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Black Box IC109A, IC109C, IC108A Layout of the Printed Circuit Board, RS-232↔485/422 CONVERTERS

Models: IC109AE IC109A-R2 IC109C IC108C IC109A RS-232485/422 Converter Plus, RS-232485/422 Opto-Isolator/Converter IC108A IC108AE

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Figure 1. Layout of the Printed Circuit Board.

RS-232↔485/422 CONVERTERS

NOTE

When the jumper W9 (CTS) is in the ON position and jumper W15 is in the A-B position, the RS-485 driver is always turned on to enable transmission of data. Therefore, half-duplex transmission cannot be performed. See Section 3.1.5 for an explanation of the RS-485 driver.

Figure 1. Layout of the Printed Circuit Board.

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Black Box IC109C, IC108A, IC109AE, IC109A-R2, IC108C manual Layout of the Printed Circuit Board, RS-232↔485/422 CONVERTERS

Contents

CONVERTER RS-232↔485/422 Converter Plus RS-232↔485/422 Opto-Isolator/ConverterAPRIL IC108A IC109A IC108C IC109A-R2 IC108AE IC109C IC109AE 232↔485/422FCC AND IC RFI STATEMENTS FEDERAL COMMUNICATIONS COMMISSION AND INDUSTRY CANADARADIO FREQUENCY INTERFERENCE STATEMENTS INSTRUCCIONES DE SEGURIDAD NORMAS OFICIALES MEXICANAS NOM ELECTRICAL SAFETY STATEMENTRS-232↔485/422 CONVERTERS NOM STATEMENT RS-232↔485/422 CONVERTERS TRADEMARKS USED IN THIS MANUALChapter ContentsCONTENTS RS-232↔485/422 CONVERTERS 1. SpecificationsDistance CHAPTER 1 SpecificationsSpeed RS-232↔485/422 CONVERTERS 2. IntroductionCHAPTER 3 Installation 3. Installation3.1 Jumper and Switch Configuration RS-232↔485/422 CONVERTERS Figure 1. Layout of the Printed Circuit BoardRS-232↔485/422 Converter as DCE XW1A 8-Position Shunt 3.1.5 RS-485 DRIVER ENABLE W15Driver Enabled by RS-232 Control Leads 3.1.4 CTS DELAY W9 JUMPER3.1.6 HALF-DUPLEX TURNAROUND DELAY Driver Enabled by DataDriver Constantly Enabled 4 Wire Only RS-232↔485/422 CONVERTERSLoopback Point-to-PointMultipoint NormalRS-232↔485/422 CONVERTERS 3.2 DCE/DTE ConfigurationFigure 2. Simplified Functional Block Diagram DCE Operation CHAPTER 3 Installation Table 1. DCE Jumper SettingsFunction Jumper RequirementsJumper Requirements Table 1 continued. DCE Jumper SettingsRS-232↔485/422 CONVERTERS FunctionJumper Requirements Table 1 continued. DCE Jumper SettingsCHAPTER 3 Installation FunctionRS-232↔485/422 CONVERTERS “Term” is selected. S3 shows line bias when “Bias” is selectedFigure 3. Line Bias. S2 shows the line termination when Opto-isolated barrier in IC109 models Figure 4. Simplified Functional Block Diagram DTE OperationCHAPTER 3 Installation Jumper Requirements Table 2. DTE Jumper SettingsRS-232↔485/422 CONVERTERS FunctionJumper Requirements Table 2 continued. DTE Jumper SettingsCHAPTER 3 Installation FunctionFunction 3.3 Typical ApplicationsTable 2 continued. DTE Jumper Settings RS-232↔485/422 CONVERTERSCHAPTER 3 Installation Figure 5. Point-To-Point, 4-Wire Full- or Half-DuplexFigure 6. Point-to-Point, 2-Wire Half-Duplex RS-232↔485/422 CONVERTERS Figure 7. Multipoint, 4-Wire Half- or Full-DuplexCHAPTER 3 Installation Figure 8. Multipoint, 2-Wire Half-DuplexSample 4-Wire Multipoint Configuration RS-232↔485/422 CONVERTERS Installation Procedure for the Multipoint Application in FigureFigure 9. Sample Multipoint Operation RS-485 driver to be enabled via the RS-232 control lead CHAPTER 3 InstallationDescription when configured asTable 3. RS-232 interface denotes pins that are used Appendix A. PinningAPPENDIX A Pinning Table 4. RS-485 pinning chartPin Name DescriptionRS-232↔485/422 CONVERTERS Quick Reference User-Selectable OptionsXW1A XW1BQUICK REFERENCE USER-SELECTABLE OPTIONS 1000 Park Drive Lawrence, PA 15055-1018 724-746-5500 Fax Copyright 2002. Black Box Corporation. All rights reserved