PC COM 8 PORT RS-232/RS-422 CARD USER MANUAL @=l*
Contents
1. 5 53 m Daisy Chain Connection 54 n AT amp T UNIX Configuration Interactive UNIX 57 o FIFO Chips for Multi user 005 63 p FIFO Chips for 65 g Warranty 69 Rev Date 1992 APR 15 CHAPTER 1 INTRODUCTION The PC COM 8 port serial adapter provides eight asynchronous serial communication ports RS232C which link the computer and serial peripheral devices such as modems serial printers plotters etc The PC COM 8 port adapter is particularly suited to facilitate the connection of terminals VDUs in multi user Operating systems Each board is supplied complete with cables and an expansion box containing eight female D25 sockets or RJ11 connectors without the expansion box The PC COM board may be installed in any IBM PC XT PC AT 386 or hardware compatible system To accommodate a variety of operating systems three switch banks permit maximum flexibility of configuration You may select which interrupt IRQ2 IRQ7 I O address and interrupt vector you desire CHAPTER 2 UNPACKING INFORMATION Check that your PC COM package includes the following items PC COM 8 port adapter User manual PC COM software One of following cables PCCOM 8 B2. Transmit Data Receive Data S Reguest to Send Clear to Send The symbol represents a transmit current The symbol represents a receive current 20 C 2 Cable Connections TO connect RS422 ports to other DATA TERMINAL EQUIPMENT DTE devices we recommend the use of DTE to DTE configuration which is shown as follows HOST REMOTE PC RS422 PC RS422 Ground Ground Transmit Data Receive Data Receive data Transmit data Request to Send Clear to Send Clear to Request to Send Transmit Data Receive Data Receive Data Transmit Data Request to Send Clear to Send Clear to Send Request to Send 21 APPENDIX D NULL MODEM AND CABLE D 1 Null Modem Connections RS232 If the software supplier or operating system does not specify a particular cable configuration we recommend you use the following null modem cable when XON XOFF is utilized Host Remote 2 74 3 qY 2 4 4 5 5 0 6 6 7 7 8 8 20 20 If hardware handshaking is necessary use the following cable Host Remote 2 Pr 3 4 2 4 4 5 5 6 20 qo 7 8 8 20 6 Some serial devices have the buffer control signal on pin 19 in which case pin 6 on the host is connected to pin 19 on the remote device 23 D 2 Modem Connections A straight through cable is required e g pin 2 to pin 2 pin 3 to pin 3 etc Host
3. damage resulting from incorrect use electrical interference accident or modification of the product All goods returned for warranty repair must have the serial number intact Goods without serial numbers attached will not be covered by the warranty Transportation costs for goods returned must be paid by the purchaser Repaired goods will be dispatched at the expense of PC COM To ensure that your PC COM product is 70 covered by the warranty provisions it is necessary that you return the Warranty card Under this Limited Warranty PC COM s obligations will be limited to repair or replacement only of goods found to be defective as specified above during the warranty period PC COM is not liable to the purchaser for any damages or losses of any kind through the use of or inability to use the PC COM product PC COM reserves the right to determine what constitutes warranty repair or replacement Return Authorization It is necessary that any returned goods are clearly marked with an RA number that has been issued by PC COM Goods returned without this authorization will not be attended to 71 NOTE NOTE NOTE NOTE NOTE THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPLY WITH THE LIMITS FOR A CLASS A DIGITAL DEVICE PURSUANT TO PART 15 OF THE FCC RULES THESE LIHITS ARE DESIGNED TO PROVIDE REASONABLE PROTECTION AGAINST HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPE
