B&B Electronics Switch 232XS5 User's Manual
Contents
1. COM 3 O3E8h COM 4 02E8h 16 232XS53800 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 The Baud Rate is the speed at which communication takes place between the PC and the Smart Switch It must be specified so that it is equal to SW1 positions 1 3 on the Smart Switch The Number of Data Bits is the length of each character that gets sent from the PC to the Smart Switch This value must be specified so that it is equal to SW1 position 4 on the Smart Switch The Module must be set so that it is equal to the Smart Switch Module which you are using i e PortMUX if you are using a PortMUX The User Defined Character must be set so that it is equal to SW2 on the Smart Switch 232XS2497 Manual 17 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 Appendix A ASCII Character Codes DECIMAL to HEX to ASCII CONVERSION TABLE SP 64 40 96 97 232XS2497 Manual A 1 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 Appendix Cable Charts All charts will indicate if the Master Port of the 232XS5 should be configured as a DCE port ora DTE port Refer to the Port Configuration section of the manual for information on Master Port configurations Chart 1 IBM PC DB25 Connec2. 57 6K Baud Xx X X 1152K Baud X x xo X 8 Data Bits IX X X 1 x Xx x Xx 7DataBits X O X X X Parity Disabed IX X X X 1 X X X PartyEnabed X x x x 0 x Expansion Address A x x x X 1 0 X Expansion AddresB X x x x 1 x Expansion Addresse X X X X X 1 1 X Expansion AddressD IXIX X X 10 DCE master pot 0 0FF 1 ON X DONTCARE FACTORY DEFAULT 232XS2497 Manual 3 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 Table 2 Mode Setup Jumper JP6 A B Jumper Installed Off Jumper Removed X DON T CARE FACTORY DEFAULT Port Configuration In order to determine the proper port configuration of the 232XS5 it is necessary to have a basic understanding of the terms DCE and DTE RS 232 was designed using DB 25 connectors for connecting a DTE Data Terminal Equipment device to a DCE Data Communication Equipment device Each device will have inputs on pins that correspond to outputs on the same pins of the other device For example a DTE device will transmit data out on pin 2 on a DB 25 and a DCE device will receive data in on pin 2 on a DB 25 IBM PCs and serial printers are DTE devices modems are DCE devices Originally the RS 232 standard specified only a 25 pin D sub connector Since then the use of a 9 pin D Sub supporting only a portion of t
3. Master Port B 1 Chart 2 IBM PC DB9 Connector to Master Port B 1 Chart Modem DB25 Connector to Master Port B 2 Chart 4 IBM PC DB25 Connector to Ports A DTE B 2 Chart 5 IBM PC DB25 Connector to Ports A E DCE B 3 Chart 6 IBM PC DB9 Connector to Ports A E DTE B 3 Chart 7 PC DB9 Connector to Ports A E DCE B 4 Chart 8 IBM PC DB25 Connector to Ports A E DCE B 4 Chart 9 IBM PC DB9 Connector to Ports A E DCE B 5 232X853800 Manual Table of Contents B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 Chapter 1 INTRODUCTION The RS 232 Five Port Expandable Smart Switch Model 232XS5 allows one RS 232 host device to connect to as many as five RS 232 devices The switch can be controlled in three different ways The first way is referred to as smart switch mode or code activated switch mode In this mode the switch is controlled by sending a programmable preamble code to the Master port of the 232XS5 The second way the switch can be controlled is referred to as port combiner mode In port combiner mode a slave port can gain access to the master port by asserting a handshake line If none of the slave ports have their handshake line asserted the switch can be controlled using the preamble code The third way the switch can be controlled is the exp
4. a connection from that port to the master port This works on first come first served basis If multiple ports have their RTS lines high the port that has been waiting the longest will be next to be connected to the master port For example initial conditions no slave ports with RTS lines asserted in chronological order Port C asserts its RTS line Port A asserts its RTS line Port D asserts its RTS line and then Port C disasserts its RTS line When Port C asserts its RTS line a connection will be made between the master port and Port C When Port C disasserts its RTS line Port C will be disconnected and Port A will be connected to the master port When Port A disasserts its RTS Port A will be disconnected and Port D will be connected to the master port For example port A is configured as a DTE port In order to establish a connection to the master port port A must set RTS high assert The 232XS5 would recognize this as a prompt for connection to the master port The connection would be dropped as soon as RTS on port A is brought low Ports B E may raise RTS at any time to request a connection However if port A is connected to the master port any data sent from the devices on ports B E to the 232XS5 will be lost The 232XS5 does not have any buffering 232XS2497 Manual 9 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 NOTE When is selected via the Master Port the
