RS-232

(redirected from Rs232)
Also found in: Acronyms.

RS-232

(communications)
A standard developed by the Electronic Industries Association that governs the interface between data processing and data communications equipment, and is widely used to connect microcomputers to peripheral devices.

RS-232

RS-232

(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). The RS-232 cable limitation of 50 feet can be extended to several hundred feet with high-quality cable.

Although RS-232 defines the signals for 25 lines, many applications use less than a dozen, which is why both DB-25 and DB-9 connectors are used. RS-232 transmits positive voltage for a 0 and a negative voltage for a 1. In 1984, RS-232 was officially renamed TIA/EIA-232-E. See RS-232/485.

Pin Settings for Plug(Reverse order for socket.)
  ______________________________________
  1  2  3  4  5  6  7  8  9  10 11 12 13
   14 15 16 17 18 19 20 21 22 23 24 25

           _________________
             1  2  3  4  5
               6  7  8  9


 25 pin                        9 pin

  1 - PG   Protective ground
  2 - TD   Transmitted data     3
  3 - RD   Received data        2
  4 - RTS  Request to send      7
  5 - CTS  Clear to send        8
  6 - DSR  Data set ready       6
  7 - SG   Signal ground        5
  8 - CD   Carrier detect       1
  9 - + voltage (testing)
 10 - - voltage (testing)
 11 - 
 12 - SCD  Secondary CD
 13 - SCS  Secondary CTS
 14 - STD  Secondary TD
 15 - TC   Transmit clock
 16 - SRD  Secondary RD
 17 - RC   Receiver clock
 18 - 
 19 - SRS  Secondary RTS            9 pin
 20 - DTR  Data terminal ready      4
 21 - SQD  Signal quality detector
 22 - RI   Ring indicator           9
 23 - DRS  Data rate select
 24 - XTC  External clock
 25 - 
References in periodicals archive ?
They also are providing the same sort of "virtual COM port" drivers with the instrument so that you can continue to use legacy RS232 communication software to communicate with the instrument even though the cable connection from the instrument is either a USB cable or a network cable.
In addition, when used in conjunction with static IP addressed SIMs, also available from Amplicon, the RS232 and Ethernet devices attached can be connected to directly from any Internet-facing PC in the world, the company claims.
Interfaces: RS232 sencillo o dual, IBM 46XX, OCIA y PC AT/PS2 para mas de 400 terminales, emulacion lapiz .
If your device has an RS232 interface for communicating data, and the ability to pass AT commands to control the modem, the new MultiModem makes connecting to the Internet easier and frees your development time for core applications.
With full RS232 support to control and manipulate remote video display panels and supporting resolutions up to HD1080p, the AV200 series is the ideal professional narrowcast digital signage solution.
com)-- The RoHS 2 Compliant Fiber 232[R] Model 4154 POF (Plastic Optical Fiber) Fiber Optic Repeater with RS232 Traffic Monitor port is used to regenerate data signals in order to extend the range between optically linked Video Lottery Terminals, Gaming Machines, or other such networks.
Electro Standards Laboratories (ESL) announces the Pathway Model 7363, 6-Channel RJ45 Tl Interface SVCN/GPCN Switch with RS232 Remote.
When more sophisticated analyses are re-quired, the software supports RS232 communication with external de-vices, such as PCs or dataloggers, en-abling test procedures and results to be downloaded, archived and processed.
Sipex Corporation (NASDAQ:SIPX), a provider of high performance, analog integrated circuits (ICs), has introduced a new 3V RS232 transceiver, the SP3282EB.
Multipurpose controls provide stand-along remote control logic or provide as part of a complete networked machine control system, including: a multipurpose I/O module with analog sensor inputs, digital inputs and both switching and PWM outputs for hydraulic valves (24 or 8 I/O version available)--CAN or RS232 communication interfaces; a digital I/O module with 16 digital inputs and 16 on/off outputs--CAN or RS232 communication interfaces; a dual multipurpose digital controller with analog sensor, PT, pulse RPM sensor and digital inputs and two independent switching or proportional outputs--RS 232 interface; and a quad multipurpose digital controller with digital inputs, RPM sensor input, and outputs for on/off valves--RS232 interface.
The new system makes optional all ancillary functions that were standard on the Procan 2, such as floppy disk or RS232 port.
TELECOMWORLDWIRE-20 August 2001-Red Lion introduces RS232 to RS485 converter (C)1994-2001 M2 COMMUNICATIONS LTD http://www.