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StarTech.com RS-232 - RS485/422 manual

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Table of contents for the manual

  • Page 1

    Installation Manual IC485S IC485SGB IC485SEU Inter face C on ver ter RS-232 to RS-485/422 Serial Interface Con verter[...]

  • Page 2

    1 10 Overview Changing line signals is no longer a problem. StarT ech.com’ s IC485S / GB / EU conv er ts RS-232 serial interfaces to RS-485/422 serial interfaces . This 2 in 1 con verter conv er ts RS232C to either the RS 485 or RS 422 interface . Other features include DCE/ DTE selectable modes, point to point m ultidrop configuration and the ab[...]

  • Page 3

    9 2 Getting Star ted This section is designed to help you prepare the IC485S / GB / EU f or installation. Please read through this section carefully before attempting to install the con verter. Unpacking the IC485S / GB / EU This package should contain: X INTERF ACE CON VER TER s X POW ER ADAPTER s Installation Before [...]

  • Page 4

    3 8 Operation The IC485S / GB / EU supports 4 kinds of functions in 6 types of configurations. Point-to-P oint P oint-to-Point configur ation means two devices that locate diff erent places can be linked together to communicate through a couple of IC485S / GB / EU devices . If the PC1 is a DTE device , then the Device A SW1 should be set to DCE. If[...]

  • Page 5

    7 4 Multidrop Multidrop configuration means that more than two de vices can be linked all together to communicate to one another through many IC485S / GB / EU de vices. In this configuration, one of the IC485S / GB / EU devices will be connected to a master de vice and the rest of the IC485S / GB / EU devices will be connected to man y other slave [...]

  • Page 6

    5 6 PC1 COM1/ COM2 T+ T- R- R+ IC485S => A PC2 COM1/ COM2 R+ R- T- T+ IC485S => PC3 COM1/ COM2 => PC4 COM1/ COM2 => B1 R+ R- T- T+ IC485S B2 R+ R- T- T+ IC485S B3 Device A B SW1 DCE/DTE DCE/DTE SW2 TxRTS, RxR TS TxRTS, RxR TS Multidrop/2-Wire Half Duplex Configuration[...]

  • Page 7

    5 6 Simplex/T ransmit, Receive Only 3IMPLEXCONFIGURATIONMEANS THATMORETHAN TWODEVICESCANBE LINKEDALLTOGETHER TO communicate through many IC485S / GB / EU de vices. Its configuration is like the Multidrop’ s, but the master de vice can talk only and the slave de vices can listen only . Note: Bn means any o[...]

  • Page 8

    7 4 Monitor Mode Monitor configuration means an IC485S / GB / EU device can be wired to the lines of RS-232 or RS-422 devices to monitor the line signals . In this configur ation the IC485S / GB / EU will change the function of the T+ and T - to R’+ and R’- respectiv ely . Before operating, the user m ust complete the installation according to [...]

  • Page 9

    3 8 Others T erminal Block Definition The four-scre w ter minal b lock has different definitions in diff erent operation modes. )NTHE $#%$4%MODETHE TERMINAL 6AND 6ARE CONFIGUREDTO TRANSMITDATA THETRANSMITTER  THE TERMINAL 6AND?[...]

  • Page 10

    9 2 !PPENDIX T roub leshooting )FFAILUREOF PRINTINGSTILL E XISTS UPONTHEABOVESOLUTIONSPLEASE CONTACTYOURDEALER for help . RS-232 DCE/DTE Description Note: The DTE mode de vices must be connected ti a DCE mode device because the polarity of the communication signals are different. Problem Solution Failure[...]

  • Page 11

    1 10 Radio and TV Interference Warning!!! This equipment generates , uses and radiates radio frequency energy and if not installed and used in accordance with the instruction manual may case interf erence to radio and television reception. It has been tested and found to comply with the limits for a Class A computing de vice in accordance with the [...]

  • Page 12

    PP5-C9500- 2 11[...]