5. information on preventing command codes from being received by slave devices refer to the Enhance Mode section NOTE There is no delay through the Smart Switch and the data is not buffered 232XS2497 Manual 7 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 Programming the Second Character The second character comes programmed as the ASCII STX character decimal 2 You can change this to any 8 bit character you wish by reprogramming dipswitch SW2 SW2 is an eight position switch with each position equal to a certain weight Refer to Setup for instructions on removing the cover to access SW2 Table 6 shows the weight chart for SW2 Table 6 Programmable Character Setting Dipswitch SW2 WEIGHT Pee xe Mes ts Factory Default ASCII STX character decimal 2 SW2 position 2 is only one ON If you wish to use the letter U as the second character which has a decimal value of 85 you would turn on switches 1 3 5 and 7 1 4 16 64 85 Caution should be used when selecting the second character so that by itself or with the ESC character in front of it it is not a valid command to any of the devices on the port For instance on some printers ESC is the reset command If you tried to use the symbol decimal 64 for the second character you could reset your printer every time the preamble code was sent Note also that if your communicati
6. whether the time set by the Set Timer Value command will be used to determine the time out of an inactive port or the length of time switching commands are ignored The third byte of the Set Timer Mode command is an ASCII M If the data byte fourth byte is an ASCII 0 zero default the timer will be setup as an inactivity timer For example sending the following string to the 232XS5 will set up the timer as an inactivity timer assuming programmable character is the factory default of 2 SetTM CHR 27 CHR 2 M 0 The M tells the 232XS5 it is the set timer mode command and the 0 indicates to set up the timer as an inactivity timer When the timer is configured as an inactivity timer the 232XS5 will monitor the data lines TD amp RD for data If there is no activity for the specified timer value the slave port that is connected to the master port will be disconnected In smart switch mode the inactivity timer can be used to prevent the preamble codes from being received by the slave devices In port combiner mode the inactivity timer can be used to prevent devices from tying up the master port For example port combiner mode all the slave ports have their handshake lines asserted The device on Port C has its handshake line asserted and is currently connected to the master port but has not been transmitting or receiving data When the inactivity timer expires Port C will be disconnected and the next sla
7. Expansion Switch unit address A is the last Switch in the chain Expander mode is selected when jumper JP6 B is OFF removed In Expander mode the 232XS5 is constantly looking for a four character preamble code by monitoring the data that is being received on the master port from the host device The 232XS5 requires a four character preamble code to turn on and off a port The first character must be the ASCII escape character decimal 27 The second character is user programmable by setting dipswitch SW2 SW2 comes from the factory programmed to the ASCII character STX decimal 2 The third character is the Expansion Switch Unit Address character A through D The fourth character should be the ASCII upper case letters A B C D or E decimal 65 66 67 68 or 69 respectively to select those ports To turn off the selected port the third character should be the ASCII EOT character decimal 4 For instance to turn on port B of Expansion Switch unit address C you would send ESC STXCB If you were writing a program in BASIC to control the Smart Switch you would form a string like this SWB CHR 27 CHR 2 C B 232XS2497 Manual 13 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 You could then send SWB to select port B of Expansion switch unit address Similar strings could be used for turning on the other ports To turn off
