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The BayTech Model 24SII Data Exchange System (DES) is a high
performance peripheral sharing solution offering versatile and flexible
connectivity between computers and various peripheral devices. 
Computers may share plotters, modems, and laser printers, as well as
access other computers to share data bases and transfer files.  Cost
effectiveness is thus achieved through resource sharing among
multiple users.

Figure 1

 below shows a Model 24SII DES with twenty-four ports

installed.  This application shows eight local PCs, a remote PC using
the BayTech Tran-x LPT-460 high speed parallel/serial converter, and
a file server from a LAN sharing a plotter, HP LaserJet Series II
printer, HP Laserjet Series IIISI printer, and a BayTech BX2448 2400
bps modem.

Figure 1

Summary of Contents for 24SII

Page 1: ...OWNER S MANUAL MODEL 24SII DATA EXCHANGE SYSTEM Rev 2 00 BayTech publication U140E084 01 ...

Page 2: ...llation please contact a BayTech applications engineer for assistance toll free at 1 800 523 2702 BayTech also manufactures data communications devices that provide port sharing and expansion networking port contention buffered and non buffered printer sharing modems and multiplexers If you would like information on any of these models please contact BayTech Customer Service A brief description of...

Page 3: ...T IBM PC XT are products and registered trademarks of International Business Machines Corporation Hewlett Packard LaserJet and Draftmaster I Plotter are products and registered trademarks of the Hewlett Packard Company WordPerfect is a product of WordPerfect Inc WordStar is a registered trademark of MicroPro International Corp Windows is a registered trademark of Microsoft Corp All products or com...

Page 4: ...ARIES 14 4 5 FACTORY DEFAULT CONFIGURATION 15 4 6 CONFIGURATION PROCEDURE 16 4 7 PC SET UP 23 5 CABLING 25 5 1 PARALLEL PORTS 25 5 2 I O MODULES M24SII V01 AND M24SII V03 EIA 232 SERIAL PORTS WITH DB 25 MALE DTE CONNECTORS 27 5 3 I O MODULE M24SII V04 EIA 232 SERIAL PORTS WITH DB 25 FEMALE DCE CONNECTORS 30 5 4 I O MODULE M24SII V06A EIA 232 SERIAL PORTS WITH RJ 45 MODULAR CONNECTORS 33 ...

Page 5: ...HARING MODE 39 5 5 2 3 EIA 422 PORTS USING BIDIRECTIONAL PRINTER SHARING MODE 41 5 5 2 4 EIA 422 PORTS USING UNIDIRECTIONAL PRINTER SHARING MODE 42 6 USER PROGRAMMABLE FEATURES 46 6 1 PORT LOGICAL NAME 46 6 2 PORT DESIGNATION 46 6 3 NUMBER OF PRINTERS M24SII V02 HIGH SPEED PARALLEL MODULE ONLY 47 6 4 PORT SELECT CODE 47 6 5 PORT SELECT MODE 48 6 6 SERIAL PORT CONFIGURATION 49 6 7 INPUT INACTIVITY ...

Page 6: ...7 7 2 1 INITIATING A COMPUTER TO COMPUTER CONNECTION 57 7 2 2 FILE TRANSFER 58 7 2 3 MODEM SHARING 59 7 3 DATA FLOW CONTROL 61 7 3 1 HARDWARE HANDSHAKING 61 7 3 2 XON XOFF HANDSHAKING 62 7 4 APPLICATION NOTE 64 7 5 HP 3000 OPTION 65 8 CONFIGURATION 66 8 1 MAIN CONFIGURATION MENU 69 8 2 STATUS 71 8 3 PROGRAM PORT LOGICAL NAME 73 8 4 SET PORT DESIGNATION 75 8 5 SET NUMBER OF PRINTERS M24SII V02 HIGH...

Page 7: ... MESSAGE 90 8 13 SELECT PRINT SCHEDULE FOR I D PAGE 92 8 14 PROGRAM DEFAULT PRINTER ASSIGNMENT 94 8 15 PROGRAM MODULE PRINTER SHARING MODE 96 8 16 EXIT 96 9 MAINTENANCE 97 10 REPACKING FOR SHIPPING 97 11 TECHNICAL SUPPORT 98 12 FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFACE STATEMENT 99 ...

Page 8: ...RONICS PRINTER 106 A 5 MODULAR CABLING USING M24SII V06A I O MODULE 107 A 6 M24SII V07 I O MODULE EIA 422 EIA 232 PROTOCOL SELECTION 110 A 7 MODULAR CABLING USING M24SII V07 I O MODULE 111 A 7 1 RJ 45 8 WIRE CABLING 111 A 7 2 RJ 11 4 WIRE CABLING USING EIA 232 PROTOCOL AND BIDIRECTIONAL PRINTER SHARING MODE 112 A 7 3 RJ 11 4 WIRE CABLING USING EIA 232 PROTOCOL AND UNIDIRECTIONAL PRINTER SHARING MO...

Page 9: ...EPROM UPGRADE 125 C 4 MODEL 24SII MEMORY MODULE EPROM UPGRADE 126 C 5 MODEL 24SII I O MODULE EPROM UPGRADE 127 APPENDIX D MECHANICAL LAYOUTS 129 D 1 MODEL 24SII FRONT PANEL 129 D 2 MODEL 24SII UNIT ASSEMBLY 130 D 3 MODEL 24SII MAIN BOARD 131 D 4 M24SII M01 MEMORY BOARD ASSEMBLY 132 D 5 M24SII M02 MEMORY BOARD ASSEMBLY 133 D 6 I O MODULE 4 PARALLEL PORTS BAYTECH P N M24SII V02 134 D 7 I O MODULE 4 ...

Page 10: ...APPENDIX E TROUBLESHOOTING 137 APPENDIX F INDEX 143 ...

Page 11: ...mputers to share data bases and transfer files Cost effectiveness is thus achieved through resource sharing among multiple users Figure 1 below shows a Model 24SII DES with twenty four ports installed This application shows eight local PCs a remote PC using the BayTech Tran x LPT 460 high speed parallel serial converter and a file server from a LAN sharing a plotter HP LaserJet Series II printer H...

Page 12: ...gh speed data transfer to handle faster computers and software 2 Networking between pairs of computers or computers and other devices such as modems bar code readers etc 3 Optimum flexibility You select the right combination of serial and parallel ports to meet your needs when ordering and set any port other than Port 1 of Module 1 as a computer port or a printer port 4 Expandability so the system...

Page 13: ...ct Mode the Form Feed Mode the I D Page Message and the Default Printer Assignment Programming of these features is easily accomplished via the menu driven configuration mode and all changes are saved permanently in non volatile memory BayTech provides terminal emulation software for this purpose The number of ports on the Model 24SII DES can range from four to twenty four in multiples of four The...

Page 14: ... or PS 02 high speed parallel serial converter products will allow your PC to transmit data at 460k bps using cable lengths up to 1000 feet The same set up will allow your cable distance to be up to 4000 feet if your Tran x card is configured to transmit data at 115k bps Figure 2 shows a PC with the Tran x LPT 460 card and a PC with the Tran x PS 02 external module connecting to the M24SII V07 mod...

Page 15: ...y 8KB non volatile memory holds power up default information Expansion slots 6 external 2 internal Edge connecters 20 pin 6 total one for each external expansion slot 26 Pin headers Two for installation of internal memory or internal modem modules Environment 0 to 55 C temperature 5 to 95 humidity Dimensions 16 w x 10 d x 3 h Weight 9 lbs with 6 modules installed 8 lbs with no I O modules installe...

Page 16: ...e Port Select Code SELECT Printer Select Mode Anytime Form Feed Mode Disabled I D Page Message This print job is for I D Page Message Schedule Before each print job I D Page Message Enable Off Minimum Size Print Job 3 characters USER PROGRAMMABLE CONFIGURATIONS Easy to configure using on screen menu Choices are saved in non volatile memory to become the new power up default configuration Configura...