4. driver provides up to 2 cards in the system Tt uses the external driver generic to drive 16550 chips with FIFO Before use the DRM16 SYS driver please insert protect key dongles into your printer adapter Under Dr DOS please use daisy chain configuration The communication protocol are 1 None 2 XON XOFF 3 DTR DSR 4 CTS RTS The installation procedures are shown in the following 1 Copy DRM16 SYS file from distribution disk into OSUTILS directory C gt copy A DRM16 SYS C OSUTILS 2 Add command into CConfig SYS file DEVICE C OSUTILS DRM16 SYS Mxxx yyy SXXxX yyy 1n 63 4 for master board for second board for IRQ for I O port address for interrupt vector the driver add 2 automatically n for IRQ2 to IRO7 m The default setting is 180 1 0 5280 2 0 15 TO use setup program to setup serial ports The setup program is provides from multi user DOS please note that you must select 1 Generic own driver 2 16 ports 3 PC terminal when you setup system Reboot the system 64 APPENDIX FIFO CHIPS FOR UNIX To use the FIFO chips and FIFO driver under UNIX XENIX operating system please note us for extra charge The UNIX XENIX drivers are used to drive 16550 chips with FIFO Before use the device driver please insert protect key dongles into your printer adapter We provides SCO AT amp T and INTERACTIVE UNIX XENIX drivers in the
5. kit Expansion box and cables PCCOM 8 RJ kit Eight RJ 11 connectors PCCOM 8 DB kit DB37 cables Warranty form CHAPTER 3 SYSTEM REQUIREMENTS Before installing your PC COM 8 adapter make sure that The host computer is an IBM PC XT PC AT PC 386 or compatible The three switch banks correctly configured to coincide with the operating system you are using The operating system you intend to use is capable of driving multiple serial ports CHAPTER 4 HARDWARE INSTALLATION Your PC COM 8 port adapter is designed to be inserted in any available slot in your PC XT PC 386 or compatible In order to gain access to the expansion slots follow the steps listed below 1 Turn off all power to your computer all peripheral devices before installing your PC COM 8 port adapter 2 Remove the cover of the computer 3 Insert the preconfigured PC COM 8 port adapter into any available slot Make sure the adapter is firmly seated in the chosen slot 4 Replace the cover of the computer 5 Connect cables to either the 8211 or D25 connectors as required CHAPTER 5 SWITCH SETTINGS 5 1 Introduction The three switch blocks on the PC COM 8 port adapter must be configured correctly in accordance with the operating system you are using SWl Switch 1 Determines the address of the UARTs I O address SW2 Switch 2 Selects which interrupt will be used in the range IRQ2 thr
6. 2 3 4 5 6 7 B ON 1 2 3 4 5 6 7 P MP awaq PPP ON 1 2 3 4 5 8 7 8 0 1 2 3 4 5 6 7 8 ON 1 2 3 4 5 6 7 m APPENDIX CABLING INFORMATION RJ11 1 RJ11 Connectors The communication interface follows the EIA RS232C standard Each RS232 port has one RJ 11 female connector for connection to peripheral device The board mounted female 11 pin identification is shown in the following 123456 RJ lt 1i RS 232C Pin Singal Name Signal Direction 1 Chassis Ground GND Common 2 Signal Ground SG Common 3 Transmit Data TxD Output 4 Receive Data RxD Input 5 Clear to Send CTS Input Data Set Ready DSR Input 6 Data Terminal Ready DTR Output 15 RJ 11 to DB25 expansion cable assignment is shown in the following GND 56 RxD DSR amp CTS DTR A 2 Cable Connections To connect PC COM 8 port adapter to other DATA TERMINAL EQUIPMENT DTE devices we recommend the following connection method RJ 11 Signal Terminal Signal GND GND SG SG TxD RxD RxD 4 TxD CTS amp DSR lt DTR DTR gt CTS amp DSR 16 APPENDIX B 85232 CABLING INFORMATION EXPANSION BOX KIT OR DB37 KIT B 1 PC COM with Expansion Box PC COM with the expansion box provides an EIA RS232C interface with DB25 female connectors for each port B 2 PC COM with DB37 The communication interfa