8. Five Port Expandable Smart Switch Model 232XS5 Document No 232XS53800 This product designed and manufactured in Ottawa Illinois USA of domestic and imported parts by i electronics MANUFACTURING COMPANY International Headquarters B amp B Electronics Mfg Co Inc 707 Dayton Road P O Box 1040 Ottawa IL 61350 USA Phone 815 433 5100 General Fax 815 433 5105 Home Page www bb elec com Orders e mail orders bb elec com Fax 815 433 5109 Technical Support e mail support bb elec com Fax 815 433 5104 European Headquarters B amp B Electronics Ltd Westlink Commercial Park Oranmore Co Galway Ireland Phone 353 91 92444 Fax 353 91 92445 Internet www bb europe com 1997 B amp B Electronics Revised October 2000 232XS53800 Manual Cover Page B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 2000 B amp B Electronics No part of this publication may be reproduced or transmitted in any form or by any means electronic or mechanical including photography recording or any information storage and retrieval system without written consent Information in this manual is subject to change without notice and does not represent a commitment on the part of B amp B Electronics B amp B Electronics shall not be liable for incidental or consequential damages resulting from the furnishing performance or use of this manual All brand names used in this manual a
9. RTS lines will be ignored until the Master Port sends the turn off code When the Master Port is selected by RTS all preamble codes will be ignored The port combiner function is not available with the Master Port configured as a DCE or in expansion mode A typical application would be to have RTS and CTS tied together on the master port When RTS on port A is asserted CTS on port A will be asserted when a connection is established If a port is not connected to the master port then CTS on that port will remain low Therefore a port can monitor the handshake line to determine if a connection has been established Enhanced Timer Mode Timer Features The 232XS5 has an enhanced mode which offers special timer features The timer features can be used to prevent slave devices from receiving preamble commands inadvertent switching from binary graphic file transfers and inactive slave devices from holding control of the master port The timer has two different modes an inactivity mode and an inadvertent switch mode When in inactivity mode the 232XS5 will monitor the data lines If there is no activity for the specified time the selected slave port will be disconnected from the master port When in inadvertent switch mode the 232XS5 will ignore switching commands for the specified period of time After this time has expired the selected slave port will be disconnected from the master port The timer functions are enabled via a jumper sett
10. Serial Port Signal Ports A E DCE DB25 Connector Direction DB9 Connector t e cg y O Pins are tied together inside the 232XS5 they are not connected to the master port Chart 6 IBM PC DB9 Connector to Ports A E DTE Master port configured as a DCE port IBM PC 232XS5 Serial Port Signal Ports A E DTE DB9 Connector Direction DB9 Connector 4cu erect Wu Pins are tied together inside the 232 55 they are not connected to the master port 232XS53800 Manual Appendix B B 3 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 Chart 7 IBM DB9 Connector to Ports A E DCE Master port configured as a DTE port IBM PC 232XS5 Serial Port Signal Ports A DCE DB9 Connector Direction DB9 Connector p e O Pins are tied together inside the 232XS5 they are not connected to the master port Chart 8 IBM PC DB25 Connector to Ports A E DCE Master port configured as a DTE port with a modem connected see Chart 3 IBM PC 232XS5 Serial Port Signal Ports A E DCE DB25 Connector Direction DB9 Connector oM Pins are tied together inside the 232XS5 they are not connected to the master port B 4 Appendix B 232XS53800 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 Chart 9 IBM PC DB9 Connector to Ports A E DCE Master port configured as a DTE port with a modem connecte
11. The following equipment should be in the shipping carton 1 RS 232 Smart Switch 2 Instruction Manual 3 1 3 5 floppy disk If any of the items above are not in the shipping carton contact the shipper immediately Specifications Model 232XS5 Size 3 0 w x 5 5 x 1 0 h Power 12Vdc to 16Vdc 9 100ma 2 232XS53800 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 Chapter 2 SETUP The 232XS5 is set up using an eight position dipswitch and a three position set of jumpers This dipswitch is used to set the communication format port configuration and expansion switch address The jumpers are used to set the smart switch port combiner mode to enable disable the enhanced features and to enable disable Expander mode To change the settings on the switch remove the power from the unit and remove the screws 4 from the bottom of the 232XS5 The dipswitch is located on the top of the PC board side with LED s and is labeled SW1 The other dipswitch labeled SW is used to set the second character of the preamble After the switches and jumpers have been set to match your requirements you can put the unit back together Table 1 shows the settings for dipswitch SW1 and Table 2 shows the mode settings for JP6 jumpers Table 1 Communication amp Port Setup Dipswitch SW1 8 0 o 1 X x x LO 19 2K Baud 38 4K Baud X X X