Page 17: ...ginning of printing Form Feed Mode No form feed Form feed at beginning of printing only Form feed at end of printing only Form feed at both beginning and end of printing I D Page Enable on or off Default Printer Assignment Can be any module and port number of a printer port Option configurable per port Users connected to any module other than Module 1 may configure these options for their module o...

Page 18: ... 2k 230 4k or 460 8k Power Consumption 5VDC 150mA 12VDC 25mA 12VDC 25mA Dimensions 3 3 h x 2 4 w 4 PORT HIGH SPEED SERIAL EIA 422 DES Interface Asynchronous EIA 422 or EIA 232 hardware selectable full duplex Connectors RJ 45 8 wire with built in RJ 11 4 wire BayTech part M24SII V07 Handshaking bidirectional HSO HSI EIA 422 or CTS DTR EIA 232 handshaking lines selectable XON XOFF Handshaking unidir...

Page 19: ...ES Interface Centronics protocol Connectors DB 25 female BayTech part M24SII V02 Handshaking BUSY pin 11 ACK pin 10 out only Flow Control Buffer 1k character input output Speed 60k cps output 58k cps input Dimensions 3 3 h x 2 4 w ...

Page 20: ...computer ports Printers and plotters connect to ports designated as printer ports Proceed to Step 3 3 Does your application call for printer or plotter sharing between multiple computers and just one printer or plotter If no proceed to Step 5 If yes proceed to Step 4 4 Will your single printer or plotter connect to the Model 24SII DES in serial If no proceed to Step 6 If yes there is no need to re...

Page 21: ...oceed to Step 9 If no proceed to Step 10 9 If you need to reconfigure the Model 24SII DES with respect to Port Designation and or Serial Port Configuration you will need to access configuration mode to make the appropriate changes Please see Section 4 6 for instructions and then proceed to Step 10 10 Proceed with cabling your devices to the appropriate ports on the Model 24SII DES See Section 5 fo...

Page 22: ...id not incur damage during shipping If items are missing or damage did occur please contact BayTech technical support at 800 523 2702 BayTech provides utility software to assist you in configuring the Model 24SII DES There are three peripheral selection programs included to provide easy device selection from text mode graphics mode or Windows IMPORTANT Copy the BayTech original diskette onto a bla...

Page 23: ...ct OK 3 A menu will appear on your screen titled Series Definition This menu will contain choices for the type of BayTech product you have purchased Highlight Model 24 Series with the arrow keys or mouse followed by OK 4 A menu titled Printer Selection Programs will appear on your screen You are given three selections RAMEXEC RAMTSR and WNDEXEC Choose RAMEXEC if your PC runs non Windows programs t...

Page 24: ...le DTE DB 25 female DCE or RJ 45 modular connectors Next determine what device will be connected to each available port whether the device will be connected to a serial or parallel port and whether the device will connect to a computer port or printer port Finally you should obtain the correct cables to connect your equipment to the Model 24SII NOTE Any port except Port 1 of Module 1 may be design...

Page 25: ...Several parameter settings are set only through this port Port 2 of Module 1 serial is factory designated as a printer port All other installed ports are factory designated as computer ports You may designate in the configuration mode which ports are computer ports and which are printer ports if required Other factory default settings are Input Inactivity Timeout 20 seconds Port Select Code SELECT...

Page 26: ... all required cables apply power and begin using your Model 24SII Data Exchange System If your application requires that you reconfigure the Model 24SII DES different from the factory default configuration determine which parameters must be changed i e baud rate word size Port Designation etc All features of the Model 24SII DES are configured one module four ports at a time using a serial terminal...

Page 27: ...procedure 1 From the BAYTECH subdirectory prompt enter a term The program will respond with an identification block and then a configuration menu for the PC COM port You are now in the terminal emulation mode with full duplex communication Any characters you type from the keyboard will be transmitted out of the PC COM port to the Model 24SII DES They will not appear on the CRT screen Any character...

Page 28: ...key in TERM sends the character sequence Control T 14 Hex followed by the ASCII capital C character 43 Hex The main configuration menu for the selected module will appear From this point on configuration of the Model 24SII DES will be accomplished by following the plain English menus that will prompt you Enter the letter corresponding to the desired operation Refer to the chart provided on the fol...

Page 29: ...ts designated as computer ports When the Port Designation is changed for any port the printer assignment on all computer ports automatically resets to zero putting the computers in the contention mode Program Port Select Code SELECT Max of 8 ASCII characters Non printable characters are acceptable but they will not appear in the status menu Ensure the Port Select Code is made up of unique characte...

Page 30: ... only Max baud rate using bidirectional is 115 2K bps max baud rate using unidirectional is 460 8K bps Programmable for the M24SII V07 high speed module only Set Input Inactivity Timeout 20 seconds 0 to 200 seconds A long timeout setting for a PC will prevent other PCs from accessing the port it is connected to while allowing the connected PC to send numerous print jobs If you do not want to wait ...

Page 31: ...r this page may be entered as part of the 80 characters and will not appear on the printed page The same message is sent for each device if I D Page Message is enabled for that port It will automatically be followed with the logical port name of the PC sending the print job Enable Disable I D Page Message off on or off Select Print Schedule for I D Page Before print job Before print job or after p...

Page 32: ...ed RAMEXEC or RAMTSR for your application i e added all the appropriate peripheral device selections there is no need to copy the SETUP or SETUPCFG file to the new PC SETUP or SETUPCFG is required only if you want to make changes to your current version of RAMEXEC or RAMTSR You would typically add RAMEXEC or RAMTSR to your PC s AUTOEXEC BAT file The RAMEXEC or RAMTSR command should be located afte...

Page 33: ...n copied to a subdirectory called BAYTECH Your AUTOEXEC BAT program would need contain the following PATH C C BAYTECH MODE LPT1 COM1 MODE COM1 9600 N 8 1 P RAMEXEC The vertical dots before the PATH command and after the RAMEXEC command represent other commands that may be part of your AUTOEXEC BAT file The horizontal dots shown in the PATH command represent other subdirectories that may be part of...

Page 34: ...DES if required Parallel ports on the Model 24SII DES have DB 25 female connectors A straight DB 25 male to male cable is required between each IBM PC computer or compatible and the parallel ports on the Model 24SII DES CAUTION Some standard EIA 232 DB 25 cables may have Pin 1 grounded to connector shell Since there is a strobe line on Pin 1 in Centronics protocol this ground must be removed if th...

Page 35: ...munication DB 25 STANDARD CENTRONICS TTL LEVELS BayTech Cable part MC25S010 PIN SIGNAL 1 Strobe 2 Data Bit 0 3 Data Bit 1 4 Data Bit 2 5 Data Bit 3 6 Data Bit 4 7 Data Bit 5 8 Data Bit 6 9 Data Bit 7 10 Acknowledge 11 Busy 12 P End out of paper 13 Select 14 Auto Feed 15 Error 16 Initialize Printer 17 Select Input 18 25 Ground ...

Page 36: ... 2 and transmits data on Pin 3 it is DCE However to verify the interface requirements please refer to the Owner s Manual for your device The serial ports on the M24SII V03 I O module has DB 25 male DTE connectors and use the following signals for communication DTE PORT SIGNALS PIN EIA 232 DIRECTION DESCRIPTION 1 PGND Protective ground 2 TX Output Data out 3 RX Input Data in 4 RTS Output Voltage wh...

Page 37: ...ollowing page When using XON XOFF protocol it may be desirable to use cables with only Tx Rx and GND connected Input handshaking lines are enabled if nothing is connected allowing the system to operate with only Tx Rx and GND connected CAUTION Do not attempt to use a serial cable on a parallel port Since an EIA 232 serial port usually carries a potential of 12 and 12 volts plugging a serial cable ...