7. 3 nl loa 140H 27 B Secondary adapter SW1 SW 2 SW aaa 1C 0H 2 Enter system maintenance mode Boot the XENIX operating system then enter system maintenance mode 3 Install serial port Type mkdev serial 4 The screen will display You would like to install a 1 1 port card 2 2 port card 3 4 port card 4 5 port card 5 8 port card Select an option or enter q to quit 28 Enter number 5 then press return o The screen will display The card is configured as 1 COMI 2 2 3 COM3 3 Select an option or enter h for help or q to quit Enter number 1 and press return the system will configure eight serial ports for the primary adapter These eight ports are ttyla ttylb ttylc ttyld ttyle ttylf ttylg ttylh If you install a secondary adapter repeat step 3 to 5 and enter number 2 to select the COM2 configuration The system will then configure another eight serial ports tty2b tty2c tty2e tty2f tty2g tty2h 6 Enable sixteen serial ports Enable each serial port by using the 29 enable TE GE H k GE GRE 7 connector Connect command enable enable enable enable enable enable enable enable enable enable enable enable enable enable enable enable Please type ttyla ttylb ttylc ttyld ttyle ttylf ttylg ttylh tty2a tty2
8. 8 port adapter is installed then set I O port address 100H Interrupt IRQ5 Interrupt vector OFF SW1 SW 2 SW 3 38 2 Software installation We assume the eight I O port addresses are 280H 288H 290H 298H 2 2A8H 2 and 2B8H The interrupt is set to IRQ2 We also assume your PC MOS 386 can support more than 9 users a Prepare CONFIG SYS file The contents of CONFIG SYS includes DEVICE 52TERM SYS DEVICE SERIAL SYS AD 280 HS X IN 2 AD 288 HS X IN 2 AD 290 HS X IN 2 AD 298 HS X IN 2 AD 2A0 HS X IN 2 AD 2A8 HS X IN 2 AD 2BO HS X IN 2 AD 2B8 HS X IN 2 There are several serial device drivers Supported by PC MOS 386 You must select the device driver according to the terminal type connected In this example we use a VT52 as the terminal device The following device drivers are supported by PC MOS 386 PCTERM For PC type terminals Ampex 232 Emulink software Falco 5500 Kimtron KT 7 39 Link Technologies 1 and PCterm Televideo PCS1 and Wyse Wy 60 TTTERM For Teletype type terminals AVTERM For ADDS Viewpoint type terminals ADM Televideo 910 52TERM DEC VT 52 IBM 3101 19TERM Zenith Z 19 TVTERM Televideo 912C 920C 925 EXTERM Excel 42 44 ANTERM ANSI terminals After the device driver is declared you must enter your I O port a
9. ATION N 1 Hardware Configuration For AT amp T UNIX and INTERACTIVE UNIX the special device drivers are provided the distribution diskette The hardware configurations are shown in the following For the PC COM 8 port card only IRQ4 IRQ3 are selected 1 first adapter 1 0 port address 100H Interrupt level IRQ4 Interrupt vector 140H SW3 57 dev ttyj31 dev ttyJ31 dev ttyj32 dev ttyJ32 dev ttyj33 dev ttyJ33 dev ttyj34 dev ttyJ34 dev ttyj35 dev ttyJ35 dev ttyj36 dev ttyJ36 dev ttyj37 dev ttyJ37 dev ttyj38 dev ttyJ38 58 2 second adapter I O port address 180H Interrupt level IRQ3 Interrupt vector 1COH SW1 SW 2 SW 3 dev ttyj41 dev ttyj42 dev ttyj43 dev ttyj44 dev ttyj45 dev ttyj46 dev ttyj47 dev ttyj48 59 dev ttyJ41 dev ttyJ42 dev ttyJ43 dev ttyJ44 dev ttyJ45 dev ttyJ46 dev ttyJ47 dev ttyJ48 N 2 Software Installation The installation procedure for the device drivers is described as follows 14 2 Login as a root user Backup original UNIX kernel please type t cd unix unix bck Insert distribution diskette which contains device drivers into floppy disk drive A then copy the files from the distribution diskette toa temporary directory ftar xvf dev fd048ds9 PC COM To install device drivers please type cd PC COM sh setup The setup program will ask you 1 How many adapte
