LPCI-COM422-8 User Manual
Contents
1. Baud Rate Divisor x1 Divisor x8 Max Diff Cable Length 921600 1 250 ft 460800 S 2 550 ft 230400 4 1400 ft 153600 3 6 2500 ft 115200 1 8 3000 ft 57600 2 16 4000 ft 38400 3 24 4000 ft 28800 4 32 4000 ft 19200 6 48 4000 ft 14400 8 64 4000 ft 9600 12 96 Most Common 4000 ft 4800 24 192 4000 ft 2400 48 384 4000 ft 1200 96 768 4000 ft These are theoretical maximums for typical conditions and good quality cables based on the EIA 485 and EIA 422 standard for balanced differential drivers Table 5 1 Baud Rate Divisor Values In C the code to set the chip to 9600 baud is outportb BASEADDR 0x0C outportb BASEADDR 1 0 The second initializing step is to set the Line Control Register at Base Address 3 This register defines word length stop bits parity and the DLAB Bits 0 and 1 control word length and allow word lengths from 5 to 8 bits Bit settings are extracted by subtracting 5 from the desired word length Bit 2 determines the number of stop bits There can be either one or two stop bits If Bit 2 is set to O there will be one stop bit If Bit 2 is set to 1 there will be two stop bits Bits 3 through 6 control parity and break enable They are not commonly used for communications and should be set to zeroes 15 Manual LPCI COM422 8 Bit 7 is the DLAB discussed earlier It must be set to zero after the divisor is loaded or else there will be no communications The C command to s2. A maximum operating voltage range is from 6V to 6V allows for voltage attenuation that can occur on long transmission cables A maximum common mode voltage rating of 7V provides good noise immunity from voltages induced on the twisted pair lines The signal ground line connection is necessary in order to keep the common mode voltage within that range The circuit may operate without the ground connection but may not be reliable 20 Manual LPCI COM422 8 Parameter Conditions Min Max 030 Driver Output Voltage unloaded qw Jo o pv Driver Output Voltage loaded J sgpeng Ia Lo 0 0 EE eve E Driver Output Resistance Jam Driver Output Short Circuit Current W eeng 150 mA Driver Output Rise Time es sree 10 unit interval Receiver Sensitivity JI 4200 my Receiver Common Mode Voltage 7V Range Receiver Input Resistance t Table A 2 RS422 Specification Summary To prevent signal reflections in the cable and to improve noise rejection in both the RS422 and RS485 mode the receiver end of the cable should be terminated with a resistance equal to the characteristic impedance of the cable An exception to this is the case where the line is driven by an RS422 driver that is never tristated or disconnected from the line In this case the driver provides a low internal impedance that terminates the line at that end Note You do not have to add a terminator resistor to your cables when you use the card Terminati
3. UART Tx SCSI 2 CONNECTOR INTERFACE TRANSCEIVER HPBR 2150 OR EQUIVALENT HALF PITCH 50 PIN CHIP SIMILAR Figure 1 1 Block Diagram Only one serial channel shown 7 Manual LPCI COM422 8 Chapter 2 Installation A printed Quick Start Guide QSG is packed with the card for your convenience If you ve already performed the steps from the QSG you may find this chapter to be redundant and may skip forward to begin developing your application The software provided with this card is on CD and must be installed onto your hard disk prior to use To do this perform the following steps as appropriate for your operating system Configure Card Options via Jumper Selection Before installing the card into your computer carefully read Chapter 3 Option Selection of this manual then configure the card according to your requirements and protocol RS 232 RS 422 RS 485 4 wire 485 etc Our Windows based setup program can be used in conjunction with Chapter 3 to assist in configuring jumpers on the card as well as provide additional descriptions for usage of the various card options such as termination bias baud rate range RS 232 RS 422 RS 485 etc CD Software Installation The following instructions assume the CD ROM drive is drive D Please substitute the appropriate drive letter for your system as necessary DOS 1 Place the CD into your CD ROM drive 2 Type ejere to change the active drive to the CD ROM drive 3 Typ