Page 38: ...20 7 5 4 3 2 1 PGND TXD RXD RTS CTS SGND DTR FEMALE DB 25 MODEL 24 DTE MALE DB 25 DCE DEVICE DTR SGND CTS RTS RXD TXD PGND Figure 1 DTE Model 24 to DCE Device PGND TXD RXD RTS CTS DSR SGND DTR DTE DEVICE FEMALE DB 25 MODEL 24 DTE FEMALE DB 25 DTR SGND DSR CTS RTS RXD TXD PGND 20 7 6 5 4 3 2 1 1 2 3 4 5 6 7 20 Figure 2 DTE Model 24 to DTE Device ...

Page 39: ... receives data on Pin 2 and transmits data on Pin 3 it is DCE However to verify the interface requirements please refer to the Owner s Manual for your device The serial ports on the M24SII V04 I O module has DB 25 female DCE connectors and use the following signals for communication DCE PORT SIGNALS PIN EIA 232 DIRECTION DESCRIPTION 1 PGND Protective ground 2 TX Input Data in 3 RX Output Data out ...

Page 40: ... XON XOFF protocol it may be desirable to use cables with only Tx Rx and GND connected On the serial ports of a BayTech Model 24SII DES input handshaking lines are enabled if nothing is connected allowing the system to operate with only Tx Rx and GND connected CAUTION Do not attempt to use a serial cable on a parallel port Since an EIA 232 serial port usually carries a potential of 12 and 12 volts...

Page 41: ... NOTE Please refer to Appendix A for recommended cabling diagrams between the Model 24SII DES and various computers and printers ...

Page 42: ...to convert from either DB 25 or DE 9 connectors to modular connectors BayTech has a complete line of RJ 45 adapters and cables that will make your installation quick and trouble free Please see Appendix A 5 for adapter pin outs as well as recommended cabling The M24SII V05 and M24SII V06A I O modules use the following signals for communication RJ 45 PIN OUT INFORMATION PIN SIGNAL EIA 232 DIRECTION...

Page 43: ...ou have an M24SII V06 module i e no A suffix please call a BayTech Applications Engineer for the correct pin signal definition and the correct adapter information Figure 7 and Figure 8 are drawings of a RJ 45 receptacle and plug The pin number assignments are given Figure 7 RJ 45 Receptacle Figure 8 RJ 45 Plug ...

Page 44: ... 422 protocol In addition you must know the connector type and the pin signal definitions for your equipment Ports on the M24SII V07 module have RJ 45 8 wire connectors which also accept RJ 11 4 wire connectors Most serial computers modems and printers do not have RJ 45 RJ 11 modular connectors Therefore adapters are required to convert from either DB 25 or DE 9 connectors to modular connectors Ba...

Page 45: ...ng and bidirectional Printer Sharing Mode Ports on the M24SII V07 I O module using 8 wire Operation utilize the following pins and signals for communication RJ 45 PIN OUT INFORMATION PIN SIGNAL 232 422 DIRECTION DESCRIPTION 1 DTR HSO Output Handshake Out enable disable the receiving of characters 2 GND GND Signal Ground 3 NC TX Output No connection Transmit Data 4 TX TX Output Transmit Data Transm...

Page 46: ... the signal grounds connected Please Figure 9 M24SII V07 EIA 422 8 wire Equipment RJ 45 Connections 1 HSO HSI 2 GND GND 3 TX RX 4 TX RX 5 RX TX 6 RX TX 7 GND GND 8 HSI HSO Figure 9 M24SII V07 EIA 422 8 wire Connection If you are connecting an EIA 422 device other than another BayTech product you must refer to the operator s manual for your equipment to determine which pins are defined as TX TX RX ...

Page 47: ... Operation and bidirectional Printer Sharing Mode utilize the following pins and signals for communication RJ 11 PIN OUT INFORMATION PIN SIGNAL EIA 232 DIRECTION DESCRIPTION 1 NC No connection 2 TX Output Transmit Data 3 RX Input Receive Data 4 GND Signal Ground If you are connecting a device to a port on the M24SII V07 module using EIA 232 Protocol 4 wire Operation and bidirectional Printer Shari...

Page 48: ...rinter Sharing Mode utilize the following pins and signals for communication RJ 11 PIN OUT INFORMATION PIN SIGNAL EIA 232 DIRECTION DESCRIPTION 1 NC No connection 2 DTR Output Handshake Out enable disable the receiving of characters 3 RX Input Receive Data 4 GND Signal Ground If you are connecting a device to a computer port on the M24SII V07 module using EIA 232 Protocol 4 wire Operation and unid...

Page 49: ...nter Sharing Mode utilize the following pins and signals for communication RJ 11 PIN OUT INFORMATION PIN SIGNAL EIA 232 DIRECTION DESCRIPTION 1 NC No connection 2 TX Output Transmit Data 3 CTS Input Handshake In enable disable the transmission of characters 4 GND Signal Ground If you are connecting a device to a printer port on the M24SII V07 module using EIA 232 Protocol 4 wire Operation and unid...

Page 50: ... 11 PIN OUT INFORMATION PIN SIGNAL EIA 422 DIRECTION DESCRIPTION 1 TX Output Transmit Data 2 TX Output Transmit Data 3 RX Input Receive Data 4 RX Input Receive Data When connecting an EIA 422 device to the M24SII V07 module using 4 wire Operation and bidirectional Printer Sharing Mode the cable required to connect the two devices must have TX wired to RX and vice versa and TX wired to RX and vice ...

Page 51: ...ed cable pinout COMPUTER PORTS NOTE Computer ports using this configuration will support hardware handshaking only You must ensure hardware handshaking is supported by the equipment that will connect to these ports Computer ports on the M24SII V07 module using EIA 422 Protocol 4 wire Operation and unidirectional Printer Sharing Mode utilize the following pins and signals for communication RJ 11 PI...

Page 52: ...1 M24SII V07 EIA 422 4 wire Connection If you are connecting a device other than another BayTech product you must refer to the operator s manual for your equipment to determine which pins are defined as TX TX HSI and HSI NOTE If your EIA 422 device has only one input hardware handshake line i e no HSI and HSI connect this single handshake line to HSO on the M24SII V07 module Pin 5 If you are conne...

Page 53: ...SI Input Handshake In 4 HSI Input Handshake In When connecting an EIA 422 device to a printer port on the M24SII V07 I O module using 4 wire Operation and unidirectional Printer Sharing Mode the cable required to connect the two devices must have TX wired to RX and TX wired to RX HSI wired to HSO and HSI wired to HSO Please see Figure 12 below M24SII V07 Printer Port Equipment EIA 422 4 wire unidi...

Page 54: ...ingle handshake line to HSI on the M24SII V07 module Pin 5 If you are connecting a printer port on the M24SII V07 module to another BayTech product such as the Tran x SP 01 or SP 02 using 4 wire Operation and unidirectional Printer Sharing Mode please refer to Appendix A 7 4 for the recommended cable pinout ...

Page 55: ...port cannot be changed The Model 24SII DES will automatically convert data from serial to parallel and parallel to serial NOTE The Port Designation does not allow you to change ports from parallel to serial or vice versa The communication protocol of the ports parallel or serial is determined by the type s of modules you have installed NOTE If computer to computer communication is required the des...

Page 56: ... any ASCII character string up to eight characters the desired module number 1 to 6 the desired port number 1 to 4 and a terminating character 0D Hex Enter Return or 0A Hex Line Feed We will refer to this entire string of characters as the port select sequence For example if you are using the factory default Port Select Code SELECT and you wish to select a printer connected to Port 2 of Module 4 y...

Page 57: ...computer to select a printer anytime while printing by sending a new port select sequence Mode B allows the computer to select the printer at the beginning of printing only In Mode B the Model 24SII DES will recognize any port select sequence in the first 16 characters of the print job only After the first 16 characters of the print job have been received the Input Inactivity Timeout period must e...

Page 58: ...ng mode for high speed serial modules is bidirectional The default 4 Wire 8 Wire Operation for the M24SII V07 module is 8 wire The Input Inactivity Timeout allows the Model 24SII DES to disconnect a computer port which has sent a print job when no characters are received from the computer for the specified timeout period The input inactivity timeout is effective only for computer to peripheral com...