10. H port 4 298H port 5 2 6 2A8H port 7 2BOH port 8 2B8H If port 9 port port port port port port port 308H 310H 318H 320H 328H 330H 338H 34 SW 3 ON an additional PC COM 8 port adapter is installed then OFF serial APPENDIX PICK CONFIGURATION Refer to PICK user installation guide for more information If selecting IRQ3 or 4 be sure to disable existing or COM2 1 First adapter ON 1 2 3 4 lata 100H 4 Fourth adapter ON 1 2 3 4 oui fias na 200H IRQ2 240H 35 APPENDIX CONCURRENT DOS CONFIGURATION MULTI USER DR DOS CONFIGURATION Set I O port address to 280H interrupt to IRQ3 and interrupt vector to 270H SW1 SW 2 SW 3 To install device drivers please run the SETUP program then follow the menu instructions to set up I O port address communication parameters such as baud rate parity qata bits ias etc and handshaking For multi user DOS Dr DOS configuration please set I O port address to 280H and interrupt vector to 270H Any interrupt IRQ3 to IRQ7 is used 36 APPENDIX PC MOS 386 CONFIGURATION J 1 Hardware configuration You may set arbitrary 1 0 addresses interrupt and interrupt vectors However we suggest you use as follows I O port address 280H Interrupt IRQ2 Interrupt vector OFF SW1 SW 2 SW 3 37 If additional PC COM
11. PC 8 PORT RS 232 RS 422 CARD USER MANUAL 5 r 149 taper ATA 2 RCI 8 PORT RS 232 422 CARD B PU pirit pi TET PC COM USER MANUAL 8 PORT SERIAL ADAPTER CONTENTS CHAPTER 1 1 CHAPTER 2 Unpacking Information 2 CHAPTER 3 System Requirements 3 CHAPTER 4 Hardware Installation 4 CHAPTER 5 Switch 5 APPENDICES a Cabling Information 11 15 b RS232 Cabling Information Expansion Kit and DB37 17 c 5422 Cabling Information Expansion Box Kit and DB37 20 d Null Modem and Modem Cables 22 e SCO XENIX Configuration iesus nU eee 25 f PC COM Diagnostics Under MS DOS 31 g Multilink Configuration eee 33 h Pick Configuration 35 Concurrent Dos Contiguration TN 36 j PC MOS 386 Configuration Multi user Dr DOS Contiguration 37 k IBM XENIX Configuration cs 45 Interrupt Latch
12. RATED IN A COMMERCIAL ENVIRONMENT THIS EQUIPMENT GENERATES USES AND CAN RADIATE RADIO FREQUENCY ENERGY AND IF NOT INSTALLED AND USED IN ACCORDANCE WITH THE INSTRUCTION MANUAL MAY CAUSE HARMFUL INTERFERENCE TO RADIO COMMUNICATIONS OPERATION OF THIS EQUIPMENT IN A RESIDENTIAL AREA IS LIKELY TO CAUSE HARMFUL INTERFERENCE IN WHICH CASE THE USER WILL BE REQUIRED TO CORRECT THE INTERFERENCE AT HIS OWN EXPENSE
13. Remote 2 2 3 3 4 4 5 5 6 6 7 7 8 8 20 20 22 22 24 APPENDIX E SCO XENIX CONFIGURATION E 1 Device Mapping l Primary adapter Using primary adapter as COMI I O address is 100H Interrupt vector is 140H Interrupt is IRQ4 SW 1 ON 1 2 3 4 julu SW 2 dev ttyla dev ttylb dev ttylc dev ttyld dev ttyle dev ttylf dev ttylg dev ttylh 25 SW 3 ON 1 dev ttylA dev ttylB dev ttylC dev ttylD dev ttylE dev ttylF dev ttylG dev ttylH Secondary adapter Using secondary adapter as COM2 I O address is 180H Interrupt vector is 1 Interrupt is IRQ3 SW 1 dev tty2a dev tty2b dev tty2c dev tty2d dev tty2e dev tty2f dev tty2g dev tty2h 26 dev tty2A dev tty2B dev tty2C dev tty2D dev tty2E dev tty2F dev tty2G dev tty2H Under the SCO XENIX operating system the primary adapter is configured so that all ports interrupt on IRQ4 If secondary adapter is used it should be configured to interrupt IR03 E 2 Installation for SCO XENIX After the hardware configuration is set please install the software drivers The installation procedure is described as follows 1 Select interrupt level The first PC COM 8 port serial adapter should be strapped at interrupt 4 COMI The second PC COM 8 port serial adapter should be set to IRQ3 which corresponds to COM2 A Primary adapter SW