12. ander mode in which up to four switches can be cascaded together to form up to 17 slave ports The master port can be configured as a DTE or DCE port by an internal switch setting If the master port is configured as a DTE port the five slave ports will become DCE ports The 232XS5 supports the following signals TD RD RTS CTS DSR DTR and DCD The 232XS5 has an enhanced timer mode which offers special timer features The timer features can be used to prevent slave devices from receiving preamble commands inadvertently switching from binary graphic file transfers and inactive slave devices from holding control of the master port The 232XS5 will work with baud rates from 1200 to 115 2K bps 7 or 8 data bits even odd or no parity and 1 or 2 stop bits 7 N 1 is not allowed NOTE The data format and rates mentioned are used to switch the 232XS5 The communication between the devices can use any format or data rate 232XS2497 Manual 1 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 There are five LED s on the 232XS5 to indicate which port is connected to the master port The master port has a DB 9S female connector and the slave ports have DB 9P male connectors The 232XS5 requires 12Vdc at 100ma which is provided through a 2 5mm power jack Checklist Examine the shipping carton and contents for physical damage If damage is found file a claim with the shipper immediately
13. ands will be accepted As long as the file transfer takes less than 5 seconds there is no chance the 232XS5 will inadvertently switch ports Table 8 232XS5 Smart Switch Mode Commands Command Characters Function 1st 2nd 3rd 4th Comments ESC X Switching Command NU Set Timer Value Enhanced Mode Set Timer Mode Enhanced Mode X represents the programmable character set by dipswitch SW2 NU Not Used NU Switching Command T o o 59351 12 232XS53800 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 Expansion Mode Expansion Expansion Expansion Port Slave Slave Slave Slave Slave Slave Slave Slave Port Pot Port Port Port Port Port Port us E D E D E D as er___ AddressD C Address AddressB Address AC Ba A B A B A B A B Slave Slave Slave Slave Slave Slave Slave Slave Port Port Port Port Port Port Port Port 17 Port Cascaded Expansion Mode The number of serial ports on the 232XS5 can easily be expanded to a maximum of seventeen ports Up to four 2832XS5 units may be cascaded in expander mode Each unit address adds four additional serial ports to the five on unit address A Port C is used as the expansion port that connects to the follow on master port for switch units addressed B thru D
14. art the Smart Switch software to reset the connection Default Values When you start Smart Switch software the default values will be used The default values are Default Value Port Address COM 1 Baud Rate 9600 Data Bits 8 Data Bits Second Character 2 STX CTRL B Selecting Ports To select a port the user need only pick from the Menu gt Comport the comport to which the device is attached The Smart Switch program supports comports 1 through 6 If the port exists but does not have a smart switch device attached SS will not detect it The SS software will only detect invalid undefined comports Parameters The Port Address is the address where the serial communications port is located If this is unknown you can use the program PORTFIND EXE which is located on the disk To use PORTFIND EXE If you installed the software on your hard drive see the Installation section Type and press the ENTER key e Type CD SS UTIL and press the ENTER key Type PORTFIND and press the ENTER key The result will be similar to the following PortFind V1 03 1991 B amp B Electronics All Rights Reserved Slave 8259 present can t use shared IRQ2 COM at address 03F8h is set for IRQ4 and is a 8250A 16450 type UART at address 02F8h is set for IRQ3 and is a 8250A 16450 type UART LPT1 at address 0378h found Some of the typical port addresses are as follows Port Address COM 1 O3F8h COM 2 02F8h
15. d see Chart 3 IBM PC 232XS5 Serial Port Signal Ports A E DCE DB9 Connector Direction DB9 Connector 8 e Pins are tied together inside the 232XS5 they are not connected to the master port 232XS53800 Manual Appendix B B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 B 5