Page 59: ...g various users print jobs in the event you have several people printing to the same printer frequently such as in a classroom environment Factory default is This print job is for with the I D message disabled Individual computer ports may be configured to have print jobs sent to a specific default printer port automatically The Default Printer Assignment consists of the module number 1 to 6 and t...

Page 60: ...e necessary changes to the Port Designations by accessing the configuration mode of the Model 24SII DES see Section 8 For a description of the various changes that may be made by accessing the configuration mode please see Section 6 It is highly recommended that printers or plotters connected to the Model 24SII DES be plugged in and turned on at all times while there is activity occurring on the M...

Page 61: ...t job Subsequent print jobs will be routed to the first available printer until either another port select sequence is sent power is cycled on the Model 24SII DES or you enter the configuration mode The Port Select Code 00 zero zero and terminating character are trapped if they are valid and not passed to the printer A computer connected to a port configured for contention mode upon power up i e D...

Page 62: ...lected a specific peripheral port will be routed to that peripheral port until another peripheral port is selected There are two modes for sending the Port Select Code In Port Select Mode A printer selection anytime while printing the Model 24SII DES looks for the Port Select Code anytime If no Port Select Code is received the data will be routed to the last selected peripheral port or to the defa...

Page 63: ...er for the specified input inactivity timeout period or when the computer sends a manual disconnect sequence In Port Select Mode A when the Input Inactivity Timeout is set to 0 zero seconds a print job is ended only under the following conditions 1 Manual Disconnect Port Select Code followed by a terminating character Enter Return or Line Feed 2 Clear Buffer Command Port Select Code followed by CL...

Page 64: ...ng characters is not counted as part of the Input Inactivity Timeout When a user makes a request to print the data is sent to the Model 24SII DES and stored in the spooling buffer standard 1MB optional up to 16MB All users may simultaneously input data to this dynamically allocated buffer Therefore the entire buffer could be occupied by data from one user if only one is active or the buffer could ...

Page 65: ... in both Port Select Mode A or Mode B However in Port Select Mode B the Model 24SII DES is transparent after the first 16 characters are received therefore the computer must wait for the Input Inactivity Timeout to occur before sending the clear buffer command The clear buffer command may be sent as a separate ASCII file preceding the print job via DOS batch files as part of a printer initializati...

Page 66: ...es the printer sharing mode must be bidirectional If two serial computers wish to communicate either computer sends to the Model 24SII DES the Port Select Code followed by the other computer s module number and port number and a terminating character 0D Hex Enter Return or 0A Hex Line Feed If the requested computer is free the two computers are connected with full duplex communication and an On Li...

Page 67: ...d otherwise the Port Select Code will become invalid and the characters will be passed through to the device connected to the other computer port The Model 24SII DES will respond to a valid disconnect sequence by sending an Off Line message to the user requesting the disconnect File transfer can be achieved with a computer to computer connection through the Model 24SII DES as long as the communica...

Page 68: ...he modem is currently connected to another computer port Proceed with your normal modem communications once you receive the On Line message from the Model 24SII DES It is suggested that the computer make the connection to the modem port on the Model 24SII DES from within your desired modem package You must be in a full duplex mode within your modem package You must also configure your modem packag...

Page 69: ...E The Model 24SII DES does not pass hardware flow control lines through the unit If your modem package requires a change of state in either the Data Carrier Detect or Ring Indicator signal lines it is suggested that you use the results codes option on both the modem and your modem package when communicating through the Model 24SII DES Please refer to your technical documentation on both your modem...

Page 70: ...transmitting computer that it cannot accept more data When the Model 24SII DES retransmits the data to the peripheral device through a printer port and the peripheral device cannot receive any more data the Model 24SII DES will expect to see a low on the CTS Clear to Send line When the peripheral device can receive more data the Model 24SII DES will expect to see a high on the CTS line When the bu...

Page 71: ...the Model 24SII DES will expect to see a high on the CTS line When Computer B cannot receive any more data the Model 24SII DES will expect to see a low on the CTS line When the buffer of the Model 24SII DES can receive more data the Model 24SII DES will make the DTR line high to Computer A NOTE The Model 24SII DES permits XON XOFF to be enabled or disabled by port independently in the receive and ...

Page 72: ...odel 24SII DES will expect to see a high on the CTS line or receive an XON When the buffer of the Model 24SII DES can receive more data the Model 24SII DES will send an XON to the transmitting computer In the reverse direction Peripheral to Model 24SII DES to Computer handshaking is the same but the spooling buffer is not utilized BETWEEN COMPUTER AND COMPUTER THROUGH MODEL 24SII When Computer A t...

Page 73: ...ord processing programs is to create an ASCII file for each printer which contains the Port Select Code the device module number 1 to 6 the device port number and the terminating character This file could be named PRINTER1 When you wish to select a particular device you simply print this file followed by the actual print file Another method is to make the port select sequence the first characters ...

Page 74: ...printer definition file for a specific printer by using the PTR command The port select sequence for the Model 24SII DES would typically be inserted prior to any escape codes for the printer Please see the documentation for your application package s for more information on editing printer initialization strings If you have a HP 3000 mini computer you should contact a BayTech sales representative ...

Page 75: ...ve i e all red LEDs must be off and there can be no print jobs in the buffer Once the master configuration port has accessed the configuration mode the LEDs for Port 1 of Module 1 and the LEDs for the selected module will illuminate and will remain illuminated while configuration is occurring All devices connected to the selected module for configuration will be unable to communicate with the Mode...

Page 76: ...sabled If you do not have a dumb terminal or a terminal emulation program BayTech supplies a utility diskette which includes software to put an IBM PC or compatible into a terminal mode See Section 4 2 for instructions to obtain the software TERM EXE and Section 4 6 for instructions to use TERM for configuration 2 Send from this device to the Model 24SII DES port being used for configuration the f...

Page 77: ...ion is accessible via Port 1 Module 1 ONLY Strike any Key to continue NOTE If a computer port other than the master configuration port attempts to access configuration mode of a module that it is not connected to the Model 24SII DES will ignore the configuration request and create a print job consisting of Control T C and the module number CAUTION If you have a M24SII V07 installed as Module 1 do ...

Page 78: ...A Select Print Schedule for I D Page B Program Default Printer Assignment C Program Module Printer Sharing Mode D Exit Configuration X For illustration purposes we will show the configuration menus for Module 1 which are typical of the configuration menus generated by other modules NOTE Menu selection is case sensitive It is recommended that your keyboard be in the CAPS LOCK position NOTE If you h...

Page 79: ...al memory 1M This Module is 1 Status 1 Program Port Logical Name 2 Set Number of Printers 3 Program Port Select Code 4 Set Port Select Mode 5 Set Input Inactivity Timeout 6 Enable Disable Form Feed Mode 7 Program I D Page Message 8 Enable Disable I D Page Message 9 Select Print Schedule for I D Page A Program Default Printer Assignment B Exit Configuration X We will make special notes at the begin...

Page 80: ...ame Port Port Prnt Type Desig Assn 1 Device A Serial Computer 0 2 Device B Serial Printer 1 2 3 Device C Serial Computer 0 4 Device D Serial Computer 0 Strike any Key to Continue or X to Exit Port Logical Name Form feed I D Computer Begin End Page 1 Device A Off Off Off 3 Device C Off Off Off 4 Device D Off Off Off Strike any Key to Continue or X to Exit Port Logical Name Timeout Port Computer in ...

Page 81: ... Bay Technical Associates 1992 Model 24SII Data Exchange System Rev 2 02 Total memory 1M This Module is 1 Status 1 Program Port Logical Name 2 Set Port Designation 3 Program Port Select Code 4 Set Port Select Mode 5 Set Serial Port Configuration 6 Set Input Inactivity Timeout 7 Enable Disable Form Feed Mode 8 Program I D Page Message 9 Enable Disable I D Page Message A Select Print Schedule for I ...