14. W 2 SW 3 dev tty32 dev tty33 dev tty34 dev tty35 dev tty36 dev tty37 dev tty38 dev tty39 49 2 Installation for the IBM XENIX Operating System The installation procedure for the device drivers is described as follows 1 Za Login as a root user Create a temporary directory and change default to this directory Please type mkdir usr temp cd usr temp where is the system prompt Insert distribution diskette which contains device drivers into floppy disk drive A then copy the files from the distribution diskette toa temporary directory Step 1 Copy batch file to usr temp please type doscp A copy chmod 0755 copy 50 Step 2 Copy device drivers to the temporary directory please type 4 To install device drivers please type setup The setup program will ask you HOW many adapters installed 1 2 3 4 After you answer the system will take about four minutes to install the device drivers After installation the old kernel is renamed as XENIX SAVE and the new system kernel is installed as XENIX 5 Reboot the system Now your new XENIX system which includes device drivers is activated 51 6 Enable each terminal by using the enable command Please type enable dev ttyO2 H enable dev ttyO3 enable dev tty39 7 Connect each terminal to RJ 11 or DB25 connector NOTE If the new system
15. ata bits and 1 stop bit 3 Terminal setup Suppose you use PC and VTERM software to emulate VT52 you must press CTRL which represents ESC then press B which will refresh the bottom 24 lines lines 2 through 25 of the display on the video screen of a terminal Otherwise your Cursor may disappear 44 APPENDIX CONFIGURATION 1 Hardware Configuration Under the IBM XENIX operating system a maximum of four adapters can be added to the PC AT 386 or compatible to provide thirty two ports The hardware configuration is shown in the following 1 first adapter I O port address 280H Interrupt level IRQ4 Interrupt vector 2COH SW 1 SW 2 SW 3 tg 2 COH 45 device dev tty02 dev tty03 dev ttyO4 dev tty05 dev tty06 dev tty07 dev tty08 dev tty09 46 2 second adapter I O port address 180H Interrupt level IRQ3 Interrupt vector 1 SW 1 SW 2 SW 3 device name dev ttyl2 dev ttyl3 dev tty14 dev tty15 dev ttyl6 dev tty17 dev tty18 dev tty19 47 3 third adapter I O port address 100 Interrupt level IRQ5 Interrupt vector 140 SW 2 SW 3 dev tty22 dev tty23 dev tty24 dev tty25 dev tty26 dev tty27 dev tty28 dev tty29 48 4 fourth adapter I O port address 300H Interrupt level 1807 Interrupt vector 340H SW1 S
16. b tty2c tty2d tty2e tty2f tty2g tty2h each terminal to an 11 or DB25 30 APPENDIX F COM DIAGNOSTICS UNDER MS DOS F 1 Diagnostic Under MS DOS The SUPER program provides a diagnostic routine to test your PC COM 8 port serial adapter under MS DOS It provides internal and external tests loopback plug must be connected to each port being tested Pins 2 TxD and 3 Rxd must be shorted together in the plug To test your PC COM 8 port serial adapter under MS DOS please type A SUPER A means system prompt the screen will display SUPER eight RS232C diagnostic Please make sure a loopback plug be connected Input delay cycle 386 4000 1000 600 For an XT you may type a number larger than 600 For an or 386 you may type a number larger than 1000 The number is dependent on your machine cycle If your machine cycle is very fast type a larger number to synchronize the 1 0 speed of the 16450 chips 31 2 PC COM Software The PC COM software provides device drivers library routines and virtual terminal programs under MS DOS Please see PC COM software manual for more details 32 APPENDIX MULTILINK CONFIGURATION Modify I O port addresses by typing mlcustom mlink com when the menu appears change port addresses select option 1 to Modify the I O 33 addresses your PC COM 8 port adapter follows port 1 280H port 2 288H port 3 290