16. ee section titled Port Configuration Refer to Table 1 Always power down the smart switch when changing switch settings RS 485 Support RS 485 support may be provided by adding a Model 485SD9TB RS 232 to RS 485 converter or other recommended device to the slave ports of the 232XS5 Port power of about 30 mA may be applied through the DTR line Pin 4 of the slave ports with jumper JP1 JP5 Normally the jumpers are set to allow DTR to pass from the master port To enable port power on a slave port move the jumper from the OFF to ON position on the corresponding JP jumper To allow DTR to pass from the master port to the slave port move jumper from ON to OFF on the corresponding JP jumper DTR can only pass through when the port is selected and the jumper is set to the OFF position on the corresponding slave port JP jumper Table 5 Port Power Jumpers Jumper JP1 5 DTR passed FACTORY DEFAULT 6 232XS53800 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 Chapter 3 Smart Switch Operation Smart Switch mode is selected when jumper JP6 B is ON installed In Smart Switch mode the 232XS5 is constantly looking for the three character preamble code by monitoring the data that is being received on the master port from the host device The 232XS5 requires a three character preamble code to turn on and off aport The first characte
17. he original RS 232 signals has been used extensively starting with the IBM PC and migrating into other peripherals The pinouts for this 9 pin connector have since become the EIA TIA 574 standard This standard specifies a DTE device that transmits on pin 3 and receives on pin 2 with the DCE having the opposite configuration If an IBM PC compatible DTE device is going to be connected to the 232XS5 master port the master port should be configured as a DCE port If a modem DCE device is going to be connected to the master port it should be configured as a DTE port The master port can be configured as a DCE port data received on pin 3 or a DTE port data received on pin 2 by setting dipswitch SW1 position 8 To configure the master port as a DCE port move dipswitch 5 1 position 8 to the OFF position When the master port is configured as a DCE port ports A B C D amp E will become DTE ports Refer to Table 3 To configure the master port as a DTE port move dipswitch SW1 position 8 to the ON position When the master port is configured as a DTE port ports A B C D amp E will become DCE ports Refer to Table 4 Always power down the smart switch when changing switch settings 4 232XS53800 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 Table 3 DCE MASTER PORT CHART Master Port A B C D amp E Port DCE Signal DTE Pin Direction Desc
18. ing and through software commands Jumper JP6 A must be OFF removed for the 232XS5 to be in enhanced mode The software commands follow the same format as preamble codes used for switching There are two commands that must be sent to the 232XS5 to set the timer functions Set Timer Value and Set Timer Mode These commands require an additional byte for data The Set Timer Value command requires the third byte to be an ASCII T character The data byte fourth byte must be a value between ASCII 0 and ASCII 9 A value of 0 is used to disable the timer The time set by the Set Timer Value command determines the length of time the 232XS5 wll wait before disconnecting an inactive port or the length of time it will ignore switching commands from the master Refer to Table 7 for timer values For example sending the following string to the 232XS5 will set the timer value to 5 seconds assuming programmable character is the factory default of 2 10 232XS53800 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 SetTV CHR 27 CHR 2 T 6 The T tells the 232XS5 it is the set timer value command and the 6 indicates which timer value to use Table 7 Timer Values Data Byte O timer disabled 10ms 2 25ms 3 100ms 4 500ms 9 1 6 5s 8 imi 9 5min The Set Timer Mode command tells the 232XS5
19. ograms e Click on the Install button e Follow the instructions of the setup program Method Two e Place the disk in drive A Select Programs from the Start Button and click on Windows Explorer Click on the drive containing the SS Setup Disk Double click on the file Setup exe Follow the instructions of the setup program The following file will be located on your hard drive e SS EXE The executable file for the Smart Switch e FILES LST Contains a list and description of files installed on your hard drive e READ ME Contains corrections and additions to the printed users manual e HISTORY LST Contains a historic description of the product Setup The Smart Switch program will prompt the user for the Module that is in use the first time that the software is run After the proper Module i e PortMUX 232XS5 etc is selected then a window specific to that Module will appear and the user may personalize communication parameters as per their specific needs Comport Baud Rate and Data Bits Character Mode and User Defined Character may also be set for 282XSS and 232XS5 Modules 232XS2497 Manual 15 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 Should the user wish to change the Module choice to another there is a Module menu choice with the three support Module types PortMUX 232XSS and 232XS5 After changing the Module the user will be prompted to rest