Page 82: ...n 1 Device A Serial Computer 0 2 Device B Serial Printer 1 2 3 Device C Serial Computer 0 4 Device D Serial Computer 0 Enter Port Number ENTER Exit You should now enter the port number of the device for which you wish to program a new Logical Name and then strike the Enter key For example if you entered 1 and Enter for Port 1 the Model 24SII DES will respond with Port Logical Name Port Port Prnt T...

Page 83: ...e C Serial Computer 0 4 Device D Serial Computer 0 Enter Port Number ENTER Exit You may now program a new Logical Name for another port if desired by entering that port number or exit by striking the Enter key The Model 24SII DES will save the new Logical Name s permanently in non volatile memory and will subsequently power up with the new name s in effect The Model 24SII DES will now return to th...

Page 84: ...r M24SII V08 high speed serial module Port 1 of Module 1 cannot be configured to be a printer port The Model 24SII DES will respond with Enter Request 3 Port Logical Name Port Port Prnt Type Desig Assn 1 Device A Serial Computer 0 2 Device B Serial Printer 1 2 3 Device C Serial Computer 0 4 Device D Serial Computer 0 Enter Port Number ENTER Exit Enter the number of the port that you wish to design...

Page 85: ...may now designate another port or exit by striking the Enter key The Model 24SII DES will save the new Port Designations permanently in non volatile memory and will subsequently power up with the new Port Designations in effect The Model 24SII DES will now return to the main configuration menu see Section 8 1 and display the following message Change your devices to match new configuration This rem...

Page 86: ...the desired Number of Printers NOTE The higher numbered ports on the M24SII V02 high speed parallel module are reserved as printer ports For example if you wish to define 2 printers on this module enter 2 in response to the prompt above Physically connect the printers to Port 3 and Port 4 of this module number The Model 24SII DES will return to the main configuration menu for the M24SII V02 high s...

Page 87: ...for no change Enter the new Port Select Code If less than 8 characters are entered you must follow entry by striking the Enter key NOTE Non printable characters are acceptable but they will not appear in the Status menu For example if you entered PORT the Model 24SII DES will respond with Port Select Code is PORT Enter Port Select Code Max 8 characters or ENTER for no change If no additional chang...

Page 88: ... the port on which the Port Select Mode is to be changed and then strike the Enter key For example if you entered 3 and Enter for Port 3 the Model 24SII DES will respond with Port Select Mode is Anytime while printing Enter A for Anytime B for Beginning ENTER for no change Enter the Port Select Mode that you wish For example if you entered B for Beginning the Model 24SII DES will respond with Port...

Page 89: ... ports on this module OPTION ACCESSIBILITY Through any serial computer port By responding to the Enter Request message at the end of the main configuration menu see Section 8 1 with 6 Set Serial Port Configuration you may change the serial configuration of each serial port on the selected module i e baud rate word size stop bits parity and XON XOFF handshaking Transmit and Receive High speed seria...

Page 90: ...0 8 1 None Off Off Enter Port Number ENTER Exit You should enter the number of the port that you wish to reconfigure and then strike the Enter key For example if you sent 2 and Enter the Model 24SII DES will respond with the current status of Port 2 and a menu of the available options Bidirectional Port Baud Word Stop Parity Xon Xoff Rate Size Bits Xmit Recv 2 9600 8 1 None Off Off Exit Save 1 Set...

Page 91: ...9 for 115 2K baud rate and the Model 24SII DES will respond with the reconfigured status of the port the option menu and the prompt Port Baud Word Stop Parity Xon Xoff Rate Size Bits Xmit Recv 2 115 2K 8 1 None Off Off Exit Save 1 Set Stop Bits 4 Set Baud Rate 2 Set Parity 5 Set Word Size 3 Set XON XOFF 6 Enter Request You may now select other options from the menu to reconfigure Port 2 For exampl...

Page 92: ...ered N in response to the transmit direction and Y in response to the receive direction the Model 24SII DES will respond with Bidirectional Port Baud Word Stop Parity Xon Xoff Rate Size Bits Xmit Recv 2 38400 8 1 None Off On Exit Save 1 Set Stop Bits 4 Set Baud Rate 2 Set Parity 5 Set Word Size 3 Set XON XOFF 6 Enter Request If there are no other changes for this port send 1 Exit Save and the Mode...

Page 93: ...nactivity Timeout 7 Enable Disable Form Feed Mode 8 Program I D Page Message 9 Enable Disable I D Page Message A Select Print Schedule for I D Page B Program Default Printer Assignment C Exit Configuration X Change you devices to match new configuration This message reminds you to change the serial configuration of the devices connected to the reconfigured ports to match the new configuration of t...

Page 94: ...od The Model 24SII DES will respond with Enter Request 7 Port Logical Name Timeout Port Computer in sec Sel Mode 1 Device A 20 Anytime 3 Device C 20 Anytime 4 Device D 20 Anytime Enter Port Number ENTER Exit Enter the number of the computer port for which you wish to set the Input Inactivity Timeout and then strike the Enter key For example if you entered 3 and Enter the Model 24SII DES will respo...

Page 95: ...e and a port number For example if you entered 100 for 100 seconds the Model 24SII DES will respond with Input Inactivity Timeout is 100 Seconds Enter New Value 0 to 200 or ENTER for no change If no other change is required strike the Enter key The Model 24SII DES will respond with the reconfigured status and the prompt You may now set the timeout for another computer port or exit by striking the ...

Page 96: ...e D Off Off Off Enter Port Number ENTER Exit Enter the number of the port for which you wish to set the Form Feed Mode and then strike the Enter key For example if you entered 3 for Port 3 and Enter the Model 24SII DES will respond with Form Feed at the Beginning of Printing is OFF Enter 1 for ON 2 for OFF ENTER for no change You should then enter 1 if you wish to enable form feed at the beginning...

Page 97: ...r example if you strike the Enter key for no change the Model 24SII DES will respond with Port Logical Name Form feed I D Computer Begin End Page 1 Device A Off Off Off 3 Device C On Off Off 4 Device D Off Off Off Enter Port Number ENTER Exit You may now set the Form Feed Mode for another port or exit by striking the Enter key The Model 24SII DES will save the new form feed settings permanently in...

Page 98: ...terminate or no change Enter the new message followed by Control C Note that the message will print on paper exactly as it is placed on the CRT screen The message may appear on one line or several lines If several lines are desired each line must be ended by Enter and Line Feed J For example if you entered THIS IS THE NEW MESSAGE the Model 24SII DES will respond with I D Page Message is THIS IS TH...

Page 99: ...Off Off Off 4 Device D Off Off Off Enter Port Number ENTER Exit Enter the number of the computer port for which you wish to enable or disable the I D Page Message and then strike the Enter key For example if you entered 3 and Enter for Port 3 the Model 24SII DES will respond with I D Page Message Switch is Off Enter 1 for ON 2 for OFF ENTER for no change You should enter 1 to enable the I D Page M...

Page 100: ...C Off Off On 4 Device D Off Off Off Enter Port Number ENTER Exit You may now enter another port number or exit by striking the Enter key The Model 24SII DES will save the enabling or disabling of the I D Page Message permanently in non volatile memory and will subsequently power up with the new setting in effect The Model 24SII DES will now return to the main configuration menu see Section 8 1 ...

Page 101: ... Page Printer Schedule 3 Device A Before 4 Device B Before Enter Port Number ENTER Exit Enter the number of the printer port for which you wish to change the I D Page Message print schedule and then strike the Enter key For example if you entered 3 and Enter for Port 3 the Model 24SII DES will respond with I D Page is to be Print BEFORE the Print Job Enter A for After B for Before ENTER for no cha...