17. ce follows the EIA RS232C standard Two special cables with a DB37 connector are provided in the package This cable connects the signals from the DB37 connector into four standard DB25 connectors Pin Locations for Male Connectors 17 B 3 0825 Connectors RS232C Type The signal assignments for a DB25 connector are shown below DB25 Pin 1 2 3 4 5 6 7 8 20 22 Signal Chassis Ground GND Transmit Data TxD Receive Data RxD Request to Send RTS Clear to Send CTS Data Set Ready DSR Signal Ground SG Data Carrier Detect DCD Data Terminal Ready DTR Ring Indicator 18 RS 232C Name standard Signal Direction Common Output Input Output Input Input Common Input Output Input B 4 Cable connections To connect the PC COM 8 port adapter to other DATA TERMINAL EQUIPMENT DTE devices we recommend using a DTE to DTE connection as shown below Signal Pin Pin 4 Signal DTE GND 1 1 GND TxD 2 3 RxD RxD 3 2 TxD DTR 20 6 DSR DSR 6 20 DTR SG 7 7 SG DCD 8 4 RTS 5 CTS HTS 4 CTS 5 8 DCD Recommended DTE to DTE Connection Null Modem 19 APPENDIX 85422 CABLING INFORMATION EXPANSION BOX KIT OR DB37 KIT C 1 DB25 Connectors RS422 Type The signal assignments for standard DB25 connector are shown in the following 7 Ground Transmit Data Receive Data Request to Send Clear to Send 4
18. ddresses 40 handshaking protocol and interrupt In this example I O port addresses are 280H 288H 290H 298H 2 2A8H 2BOH and 2B8H and handshaking protocol is set to X receiver controlled and off Interrupt level is set to IRQ2 Where tells MOS that the next line is continuation of the attributes We explain each parameter setting in the following the port address HS handshaking protocol can be set to N None D DTR X P XPC results in DTR XPC and RTS IN interrupt level b Prepare AUTOEXEC BAT file The contents of AUTOEXEC BAT file includes ADDTASK 32K 1 TTY1 52TERM 1 9600 ADDTASK 32K 2 TTY2 52TERM 2 9600 ADDTASK 32K 3 TTY3 52TERM 3 9600 ADDTASK 32K 4 TTY4 52TERM 4 9600 ADDTASK 32K 5 TTY5 52TERM 5 9600 ADDTASK 32K 6 TTY6 52TERM 6 9600 ADDTASK 32K 7 TTY7 52TERM 7 9600 ADDTASK 32K 8 TTY8 52TERM 8 9600 MOS SERINIT 1 9600 N 8 1 41 MOS SERINIT 2 9600 N 8 MOS SERINIT 3 9600 N 8 MOS SERINIT 4 9600 N 8 MOS SERINIT 5 9600 N 8 MOS SERINIT 6 9600 N 8 MOS SERINIT 7 9600 N 8 MOS SERINIT 8 9600 N 8 If you have multi user capability you must use the ADDTASK command to create user partitions The ADDTASK command may be included in the AUTOEXEC BAT file to add users when you boot the computer automatically The syntatic specification of ADDTASK 15 ADDTASK memsizeK task ID class startup term ID port baud rate mem
19. distribution disk For UNIX system the hardware configuration and software installation procedures are the same APPENDIX please refer it For SCO XENIX system the hardware configuration is shown in the below and the software installation procedure is the same as APPENDIX N 65 1 first adapter I O port address 100H Interrupt level IRQ3 Interrupt vector 140H SW 1 SW 2 SW 3 dev ttyj31 dev ttyj32 dev ttyj33 dev ttyj34 dev ttyj35 dev ttyj36 dev ttyj37 dev ttyj38 66 dev ttyJ31 dev ttyJ32 dev ttyJ33 dev ttyJ34 dev ttyJ35 dev ttyJ36 dev ttyJ37 dev ttyJ38 2 second adapter I O port address 180H Interrupt level IRQ4 Interrupt vector 1COH SW 1 SW 2 SW 3 dev ttyj41 dev ttyj42 dev ttyj43 dev ttyj44 dev ttyj45 dev ttyj46 dev ttyj47 dev ttyj48 67 dev ttyJ41 dev ttyJ42 dev ttyJ43 dev ttyJ44 dev ttyJ45 dev ttyJ46 dev ttyJ47 dev ttyJ48 enable the I O port under SCO operating system please use enable command which is provided by SCO system DO NOT USE entty COMMAND which is used under AT amp T and INTERACTIVE UNIX Also use disable command to disable the I O port under SCO operating system 68 APPENDIX WARRANTY INFORMATION Q 1 Copyright Copyright 1992 DECISION COMPUTER INTERNATIONAL CO LTD all rights reserved No part of PC COM software and manual may be reproduced transmitted transcribed or translated
