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B&B Electronics 232BSS4 Appendix C Block Diagram, Master, Uart Uart, Microcontroller, 64KRAM

Models: Buffered Smart Switch 232BSS4

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Appendix C: Block Diagram

Appendix C: Block Diagram

							TD	PORT D 3 2 7 8 6 1 4 5
						UART	RD
							RTS
							CTS
					64KRAM		DSR
							DCD
							DTR
							GND
							TD
						UART UART	RD	PORT C PORT 3 2 7 8 6 1 4 5 3 2 7 8 6 1
							RTS
							CTS
							DSR
					Microcontroller		DCD
	MASTER	2 3 4 5 6 8 20 7	TD				DTR
			TD				GND
			RD	UART			GND
			RTS
			CTS				TD
			DSR				TD
			DSR				RD
			DCD				RD
			DCD				RTS
			DTR				RTS
			DTR				CTS
			GND				DSR
			GND				DCD
							DTR	B 4 5
							GND	B 4 5
							TD	PORT 3 2 7 8 61
						UART	RD
							RTS
							CTS
							DSR
							DCD
							DTR	A 4
							GND	A 4
							GND	5

232BSS4 Block Diagram

Documentation Number 232BSS42907 Manual

Appendix C

C-1

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104

B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445

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B&B Electronics 232BSS4, Buffered Smart Switch Appendix C Block Diagram, Master, Uart Uart, Microcontroller, 64KRAM

Contents

of domestic and imported parts by Buffered Smart SwitchModel 232BSS4 This product designed and manufactured in Ottawa, Illinois USAPage APPENDIX C BLOCK DIAGRAM Table of ContentsCHAPTER 4 SETUP SOFTWARE APPENDIX B CABLE CHARTSDocumentation Number 232BSS4-2907m Documentation Number 232BSS4-2907m Chapter 1 - IntroductionDefault Parameters Specifications3. 2 3.5 floppy disks Checklist1. RS-232 Buffered Smart Switch model 232BSS4 2. Instruction Manual The following equipment should be in the shipping cartonDocumentation Number 232BSS4-2907m LED Indicators Symbols and ConventionsChapter 2 OPERATION Port Configurations Description Smart Switch Only ModeOptions Command Explanation Command SummaryThree Character Command Format Four Character Command FormatCommands Select Port A to transmit and receive - “A” VB Example VB ExampleTable 2.2 Send Only and Clear Buffer Control Characters Table 2.3 - Timer Values commands and the Master can initiate the next communications sequence Description Auto Select/Smart Switch ModeOptions Inactivity Time Figure 2.1. Multiple Terminals to a Host Controller Using the 232BSS4 as a Buffered Splitter/CombinerFigure 2.2. Back to Back Operation Back to Back Operation mux/demuxFigure 2.3. Expanding the Number of Slave Ports Cascading Multiple SwitchesSlave Devices that Automatically Send their Data Slave Devices that Require Polling 25 Pin DCE Chapter 3 PORT CONNECTIONSDTE/DCE Explanation 25 Pin DTESlave Port Connections Master Port ConnectionsDocumentation Number 232BSS4-2907m Introduction Chapter 4 SETUP SOFTWAREConnection Double Click ADD/REMOVE PROGRAMS Software InstallationSoftware Uninstall Select SETTINGS, CONTROL PANEL from the Windows START menuSingle Unit Main Screen Setup Tutorial26Documentation Number 232BSS42907 Manual Back to Back Main Screen 28Documentation Number 232BSS42907 Manual Default Parameters Copying Parameters Between SwitchesDocumentation Number 232BSS42907 Manual ASCII Appendix A ASCII Character CodesDECIMAL to HEX to ASCII CONVERSION TABLE Documentation Number 232BSS42907 ManualDocumentation Number 232BSS42907 Manual Appendix AChart B.2. DTE PC DB9 Connector to Master Port Appendix B Cable ChartsPins 6, 8, & 20 looped back internally on the 232BSS4 Chart B.1. DTE PC DB25 Connector to Master PortAppendix B Cable Charts Pins 6, 8, & 20 looped back internally on the 232BSS4Documentation Number 232BSS42907 Manual Chart B.3. DCE Modem DB25 Connector to Master Port Pins 6, 8, & 20 looped back internally on the 232BSS4Chart B.4. DCE Modem DB9 Connector to Master Port Chart B.7. Ports A - D DTE to DCE Modem DB25 Connector Pins 1, 4, & 6 looped back internally on the 232BSS4Chart B.5. Ports A - D DTE to DTE PC DB25 Connector Chart B.6. Ports A - D DTE to DTE PC DB9 ConnectorChart B.8. Ports A - D DTE to DCE Modem DB9 Connector Pins 1, 4, & 6 looped back internally on the 232BSS4Pins 1, 4, & 6 looped back internally on the 232BSS4 Documentation Number 232BSS42907 Manual Appendix B Cable ChartsUART UART Appendix C Block DiagramMASTER UARTDocumentation Number 232BSS42907 Manual Appendix CDECLARATION OF CONFORMITY Appendix D Declaration of Conformity