Page 102: ...3 Device A After 4 Device B Before Enter Port Number ENTER Exit You may now reconfigure another printer port or exit by striking the Enter key The Model 24SII DES will save the new I D Page Message print schedule permanently in non volatile memory and subsequently power up with the new schedule in effect The Model 24SII DES will now return to the main configuration menu see Section 8 1 ...

Page 103: ... without a port select sequence the print job will automatically be routed to the default printer module port NOTE The Default Printer Assignment for printer ports will be the module number and port number the printer is connected to on the Model 24SII DES The Model 24SII DES will respond with Enter Request C Port Logical Name Port Port Prnt Type Desig Assn 1 Device A Serial Computer 0 2 Device B ...

Page 104: ...ter 1 in response to the prompt The Model 24SII DES will respond with Port Logical Name Port Port Prnt Type Desig Assn 1 Device A Serial Computer 0 2 Device B Serial Printer 1 2 3 Device C Serial Computer 6 1 4 Device D Serial Computer 0 Enter Port Number ENTER Exit You may now reconfigure another computer port or exit by striking the Enter key The Model 24SII DES will save the new Default Printer...

Page 105: ...ves printer plotter sharing only The maximum baud rate allowed for a module using unidirectional printer sharing mode is 460 000 bps The Model 24SII will respond with Printer Sharing Mode is Bidirectional Unidirectional and Bidirectional will be set for all four ports Changing from on to the other will default all ports to 9600 baud Enter 1 for Unidirectional 2 for Bidirectional or ENTER for no ch...

Page 106: ...er Ship your unit to the address listed in Section 11 Technical Support If you need to repack your unit for shipping please choose a heavy cardboard box for packing Surround your unit with sufficient insulation a minimum of 2 inches to withstand the rigors of transport Be sure to seal the box securely with strapping or packing tape Masking tape or cellophane tape is not recommended If you are retu...

Page 107: ...Model 24SII DES 3 Identify any special equipment you are using for example in line spoolers networks software drivers etc 4 Identify what cables you are using what the lengths of the cables are and who sold you the cables 5 Identify any special options you may have ordered with your Model 24SII DES 6 Identify the software packages you are using 7 If possible have a print out of the Model 24SII s c...

Page 108: ...erference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures 1 Reorient the receiving antenna 2 Relocate the computer equipment with respect to the receiver 3 Move the computer away from the receiver 4 Plug the computer into a different outlet so that compute...

Page 109: ...2 TXD RXD RTS CTS DSR SGND DTR FEMALE DB 25 DTR SGND DSR CTS RTS RXD TXD 20 MODEL 24 DTE PC FEMALE DB 25 DCD 8 DCD 8 FEMALE DB 25 PC MODEL 24 DTE TXD RXD RTS CTS DSR SGND FEMALE DB 25 SGND RXD TXD 2 3 4 5 6 7 7 3 2 DCD 8 DTR 20 ...

Page 110: ...8 7 6 5 2 RXD SGND DTR FEMALE DB 25 MODEL 24 DTE FEMALE DB 25 PC DTR DCD SGND DSR CTS TXD PC FEMALE DB 25 MODEL 24 DTE FEMALE DB 25 2 3 4 5 6 7 20 20 7 5 3 2 TXD RXD RTS CTS DSR SGND DTR DTR SGND CTS RXD TXD DCD 8 ...

Page 111: ... 3 2 TXD RXD RTS CTS SGND DTR FEMALE DB 25 DTR DSR RTS RXD TXD 20 MODEL 24 DTE FEMALE DB 9 AT CTS SGND 8 1 DCD DCD 1 8 SGND CTS AT FEMALE DB 9 MODEL 24 DTE TXD RXD RTS DSR DTR FEMALE DB 25 SGND RXD TXD 2 3 4 5 6 7 7 3 2 ...

Page 112: ... 8 SGND CTS AT FEMALE DB 9 MODEL 24 DTE 20 TXD DSR DTR FEMALE DB 25 DTR SGND RXD 3 4 5 6 7 3 2 3 5 7 6 5 4 3 2 TXD RXD CTS SGND DTR FEMALE DB 25 DTR DSR RXD TXD 20 MODEL 24 DTE FEMALE DE 9 AT CTS SGND 8 1 DCD ...

Page 113: ...5 4 3 2 TXD RXD RTS CTS DSR SGND DTR FEMALE DB 25 DTR SGND DSR CTS RTS RXD TXD 20 MODEL 24 DTE HP LASERJET MALE DB 25 MALE DB 25 HP LASERJET MODEL 24 DTE TXD RXD RTS CTS DSR SGND FEMALE DB 25 SGND RXD TXD 2 3 4 5 6 7 7 3 2 ...

Page 114: ... MINIMUM CABLING USING HARDWARE HANDSHAKING MALE DB 25 HP LASERJET MODEL 24 DTE TXD RXD RTS CTS DSR SGND DTR FEMALE DB 25 SGND CTS RXD TXD 2 3 4 5 6 7 20 7 5 3 2 ...

Page 115: ...ENTRONICS PRINTER MODEL 24 MALE DB 25 STROBE DATA 0 DATA 1 DATA 2 DATA 3 DATA 4 DATA 5 DATA 6 DATA 7 9 9 ACKNOWLEDGE 10 11 10 11 BUSY PAPER OUT 12 12 SELECT INPUT OV 13 14 13 14 32 31 36 19 20 22 23 24 25 26 15 16 17 18 20 21 22 23 24 25 OV OV OV OV OV OV OV OV SELECT AUTO FEED OV ERROR INIT PRINTER ...

Page 116: ...r terminals have DB 25 male connectors most IBM XT and PS 2 type computers Refer to Figure 14 if your computers have DE 9 male connectors IBM AT type computers 1 2 3 4 5 6 7 8 20 8 7 6 5 4 3 2 RTS RX DCD DTR GND DSR TX CTS FEMALE DB 25 RJ 45 BLUE ORANGE BLACK RED GREEN YELLOW BROWN GRAY Figure 13 RJ 45 FEMALE DE 9 DTR DCD GND DSR CTS RTS RX TX 2 3 4 5 6 7 8 8 7 6 5 4 3 2 1 1 GRAY BROWN YELLOW GREE...

Page 117: ... To interface your EIA 232 serial printers or plotters to the Model 24SII refer to Figure 15 1 2 3 4 5 6 7 8 20 8 7 6 5 4 3 2 RTS RX DCD DTR GND DSR TX CTS MALE DB 25 RJ 45 GRAY BROWN YELLOW GREEN RED BLACK ORANGE BLUE Figure 15 ...

Page 118: ...bove crossed RJ 45 cables are required The RJ 45 cable between the Print Master and your connected equipment must be crossed See the cable diagram below RJ 45 MALE DB 25 2 3 4 5 6 7 8 8 7 6 5 4 3 2 1 20 CTS TX DSR GND DTR DCD RX RTS GRAY BROWN YELLOW GREEN RED BLACK ORANGE BLUE N C Figure 16 0 0 1 2 3 4 5 6 7 8 8 7 6 5 4 3 2 PIN RJ 45 RJ 45 PIN 1 Figure 17 1 23 ...

Page 119: ...anel and pulling the module out 2 Refer to Appendix D 8 and locate the four nine position jumper locations for protocol selection and the four three position jumper locations for external power The jumper locations are marked on the solder side of the connector board for protocol selection and external power respectively as JP1 and JP5 for Port 1 JP2 and JP6 for Port 2 JP3 and JP7 for Port 3 and J...

Page 120: ...port to another BayTech product please see Figure 9 in Section 5 5 1 for a recommended cabling diagram If you are connecting another BayTech device such as Tran x to a port on the M24SII V07 module as described an RJ 45 crossed cable is required to connect the two devices as shown in Figure 18 below NOTE Before connecting a Tran x device to the M24SII V07 module using this configuration you must m...