20. fails to reboot boot the original system using the command hd XENIX SAVE 52 APPENDIX INTERRUPT LATCH ADDRESS The interrupt latch address is used to detect which of the eight channels is creating the interrupt The interrupt latch address is set to the interrupt vector address 2H The relationship between each port corresponds to the interrupt indicator as shown in the following When the corresponding bit 15 0 an interrupt occurred otherwise if the bit is 1 then no interrupt occurred Port Port Port Port Port Port Port Port J Ov Ol I gt CO S The interrupt vector must start on multiple of 10H 53 APPENDIX M DAISY CHAIN INTERRUPT The daisy chain interrupt function provides more than one PC COM 8 port board to use common interrupt The JP1 is used to identify master or slave board and the IN OUT jumper is used to connect daisy chain JPl Select master or slave JP1 54 Suppose you use one interrupt line to 24 ports you must select one board as master board which generate interrupt and the other two boards are slave We show how to connect daisy chain interrupt in the following DB37 Pin board Master D t 2 3 4 Please note that when the daisy chain function is used only set interrupt switch 2 on master board do not set IRQ on slave board 55 RJ 11 board 56 APPENDIX AT amp T UNIX CONFIGURATION INTERACTIVE UNIX CONFIGUR
21. into any language or computer language in any form or by any means electronic mechanical magnetic optical chemical manual or otherwise without the prior written permission of DECISION COMPUTER INTERNATIONAL CO LTD 4F No 31 3 Alley 4 Lane 906 Min Shen East Road Taipei Taiwan R O C FAX 886 2 7665702 TELEX 16059 DECISION TEL 02 766 5753 7659782 769 5786 Each piece of PC COM package permits user to use PC COM only on a single computer a registered user may use the program on a different computer but may not use the program on more than one computer at the same time Corporate licensing agreements allow duplication and distribution of specific number of copies within the licensed institution Duplication of multiple copies is not allowed except through execution of a licensing agreement Welcome call for details 69 0 2 Warranty Information PC COM warrants that for a period of one year from the date of purchase unless otherwise specified in the warranty card that the goods supplied will perform according to the specifications defined in the user manual Furthermore that the PC COM product will be supplied free from defects in materials and workmanship and be fully functional under normal usage In the event of the failure of a PC COM product within the specified warranty period PC COM will at its option replace or repair the item at no additional charge This limited warranty does not cover
22. ough IRQ7 SW3 Switch 3 Selects the interrupt vector address and determines which port is active when an interrupt occurs All addresses specified are in hexadecimal The actual interrupt latch address is set to the interrupt vector address set by switch 3 2H 3529195 1AN1133U U LE 92 sea w QUv9 ZEZ SH 413094 8 WOO Od 5 Asieq ETS LHOd 8 WO9 199 8S 19 219194 12 916016 MO15 930 1801 790151230 ja 18481403 872 uonoejes oAe S 18 Se N 3 Ca a A MS 2812 sseppv O I 1dnuueju Asieq 193 aS 401989A Z 8Q Qquvo ccv ctc sd 1 4 8 5 2 Selection of Switch Settings It is important to refer to the user manual supplied with your operating system to determine the correct configuration Although we provide installation advice for various Operating systems it is not possible to cover all systems this user guide Please contact your supplier if you have any difficulties with configuration IMPORTANT CARE MUST BE TAKEN IN SELECTING THE CONFIGURATION OF SWITCHES TO ENSURE YOU DO NOT DUPLICATE SETTINGS OF OTHER EQUIPMENT ALREADY INSTALLED IN YOUR COMPUTER DUPLICATION OF SETTINGS WILL RESULT IN MALFUNCTION OF ONE OR BOTH DEVICES Please refer to the following se
