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9CHAPTER 3: Installation3. InstallationThis section describes the jumper and switch functions for configuring theRS-232↔485/422 Converter. See Figure

10RS-232↔485/422 CONVERTERSNOTEWhen the jumper W9 (CTS) is in the ON position and jumper W15 is inthe A-B position, the RS-485 driver is always turned

11CHAPTER 3: Installation3.1.4 CTS DELAY(W9 JUMPER)When the transmitter of a device is first turned on, an unstable carrier signal istransmitted for

12RS-232↔485/422 CONVERTERSDriver Enabled by DataThe RS-485 driver can also be enabled without requiring an RS-232 control lead tobe asserted. When ju

13CHAPTER 3: InstallationPoint-to-PointWhen only two devices are connected to the line in a point-to-point application,each device should have the ter

14RS-232↔485/422 CONVERTERS3.2 DCE/DTE ConfigurationThis section contains block diagrams (Figures 2 and 4) and jumper and switchsettings (Tables 1 an

15CHAPTER 3: InstallationTable 1. DCE Jumper Settings.NOTEFor additional information on the jumper requirements, see Section 3.1.Function Jumper Requ

16RS-232↔485/422 CONVERTERSTable 1 (continued). DCE Jumper Settings.Function Jumper Requirements5. Enable RS-485 drivera. RS-485 driver enabled by RS

17CHAPTER 3: InstallationTable 1 (continued). DCE Jumper Settings.Function Jumper Requirements7. RS-485 interface terminatedor unterminated• Terminat

18RS-232↔485/422 CONVERTERSFigure 3. Line Bias. S2 shows the line termination when “Term” is selected. S3 shows line bias when “Bias” is selected.

1FCC AND IC RFI STATEMENTSFEDERAL COMMUNICATIONS COMMISSIONANDINDUSTRY CANADARADIO FREQUENCY INTERFERENCE STATEMENTSThis equipment generates, uses, an

19CHAPTER 3: InstallationFigure 4. Simplified Functional Block Diagram (DTE Operation).NOTEThe delay settings for W9 apply only to the CTS output of

20RS-232↔485/422 CONVERTERSTable 2. DTE Jumper Settings.NOTEFor additional information on the jumper requirements, see Section 3.1.Function Jumper Re

21CHAPTER 3: InstallationTable 2 (continued). DTE Jumper Settings.Function Jumper Requirementsb. RS-485 driver enabled by data W15 in B-C position an

22RS-232↔485/422 CONVERTERSTable 2 (continued). DTE Jumper Settings.Function Jumper Requirements9. RS-485 Interface Line Biased (Fail- S3 Off No line

23CHAPTER 3: InstallationFigure 5. Point-To-Point, 4-Wire (Full- or Half-Duplex).Figure 6. Point-to-Point, 2-Wire (Half-Duplex).

24RS-232↔485/422 CONVERTERSFigure 7 shows a typical multipoint, 4-wire, full- or half-duplex connection. Figure 8shows a typical multipoint, 2-wire, h

25CHAPTER 3: InstallationFigure 8. Multipoint, 2-Wire (Half-Duplex).Sample 4-Wire Multipoint ConfigurationIn the following application, an industrial

26RS-232↔485/422 CONVERTERSFigure 9. Sample Multipoint Operation.Installation Procedure for the Multipoint Application in Figure 91. Set all the RS-2

27CHAPTER 3: Installation7. Since all the remote PLC stations must be inactive until addressed, the RS-485driver of each remote RS-232↔485/422 Convert

28RS-232↔485/422 CONVERTERSAppendix A. PinningTable 3. RS-232 interface(* denotes pins that are used).Pin Circuit Description Signal Type Directionwhe

2RS-232↔485/422 CONVERTERSNORMAS OFICIALES MEXICANAS (NOM)ELECTRICAL SAFETY STATEMENTINSTRUCCIONES DE SEGURIDAD1. Todas las instrucciones de seguridad

29APPENDIX A: PinningTable 4. RS-485 pinning chart.Pin Name DescriptionTXA and TXB Data received by the RS-232↔485/422 Converter at the TXA=TX- RS-232

30RS-232↔485/422 CONVERTERSQuick Reference:User-Selectable OptionsUse this list as a quick-reference guide when you need to change the jumpersettings.

31QUICK REFERENCE: USER-SELECTABLE OPTIONSW16 Turnaround delay (When W8 is in the B-C [2 wire] position, thisis the time after the driver is disabled

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3NOM STATEMENT12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarizacióndel equipo no sea eliminada.13. Los cables de la fuen

4RS-232↔485/422 CONVERTERSTRADEMARKS USED IN THIS MANUALAny trademarks mentioned in this manual are acknowledged to be the property of thetrademark ow

5CONTENTSContentsChapter Page1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.

6RS-232↔485/422 CONVERTERS1. SpecificationsOptical Isolation: IC109A, IC109AE, IC109C onlyInterface: (1) asynchronous RS-232 port (DTE/DCE selectable)

7CHAPTER 1: SpecificationsTypical Speed Versus Distance (4-wire point-to-point 26-AWG twisted pair):Speed Distance1200 bps 4 miles (6.4 km)2400 bps 3

8RS-232↔485/422 CONVERTERS2. IntroductionThe RS-232↔485/422 Converter Plus is an RS-232-to-RS-485 interface converterthat operates in the same manner