Page 121: ... bidirectional operation refer to the RJ 11 adapter drawings below Refer to Figure 19 if your computers or terminals have DB 25 male connectors most IBM XT and PS 2 type computers Refer to Figure 20 if your computers have DE 9 male connectors IBM AT type computers Figure 19 PC PS 2 Computer Terminal Adapter BayTech Part No 25FRJ11PC X Figure 20 AT Computer Adapter BayTech Part No 9FRJ11PC X ...

Page 122: ...ctional operation refer to the adapter drawing show in Figure 21 FIGURE 21 Printer Plotter Adapter BayTech Part No 25MRJ11PR X IMPORTANT When modular adapters are used as shown in Figures 19 21 above crossed RJ 11 cables are required See the cable diagram below FIGURE 22 Crossed RJ 11 Cable BayTech Part No RJ04X010 10 feet ...

Page 123: ...computers or terminals to the M24SII V07 module using 4 wire and unidirectional operation refer to the RJ 11 adapter drawings below Refer to Figure 23 if your computers or terminals have DB 25 male connectors most IBM XT and PS 2 type computers Refer to Figure 24 if your computers have DE 9 male connectors IBM AT type computers ...

Page 124: ...s or plotters to the M24SII V07 module using 4 wire and unidirectional operation refer to the adapter drawing show in Figure 25 IMPORTANT When modular adapters are used as shown in Figures 19 21 above crossed RJ 11 cables are required See the cable diagram below ...

Page 125: ...or unidirectional Printer Sharing Mode If you are using bidirectional Printer Sharing Mode and are connecting to a BayTech Tran x device you must enable XON XOFF flow control on the M24SII V07 module and on the Tran x product If you are using unidirectional Printer Sharing Mode and are connecting a computer port on the M24SII V07 module to either the Tran x LPT 460 or PS 02 you must configure the ...

Page 126: ...ps head screwdriver 1 IMPORTANT Remove power from the unit by depressing the power switch on the front of the unit to OFF and also remove power cord from socket 2 I O modules must be installed in sequence from left to right facing rear of unit There can be no empty slots between modules For example if I O modules are currently installed in the first three module slots the new module must be instal...

Page 127: ...he grooves inside the module slot Each I O module has a card edge connector that fits into a receptacle inside the Model 24SII Apply a moderate amount of pressure to the connector board of the I O module until you feel the card edge connector slip into the receptacle inside You will not be able to mount back plate of the I O module to the chassis if the I O module is not installed all the way 5 Mo...

Page 128: ...removed lift off cover 3 Determine which type of memory module you are installing The 4MB memory module part no M24SII M01 allows you to upgrade the total memory to 4MB using 1MB zig zag in line packages ZIPs The 16MB memory module part no M24SII M02 provides buffer expansion up to 16MB using either 1MB x 8 or 4MB x 8 single in line memory modules SIMMs 4 Determine the location where the new memor...

Page 129: ...the four holes on the module with the bolts on the bottom panel The ribbon cable should face away from the LEDs on the front panel Secure the memory module in place with the four nuts by tightening them with the nut driver or socket 7 Plug the ribbon cable onto the appropriate J connector on the main board 8 If you need to install any additional memory onto the memory module please refer to Append...

Page 130: ...p cover of the unit After screws are removed lift off cover 3 With LED side of the unit facing you look down into the unit and locate the 8 memory expansion module sockets These zig zag sockets are marked U301 U302 to U308 see Appendix D 4 Note that two or more of these sockets already have memory chips installed 4 The new memory expansion chips must be installed in the following order the first m...

Page 131: ...he holes Push down on the DRAM IC until it is firmly seated in the holes Be careful not to bend pins or miss holes 7 If a DRAM IC needs to be removed pull straight up and away from the holes Be careful not to bend pins 8 Once memory expansion has been completed replace the cover of the unit and the 4 phillips head screws that hold it Apply power to the unit The upgrade is now complete 9 To verify ...

Page 132: ...o remove power cord from socket 2 Using the phillips head screwdriver remove the four phillips head screws holding the top cover of the unit After screws are removed lift off cover 3 With LED side of the unit facing you look down into the unit and locate the memory board The memory board has four sockets for memory expansion These straight line sockets are marked U15 U16 U17 and U18 refer to Appen...

Page 133: ...r of the memory expansion module with the socket Push down on the memory expansion module until it is firmly seated in the socket 7 If a memory expansion module needs to be removed pull straight up and away from the socket 8 Once memory expansion has been completed replace the cover of the unit and the 4 phillips head screws that hold it Apply power to the unit The upgrade is now complete 9 To ver...

Page 134: ...e top panel with the phillips head screwdriver 3 With the front of the unit LED side facing away from you locate socket U2 see Appendix D 3 Main Board Mechanical Layout 4 Remove existing EPROM from socket U2 with IC extractor or needle nose pliers Gradually loosen each side of the chip alternating pliers from side to side so as not to bend chip pins Pull loosened EPROM all the way out 5 Install ne...

Page 135: ... off cover 3 If upgrading the M24SII M01 memory module locate socket U102 on the module see Appendix D 4 If upgrading the M24SII M02 memory module locate socket U2 on the module see Appendix D 5 4 Remove existing EPROM from the appropriate socket with IC extractor or needle nose pliers Gradually loosen each side of the chip alternating pliers from side to side so as not to bend chip pins Pull loos...

Page 136: ...ch Part Number Module Type EPROM Label Marking M24SII V02 4 Port high speed parallel DB 25F M24SII DES 4AHS M24SII V03 4 Port high speed serial EIA 232 DB 25M DTE M24SII DES 4CHS M24SII V06A 4 Port high speed serial EIA 232 RJ 45 M24SII DES 4CHS M24SII V07 4 Port high speed serial EIA 422 RJ 45 M24SII DES 4CHS M24SII V08 4 Port high speed serial current loop DB 25M M24SII DES 4CHS The materials yo...

Page 137: ... with the notch on the socket When installing the new chips be careful not to bend any of the pins Make sure none of the pins miss their sockets Also make certain that you install the correct EPROM into the appropriate I O module 6 If more than one I O module is installed into the Model 24SII locate the appropriate socket on those modules and follow the procedures listed above under steps 2 throug...

Page 138: ... APPENDIX D MECHANICAL LAYOUTS D 1 MODEL 24SII FRONT PANEL ...

Page 139: ... D 2 MODEL 24SII UNIT ASSEMBLY ...

Page 140: ... D 3 MODEL 24SII MAIN BOARD ...

Page 141: ... D 4 M24SII M01 MEMORY BOARD ASSEMBLY ...

Page 142: ... D 5 M24SII M02 MEMORY BOARD ASSEMBLY ...

Page 143: ... D 6 I O MODULE M24SII V02 4 PARALLEL PORTS ...

Page 144: ... D 7 I O MODULES M24SII V03 V06 V08 4 HIGH SPEED SERIAL PORTS MAIN BOARD ...

Page 145: ... D 8 I O MODULE M24SII V07 4 HIGH SPEED SERIAL PORTS CONNECTOR BOARD ...

Page 146: ... not used should be high If lines are high turn Model 24SII DES off You should notice CTS and DSR lines go low If they do not go low there is a good chance you have an error in your cable Typing characters from TERM should illuminate PC LED on Model 24SII DES PC com port Check installation procedures for PC s serial port COM1 must generate an interrupt on IRQ4 COM2 on IRQ3 Also check any jumpers f...

Page 147: ... the printer baud rate word size stop bits parity and handshaking Printer port LED stays on Printer is off line Make sure printer is on line Data does not print continued HP LaserJet gives Error 22 message Error in serial printer cable no data flow control Check flow control between M24SII and printer A way to check is to force an error condition at the printer i e remove paper tray from laser pri...

Page 148: ... a PC running a terminal emulation program TERM supplied by BayTech or another program such as CrossTalk Cannot configure Model 24SII DES continued Port LEDs are illuminated when trying to access configuration mode User activity Wait until current activity between PC and printer is completed There should be no red LEDs illuminated when trying to enter the configuration mode Bad PC COM port Try a d...