20. on configuration is set for 7 data bits you cannot use the eighth bit of SW2 For a list of the ASCII character codes and their decimal values refer to Appendix A Binary File Transfer A simple method of using the Smart Switch to transfer binary files without the concern of it accidentally disconnecting is to set the file transfer at a baud rate different from the baud rate of the Smart Switch When transferring files at a different baud rate the Smart Switch will stay connected from the last preamble code 8 232XS53800 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 Smart Switch Port Combiner Mode Preamble code controls access to slave Handshake line of any slave ports if slave handshake line is not asserted sjaye Slave port controls access to master Port Port ied E D Slave Port C Port A B Slave Slave Port Port Port Combiner Mode With the 232XS5 set up with a DTE master port this mode allows Slave Ports A E to select the master port using the RTS input line It also still allows selection from the master port via the preamble code described in the Smart Switch Only Mode section Jumper JP6 C must be OFF removed to be in port combiner mode Port combiner mode is not accessible when the unit is set up as a port expander so JP6 B must be ON installed When RTS goes high on any of the five slave ports it will establish
21. r must be the ASCII escape character decimal 27 The second character is user programmable by setting dipswitch SW2 SW2 comes from the factory programmed to the ASCII character STX decimal 2 The third character should be the ASCII upper case letters A B C D or E decimal 65 66 67 68 or 69 respectively to select those ports To turn off the selected port the third character should be the ASCII EOT character decimal 4 The ASCII characters and their equivalent decimal values are listed in Appendix A Example To turn on port B you would send the three ASCII characters ESC STX B If you were writing a program in BASIC to control the Smart Switch you would form a string like this SWB CHR 27 CHR 2 B You could then send SWB to select port B Similar strings could be used for turning on the other ports To turn off the ports the string might look like this TOFF CHR 27 CHR 2 CHR 4 When you are done with a port you can either select a new one directly or turn off the selected port and then turn on the next one We recommend that you turn off the selected port before selecting the next one The turn off command consists of three characters that are nonprinting ESC STX EOT If port A is selected and you send the command to select port B all three characters ESC STX B will pass through the A port since it is still selected and the letter B will show up on your port A device For
22. re the registered trademarks of their respective owners The use of trademarks or other designations in this publication is for reference purposes only and does not constitute an endorsement by the trademark holder TABLE OF CONTENTS Chapter 1 INTRODUCTION eene 1 Checklist PR 2 Specifications euet ede ae e dpud 2 Ch pter 2 SETUP nore cente csse ieu 3 Port Configuration ener 4 Serial Data Configuration sese 6 RS 485 SUppoOlt iie courte ener XH EE ERE 6 Chapter 3 Smart Switch Operation 7 Programming the Second 8 Binary File Transfer erede nnne 8 Smart Switch Port Combiner Mode 9 Enhanced Timer Mode Timer Features 10 Expansion Mode sese enne 13 Chapter 4 SOFTWARE 15 IntrOCUCtlOrn uo eae DR 15 Installation 0 dete ut eb a E CR 15 Setups co ied teet ite Pt reb 15 Default Values eem Rete 16 Selecting PONS siratin eresia ae nnns 16 Paramieters iui edet erai vitu uas 16 Appendix A ASCII Character Codes 1 Appendix B Cable Charts eese B 1 Chart 1 IBM PC DB25 Connector to
