Contents
 Buffered Smart Switch
Model 232BSS4
This product designed and manufactured in Ottawa, Illinois USA
of domestic and imported parts by
Page
 Table of Contents
CHAPTER 4 SETUP SOFTWARE
APPENDIX B CABLE CHARTS
APPENDIX C BLOCK DIAGRAM
 Documentation Number  232BSS4-2907m
 Chapter 1 - Introduction
Documentation Number  232BSS4-2907m
 Specifications
Default Parameters
 Checklist
1. RS-232 Buffered Smart Switch model 232BSS4 2. Instruction Manual
The following equipment should be in the shipping carton
3. 2 3.5 floppy disks
 Documentation Number  232BSS4-2907m
 Chapter 2 OPERATION
Symbols and Conventions
LED Indicators
 Port Configurations
 Options
Smart Switch Only Mode
Description
 Command Summary
Three Character Command Format
Four Character Command Format
Command Explanation
 Commands Select Port A to transmit and receive - “A”
 VB Example
 Table 2.2 Send Only and Clear Buffer Control Characters
 Table 2.3 - Timer Values
 commands and the Master can initiate the next communications sequence
 Auto Select/Smart Switch Mode
 Inactivity Time
 Using the 232BSS4 as a Buffered Splitter/Combiner
Figure 2.1. Multiple Terminals to a Host Controller
 Back to Back Operation mux/demux
Figure 2.2. Back to Back Operation
 Cascading Multiple Switches
Figure 2.3. Expanding the Number of Slave Ports
 Slave Devices that Automatically Send their Data
 Slave Devices that Require Polling
 Chapter 3 PORT CONNECTIONS
DTE/DCE Explanation
25 Pin DTE
25 Pin DCE
 Master Port Connections
Slave Port Connections
 Connection
Chapter 4 SETUP SOFTWARE
Introduction
 Software Installation
Software Uninstall
Select SETTINGS, CONTROL PANEL from the Windows START menu
Double Click ADD/REMOVE PROGRAMS
 Setup Tutorial
Single Unit Main Screen
 26Documentation Number 232BSS42907 Manual
 Back to Back Main Screen
 28Documentation Number 232BSS42907 Manual
 Copying Parameters Between Switches
Default Parameters
 Documentation Number 232BSS42907 Manual
 ASCII
Appendix A ASCII Character Codes
DECIMAL to HEX to ASCII CONVERSION TABLE
 Appendix A
 Appendix B Cable Charts
Pins 6, 8, & 20 looped back internally on the 232BSS4
Chart B.1. DTE PC DB25 Connector to Master Port
Chart B.2. DTE PC DB9 Connector to Master Port
 Appendix B Cable Charts
 Chart B.4. DCE Modem DB9 Connector to Master Port
Pins 6, 8, & 20 looped back internally on the 232BSS4
Chart B.3. DCE Modem DB25 Connector to Master Port
 Pins 1, 4, & 6 looped back internally on the 232BSS4
Chart B.5. Ports A - D DTE to DTE PC DB25 Connector
Chart B.6. Ports A - D DTE to DTE PC DB9 Connector
Chart B.7. Ports A - D DTE to DCE Modem DB25 Connector
 Pins 1, 4, & 6 looped back internally on the 232BSS4
Chart B.8. Ports A - D DTE to DCE Modem DB9 Connector
 Appendix B Cable Charts
 Appendix C Block Diagram
MASTER
UART
UART UART
 Appendix C
 Appendix D Declaration of Conformity
DECLARATION OF CONFORMITY