 and a 1996 Camaro 3.8 rs?
Stock 1993-1997 Camaro (non z28 or Rs) came with a 3.4 sfi motor. All the rs camaros came with the 3.8 sfi motor. So no there is no difference
What is difference between rs and sr flip flop?
same, just invertment of each other
What is the difference between the ford RS sport and the RS 500?
The 500 has 45 more hp and 20nm of tq, custom hood/paint and is limited to 500 units.
What is the gas mileage difference between a 91 Camaro RS with a V6 and a 91 Camaro RS with a V8?
Around 1-3 MPG less in both city/hwy