23. ription Pin Direction Transmit Data TD Receive Data RD 8 Output Clear to Send CTS 8 Input 6 Output _ Data Set Ready DSR 6 Input EIE Signal Ground SG Table 4 DTE MASTER PORT CHART Master Port A B C D amp E Port DTE Signal DCE Direction Description Pin Direction Transmit Data TD Receive Data RD Request to Send RTS Clear to Send CTS 8 Output 8 4 Output Data Terminal Ready DTR 4 Input 6 Input Data Set Ready DSR 6 Output 1 1 Input Data Carrier Detect DCD Output The 232XS5 supports the following RS 232 signals TD RD SG RTS CTS DCD DSR and DTR NOTE All other lines are not connected The Smart Switch selects port A as the default port at power up 232XS2497 Manual 5 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 Serial Data Configuration In order for the host device that is connected to the master port to select any of the five ports the Smart Switch must be set to match the host s communication format Dipswitch SW1 is used to select the communication format of the Smart Switch Switch positions 1 through 3 select the baud rate Switch position 4 selects 7 or 8 data bits Switch position 5 determines if parity is enabled or disabled NOTE A data format of 7 data bits no parity and one stop is not allowed Switch position 8 selects the port configuration s
24. the ports the string might look like this TOFF CHR 27 CHR 2 CHR 4 When you are done with a port you can either select a new one directly or turn off the selected port and then turn on the next one For information on preventing command codes from being received by slave devices refer to the Enhanced Mode section Table 9 232XS5 Expander Mode Commands Command Characters Function 1st 2nd 3rd 4th Comments Select Port A Address SeectPotB Esc X a B Address A Address D Address A X represents the programmable character set by dipswitch SW2 NU Not Used Port C is used as the expansion port for unit addresses B thru D 14 232XS53800 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 Chapter 4 SOFTWARE Introduction The Smart Switch software allows the user to change Smart Switch ports on three different modules 232XSS 232XS5 PortMUX The Smart Switch software is designed as diagnostic software for the above modules It will allow you a Module by Module connection to the individual port Installation The software for the Smart Switch is designed to be run in any Windows environment To install it on your hard drive follow these steps Method One e Place the disk in drive A e Select Settings from the Start Button and click on Control Panel e Inthe Control Panel Window double click on the Add Remove Pr
25. tor to Master Port IBM PC 232XS5 Serial Port Signal Master Port DCE DB25 Connector Direction DB9 Connector Pins are tied together inside the 232XS5 they are not connected to ports A B C D or E Chart 2 IBM PC DB9 Connector to Master Port IBM PC 232XS5 Serial Port Signal Master Port DCE DB9 Connector Direction DB9 Connector Pins are tied together inside the 232XS5 they are not connected to ports A B C D or E 232XS53800 Manual Appendix B B 1 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 Chart 3 Modem DB25 Connector to Master Port Async Modem 232XS5 Serial Port Signal Masier Port DTE DB25 Connector Direction DB9 Connector Pins are tied together inside the 232 55 they are not connected to ports A B C D or E NOTE When connecting a DTE device to ports A B C D or E of the smart switch refer to Charts 8 and 9 Chart 4 IBM PC DB25 Connector to Ports A E DTE Master port configured as a DCE port IBM PC 232XS5 Serial Port Signal Ports A E DTE DB25 Connector Direction DB9 Connector 7255 ee Pins are tied together inside the 232XS5 they are not connected to the master port B 2 Appendix B 232XS53800 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 Chart 5 IBM PC DB25 Connector to Ports A E DCE Master port configured as a DTE port IBM PC 232XS5
26. ve port will then be connected to the master port following the first come first served rule Port C will then be placed at the end of the line 232XS2497 Manual 11 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5109 If the data byte of the Set Timer Mode command is an ASCII 1 the timer will be setup to ignore switching commands Sending the following string to the 232XS5 will set up the timer to ignore switching commands Assuming programmable character is the factory default of 2 SetTM CHR 27 CHR 2 M 1 The M tells the 232XS5 it is the set timer mode command and the 1 indicates to set up the timer to ignore switching commands When the timer is configured in this mode the 232XS5 will not accept any switching commands B C D E or EOT for the specified timer value After the timer has expired the slave port that is connected to the master port will be disconnected This feature is useful to prevent inadvertent switching during binary graphic type file transfers For example smart switch mode the timer is configured to ignore switching commands for 5 seconds The select Port D command is sent to the 282XS5 Once Port D is connected a file of unknown data type so file may or may not contain a switching command sequence is to be transferred through the 232XS5 For a period of 5 seconds after Port D is connected no switching comm
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