| RS232-485 Technology: General
overview related subjects: Datacommunication: bussystems,
I2C-I2S bussystems,
Circuits |
|
Data
transmission circuits RS 485 multipoint RS485/RS422 transceivers, EIA-485/EIA-422A differential bus transceivers, low power RS485 / RS422 multipoint
transceivers, RS485 / RS422 quad differential line receiver |
| General introduction to serial protocols |
| Interfacing with the computer
USB bus and RS232, 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, a tip |
|
Liaison série en Français |
|
RS232
RS-232 Features Explained, Selecting and using RS-232 Interface Parts for Your
Power Supply Voltages, Selecting and Using RS-232, RS-422, and RS-485 Serial
Data Standards, New RS-232 ICs Feature 1µA Supply Current, ±15kV ESD Protection,
and 3V Operation |
| Selecting and
using serial data standards RS232. similarly, RS485 and RS422 : how to convert one to another, and how to combine them in certain applications |
|
Serial Data Communications Introduction and OSI Network Model, RS-232 Wiring
and Connections, Typical RS232-Hardware Configuration, Low-Level serial
Interface Hardware, Programming the 8250 UART, MAX232 Driver/Receiver Family,
Specific Programming Environments, Serial Data Communications in DOS, TAPI
communications in Windows, Serial communications in Linux and Unix, Serial
communications using Java |
| Technical articles
RS485, USB, serial and parallel port |
| Windmill data
acquisition software, RS232, RS485, ethernet, USB, Wan, modbus |
| |
RS232 - software  |
| Port.dll
zip file |
|
Port.dll
zip file |
| Serial I/O (RS232)
under DOS, it was possible to directly access these ports. However, Windows 95 and above forbid direct hardware access. Therefore, this page exists to help get
around windows |
| RS232
software |
| Visual Basic .NET Code Sample
using the COM port in VB.NET |
| |
| RS232 -
RS422 - RS485
topics
related topic: RS232 cabling |
| DCIBUS
maakt gebruik van het RS-485 protocol, in Dutch |
|
Determining clock accuracy requirements for UART communications |
|
Fundamentals of RS-232 serial communications
today, the most popular serial communications standard in use is certainly the EIA/TIA-232-E specification. This standard, which has been developed by the
Electronic Industry Association and the Telecommunications Industry Association (EIA/TIA), is more popularly referred to simply as "RS-232" where "RS" stands
for "recommended standard", pdf file |
|
IEEE 488
en Français |
| Interfacing the serial / RS232 port |
| I/O
485 manual pdf file, 549 Kbytes |
| Line
drivers and receivers |
|
Parallèle Centronics habituellement utilisée pour la communication entre un micro-ordinateur et une imprimante, en Français |
| Practical
tips on serial communications RS-232 is a standard that describes a common method of serial signalling using a voltage that switches between a positive
level for logic "0" and a negative level for logic "1" |
| RS232
Nederlandse site, in Dutch |
| RS232 C
RS-232C is the most recent version of the EIA (Electronics Industry Association)
standard for low speed serial data communication. It defines a number of
parameters concerning voltage levels, loading characteristics and timing
relationships |
| RS232 connections, and wiring up serial devices
|
| RS232 data interface |
| RS-232 fundamentals
The electrical characteristics section of the RS–232 standard includes
specifications on voltage levels, rate of change of signal levels, and line
impedance, pdf file |
| RS232
standard EIA232
standard |
| RS 232, RS 422 and RS 485, transfer protocols |
| RS232 - RS485 converter |
| RS232 - RS485 converter pdf file |
| RS232 - 485 balanced voltage interface RS422 interfaces are typically used when the data rate or distance criteria cannot be met with RS-232 |
| RS 422
RS 485 RS-422 Balanced Voltage Interface,
RS232-485 Technology |
|
RS 422 |
| RS422 -
485 interface pdf file |
|
RS422 and 485
Standards Overview and System Configurations ANSI TIA/EIA-422 and
TIA/EIA-485 standards, commonly known as 422 and 485, respectively, specify
balanced data-transmission schemes for transmitting data over long distances in
noisy environments. These standards are compared, and their basic differences
and similarities are discussed, pdf file |
|
RS-422 Converter to 422 Device Illustration |
| RS422
RS485 application note the purpose of this application note is to describe the main elements of an RS422 and RS485 system,
Data Transmission Signals, Unbalanced Line Drivers, Balanced Line Drivers,
Balanced Line Receivers, EIA Standard RS-422 Data Transmission, EIA Standard
RS-485 Data Transmission, Tristate Control of an RS-485 Device Using RTS, Send
Data Control of an RS-485 Device, ... ,
Educypedia |
|
RS422
RS485 application note pdf file |
|
RS449 cable length recommendations |
| RS449 interface
cable connections, part of Connectivity info
connectivity provider: here you will find everything about LAN, WAN, serial,
parallel and telecom cables |
| RS449 interface
RS449 gets it's speed from the fact that, unlike RS232 which uses signals with reference to ground, it's receivers look for the difference between two wires |
|
RS-485 and MODBUS pdf file |
|
RS-485 and MODBUS |
|
RS485 Bus Systems The RS485 interface is - like the RS422 interface -
designed for serial high-speed data transmission over long distances and is
widely used in industrial applications |
| RS 485
differential data transmission system |
|
RS485 - basic info
This application note discusses the EIA-485 standard for differential multipoint
data transmission and its practical limits. It is commonly called RS-485, however its official name is EIA-485 which
reflects the name of the committee at the time it was released, pdf file |
| RS485
quick reference for
RS485, RS422, RS232 and RS423, voltages, current |
| RS485 The RS-485 is the recommend standard by the Electronic
Industries Association (EIA) that specifies the electrical characteristics of
generators and receivers that may be employed for the interchange of binary
signals in multipoint interconnection of digital equipments, ... |
| RS485
standard the basics |
| RS530 converter
RS530 is just like RS422 and uses a differential signaling on a DB25 - RS232
format - EIA-530 Transmit (and the other signals) use a twisted pair of wires
(TD+ & TD-) instead of TD and a ground reference as in RS232 or V.24. This
interface is used for HIGH SPEED synchronous protocols, ... |
| RS530 reference
RS530 is a standard for synchronous serial interfaces. Reducing the number of
signal pins allows the use of the common and much inexpensive DB-25 connector |
| Selecting and using RS-232, RS-422, and RS-485 serial data standards
Three common serial data standards, RS-232, RS-422, and RS-485, are described by
specification and electrical interface. Cable termination techniques, use of
multiple loads, daisy-chaining of RS-232, conversion of RS-232 to RS-485,
conversion of RS-485 to RS-232, and RS-232 port-powered RS-485 conversions are
described |
|
Serial and UART tutorial serial and UART tutorial, RS232 - software |
| Serial
Port Communication Serial communication requires that you specify the
following four parameters: The baud rate of the transmission, The number of data
bits encoding a character, The sense of the optional parity bit, The number of
stop bits, ... |
|
Tools for RS-232 interfacing |
|
Transient Protection of RS-422 and RS-485 Systems |
|
Using
RS-485/RS-422 Transceivers in Fieldbus Networks This article describes
several fieldbus technologies, and highlights some particularly useful features
of the available RS-485 transceivers, RS-485/RS-422 Fieldbus, INTERBUS network,
RS-422 Transceiver, PROFIBUS DP |
|
Horizontaal |
|
|
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Last updated on:
2011-01-02
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