23. rs are installed 2 Which IRQ are selected 3 Communication parameters 60 After answer the above questions then the script will prompt you with The UNIX Operating System will now be rebuilt Please wait 5 Reboot the system Now your new UNIX system which includes device drivers is activated 6 Enable each terminal by using the entty command Please type entty ttyj11 3 entty ttyj12 7 Connect each terminal to DB25 connector NOTE 1 If the new system fails to reboot please boot the original system For interactive UNIX when system is boot please press return key to halt autoboot then type unix bck 61 For AT amp T UNIX please modify AUTOBOOT NO parameter from etc default boot file then type unix bck Please note that before you install your distribution disk you need modify AUTOBOOT parameter To remove device driver from UNIX please type cd PC COM i sh remove After installation please enable each port by entty command and disable port by distty command To change baud rate please update etc inittab and etc conf cf d init base files To use local printer connect auxiliary port from terminal please check your terminal manual to send leading code to control your terminal to bypass data to printer 62 APPENDIX O FIFO CHIPS FOR MULTI USER DOS To use the FIFO chips and FIFO driver under multi user DOS Dr DOS please note us for extra charge The DRMDOS
24. size Enter the amount of memory you want to allocate to the user it must be at least 32K The memory size should be large enough to facilitate whatever applications are to be run in the partition task ID Enter up to two digits for the task number to assign to the partition Zero is reserved for the partition in base memory class Enter the security class 42 startup enter up to eight characters for the name of a startup batch file for the task term ID Enter device driver name which is specified in the step a port Enter the number of the serial port to which a terminal for this partition is connected baud rate Enter the baud rate for the serial port In this example we add eight serial ports in the system and each memory partition occupies 32K bytes of memory When we turn on the first terminal I O port address 280H it will run the auto execution file which is TTYl BAT The task ID of the first terminal is 1l After we create a user partition with the ADDTASK command we must set the communication parameters for the serial ports The MOS SERINIT command is used to specify communication parameters which described as follows 43 MOS SERINIT n r p b s the I O port number the baud rate the parity may be N None E Even O Odd the number of data bits the number of stop bits In this example set no parity baud rate 9600 8 d
25. ttings for each switch block If you are installing more than one board do not duplicate switch settings for any parameter I O PORT ADDRESS UART ADDRESS SWITCH 1 000H 200H N n o M SICH w CM CM EN I NM s EN 8 CM m I O 00 E M M EN 9 CE O O O 1 CM m M E EN M 5 o s 5 M CM 1 A e I 9 CM N 5 CHR I 9 o o I TEE EN am gt o I 216 N u OQ O O NOTE The address selected must start on multiple of 40H block of 40H contiguous I O locations will be used starting from the selected address pm i tt SWITCH 3 INTERRUPT VECTORS eel al al IMP Mit x lt o mu NE o CM J E Pis fe ha Ihi MEI gt Rix a I CM 5 TMP Ita tt PP hh ON 1 2 3 4 5 6 7 8 ON 1 2 3 4 5 6 7 8 ON 1 2 3 4 5 6 7 8 ON 12 3 4 8 6788 ON 1
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