Page 149: ...lect Code may be going out on wrong port e g Port Select Code is going out LPT1 and Model 24SII DES is connected to COM1 Also make sure selected port is designated as a printer port and not as a computer port Improper Port Select Sequence Match Port Select Code you are sending to Port Select Code specified in configuration mode Check case of Port Select Code upper or lower Also remove any spaces b...

Page 150: ...ration mode Port selected is designated as a computer port e g computer to modem connection Send the disconnect sequence which consists of the Port Select Code followed by a terminating character OD Hex enter return or OA Hex line feed Print jobs are lost when multiple users are sending print jobs Printer port is not connected or is connected to a powered down printer Data is being routed to a pow...

Page 151: ... PROBLEM SYMPTOM CAUSE SOLUTION connection is made between modem communicatio n software and Model 24SII DES the computer normally uses to print with ...

Page 152: ...47 52 54 56 64 65 67 78 ASCII character string 47 78 Asynchronous 8 108 Autobaud detect 60 Autoexec 23 25 B Baud rate 3 6 16 17 20 49 59 60 67 68 80 83 96 138 139 140 142 Bidirectional 6 8 16 20 35 36 38 41 42 49 57 81 83 96 112 113 116 Bit bucket 142 Buffer 2 3 8 9 27 30 49 51 52 54 57 61 64 66 83 119 121 123 Buffer clearing 56 Buffer expansion 119 121 123 buffering of print data 51 55 Busy messa...

Page 153: ...9 Computer to computer communication 14 46 48 49 57 Computer to computer connection 57 59 Computer to peripheral 49 51 Computer to peripheral communication 49 COMX 15 24 138 Configuration mode 3 11 15 16 18 38 41 51 52 66 69 79 81 84 96 122 124 128 138 142 Configuration port 3 15 16 66 68 139 Connectors 2 8 9 14 25 27 30 33 35 104 107 109 112 114 Contending 52 Contention mode 6 15 19 22 50 52 53 1...

Page 154: ...50 52 69 70 72 84 94 95 Dimensions 5 8 9 Disconnect code 21 Diskette 12 13 67 DOS 17 21 23 24 47 50 52 54 56 64 65 138 141 Draftmaster 3 DSR 17 18 30 33 137 139 141 DTE 8 14 27 28 30 31 33 117 127 137 DTR 8 17 18 27 30 33 36 39 49 55 61 62 140 142 Dumb terminal mode 139 Duplex 8 14 17 57 59 Dynamically allocated buffer 2 55 E EIA 232 8 25 27 28 30 31 33 35 40 104 107 108 110 111 112 115 117 127 EI...

Page 155: ... Flow control buffer 8 9 Form feed mode 3 6 7 15 21 69 70 72 84 87 88 Full duplex communication 14 17 57 59 G H GND 28 31 33 36 40 Handshake In 33 36 40 44 Handshake Out 33 36 39 42 Handshaking 8 9 11 17 18 28 31 36 38 42 44 61 64 80 128 137 141 Hewlett Packard 104 HP 3000 option 65 HSI 8 36 37 43 45 HSO 8 36 37 42 45 ...

Page 156: ... 74 100 102 107 112 114 137 IC 122 125 128 In line spoolers 98 Indicators 5 Input Flow Control 64 Input inactivity timeout 3 6 7 15 21 48 49 54 56 69 70 72 84 86 142 Intermix 142 J K L Jumper 35 110 Kermit 58 L shaped 117 Laser 1 19 50 139 140 Laserjet 3 1 21 65 104 139 LED 5 14 18 55 121 123 125 137 141 Logical name 6 7 15 19 46 50 69 76 79 80 84 85 87 88 90 95 LPT 1 4 43 116 LPTx 23 138 141 C ...

Page 157: ...mory expansion module 121 123 124 MicroPro 3 Minimum size print job 6 56 Mirror 58 Missing characters 140 Modem 1 5 11 46 58 60 96 108 142 Modem sharing 59 96 Modular connectors 2 14 33 35 109 Module number 3 16 18 47 50 52 54 57 59 64 67 70 77 94 95 Mounting 5 N O P Non printable characters 19 78 Non volatile memory 3 5 6 74 76 78 80 86 88 89 91 93 95 Off Line message 58 Ohm meter 139 140 On Line...

Page 158: ...78 84 86 141 142 C 142 Port Select Mode 3 7 15 20 21 48 53 56 69 70 72 79 80 84 86 141 Port select sequence 22 47 48 50 52 54 58 64 65 94 141 Port selection 7 139 141 Power consumption 8 9 Power cord 14 110 117 119 121 123 125 127 137 Power supply 5 Power switch 14 117 119 121 123 125 127 Print schedule 22 69 70 72 84 92 93 Printer assignment 3 6 7 15 19 22 50 52 69 70 72 84 94 95 Printer port 2 6...

Page 159: ... 33 37 49 107 109 111 117 127 RTS 17 18 27 30 33 RX 27 28 30 31 33 36 39 41 44 RX 36 37 41 44 RX 36 37 41 44 S Serial number 98 Serial port configuration 3 11 20 24 49 69 72 80 84 140 Serial to parallel 46 Shielded 99 Single channel bus speed 5 Software drivers 98 Specifications 5 99 Spooling 2 3 55 61 63 Status 18 19 69 72 76 78 81 82 84 86 93 98 128 138 Stop bits 3 7 17 20 49 80 83 138 139 C 140...

Page 160: ...48 49 54 56 69 72 79 80 84 85 86 141 142 Tran x 1 4 25 37 42 43 45 110 111 116 Troubleshooting 137 TX 27 28 30 31 33 36 38 40 44 TX 36 37 41 44 TX 36 37 41 44 U V Unidirectional 2 6 8 20 35 36 39 40 42 45 49 82 96 114 115 116 Upgrade 119 121 128 User defined 53 78 User programmable 6 46 VAC 5 14 Voltage 27 61 Volts 28 31 139 W Warranty 5 97 Weight 5 Word Perfect 65 Word processing programs 64 Word...

Page 161: ... X Y Z X Modem 58 XMIT 20 64 72 81 83 XON XOFF 3 6 8 11 16 20 28 31 36 38 41 49 60 62 64 67 80 83 116 140 XON XOFF handshaking 11 36 38 41 62 64 80 ...

Page 162: ... plotters modems and other peripherals These models allow any of your computers to access any of your peripherals and talk to other computers so files can be transferred and data shared Plus a built in buffer spools output data until your peripherals can receive it freeing your computers to go on to other tasks Models come in four eight and ten port sizes plus all have 256KB buffer Eight and ten p...

Page 163: ... The LaserShare device for the Brother HL8e and HL8v is referred to as LaserShare 4CB This device is available with four 4 serial computer ports and a fixed buffer size of 256KB Tran x high speed parallel serial converter products allow you to extend parallel cables to 1000 feet and allow your network server graphics workstation or PC to send receive data at speeds up to 46 000 characters per seco...

Page 164: ...nd demultiplex four or eight communications channels over a single channel This single channel is typically a telephone line or cable The TX24 will multiplex and demultiplex up to twenty channels Programmable features include serial port parameters baud rate word size etc data flow control user programmable strings to be sent to an external modem and remote diagnostics configuration capability The...

Page 165: ...rror correction ensures that the BX9600 provides accurate transmission The BX2448 is a V 22 bis external modem which uses deal up or leased telephone lines and comes equipped with many advantageous features such as MNP Class 5 data compression which enables data transmission at speeds to 4800 bps and MNP Classes 2 4 error correction A wide selection of user programmable features allows you to cust...

Page 166: ... out to either 4 or 8 peripheral devices while sending data from a single selected peripheral device back to the host device This unit is also capable of operating in a port expansion mode such as the A Series Auto T Switch T Series Allows a group of up to 6 terminals to switch between two computer systems NOTE All ports on the 500 Series are standard with EIA 232 ports EIA 422 and Current Loop po...

Page 167: ...NOTES ...

Page 168: ...NOTES ...

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