4. 35 Ground through 100 Ohm R ale 3 3 GND Ground 6 al 8 o 10 Ground through 100 Ohm R 35 Ground through 100 Ohm R Lu Bing Lalin 12 Bou L lrar i 13 GND oam ss GND Ground 14 couts 99 outs a5 cou Lager 16 Ground through 100 Ohm R 41 Ground through 100 Ohm R azen ejos S slem Jajon 19 GND Ground 44 GND Ground 20 Dou La lmeg Table 6 1 Connection Pin Assignments 7 10 11 12 13 14 15 16 17 18 19 20 5 6 37 8 9 40 41 42 43 44 45 18 Manual LPCI COM422 8 ze ses 100 Ohm to Ground Table 6 2 Data Cable Wiring DB9M ___ DSub 9 pin Male Manual LPCI COM422 8 Appendix A Application Considerations Introduction Working with RS422 and RS485 devices is not much different from working with standard RS232 serial devices and these two standards overcome deficiencies in the RS232 standard First the cable length between two RS232 devices must be short less than 50 feet at 9600 baud Second many RS232 errors are the result of noise induced on the cables The RS422 standard permits cable lengths up to 5000 feet and because it operates in the differential mode it is more immune to induced noise Connections between two RS422 devices with CTS ignored should be as follows 7_ Log 7 D RX RX D Table A 1 Connections Between Two RS422 Devices A third deficiency of RS232 is that more than two devices cannot share the same cable
5. in equipment that uses mixed protocol communications Since the slave nodes never listen to another slave s response to the master a slave node cannot reply incorrectly 22 Manual LPCI COM422 8 Customer Comments If you experience any problems with this manual or just want to give us some feedback please email us at manuals accesio com Please detail any errors you find and include your mailing address so that we can send you any manual updates Dal t CES 1 0 PRODUCTS INC 10623 Roselle Street San Diego CA 92121 Tel 858 550 9559 FAX 858 550 7322 www accesio com 23 Manual LPCI COM422 8
6. 14 Table 5 1 Baud Rate Divisor Values A 15 Chapter 6 Connector Pin Assignments sssseseeeeeer ennen renere renerne 18 Table 6 1 Connection Pin Assignments ccceeeeeeeeeeeeeeeeeeeeeeeaeeeeaaeceaeeesaaeeesaaeseeeeeseaeeeseaeeseneeeeaes 18 Table 6 2 Data Cable Wiring DB9M 0 cccceceeeeeeeeeeeeeeeceeeeeeeaeeeeaeeseeeeesaaeeesaaeeeeeeeeeaeeesaeeseaeeeeaes 19 Appendix A Application Considerations 0 ccccccccceeceeceeeeeeeaeeeeeee scenes caaeeesaaeeeeeeeseaeeesaeeeeaaesennees 20 Table A 1 Connections Between Two RS422 Devices ccccceeceeeseeceeeeeceeeeeeaeeeeeeeseaeeetaeeneneeeeaes 20 Table A 2 RS422 Specification Gummanm ccceccceeeeeeeeeeeceeeeeeaeeeeaeeceeeeesaeessaaeseeeeeeeeeesaeeeeeeeeaes 21 Figure A 1 Typical RS485 Two Wire Multidrop Network ccccccceceeeeeceeeeeeeeeeeeeeeseeeeseaeeesaeeeneees 22 4 Manual LPCI COM422 8 Chapter 1 Introduction The card was designed for effective multipoint transmission in RS422 EIS422 protocol The card is 6 60 inches long and may be installed in an available 5V or 3 3V PCI expansion slot The card features eight independent asynchronous RS422 serial ports and type 16550 buffered UARTs The card meets Universal PCI and MD2 Low Profile PCI Bus Specifications RS422 Balanced Mode Operation The card supports RS422 communications and uses differential balanced drivers for long range and noise immunity It also has the c
7. DosDevices REG_SZ COM12 InterruptStatus REG_DWORD 0xFC40 PortIndex REG_DWORD8 As this example shows the shared IRQ status Register is located at Base address 0x40 Manual LPCI COM422 8 Chapter 3 Option Selection To help you locate the jumpers described in this section refer to the Option Selection Map at the end of this section Operation of the serial communications section is determined by jumper installation as described in the following paragraphs Terminations A transmission line should be terminated at the receiving end in its characteristic impedance Installing a jumper at the locations labeled LOAD INPUT apply a 1200 load across the receive input for RS422 operation Rx A through H 1202 0 1uF Rx Figure 3 1 Simplified Termination Schematic Data Cable Wiring SignalPin Connection Ain Aout Aout 100 Q to Ground Ain OO OO GO h Baud Rate Ranges The jumper labeled X8CLK is provided to select baud rates in either of two ranges When not installed the baud rate range is up to 115 200 baud When installed in the X8CLK the baud rate range is 200 to 921 600 baud 11 Manual LPCI COM422 8 o gt U BAUD x8 es rIomTOOUe fede cn ci cri CE FED 2 20 Figure 3 2 Option Selection Map 12 Manual LPCI COM422 8 Chapter 4 Address Selection The card uses one address space COM A COM B COM C COM D COM E COM F COM G and COM H each o
8. NSOURCE directory shows the BIOS calls used to determine the address and IRQ assigned to installed PCI devices In Windows the Windows sample programs demonstrate querying the registry entries created by PCIFind and NTIOPCI SYS during boot up to determine this same information 9 Manual LPCI COM422 8 Interrupts Please note that in Windows NT changes must be made to the system registry to support IRQ sharing The following is excerpted from Controlling Multiport Serial I O Cards provided by Microsoft in the MSDN library documentid mk ivt nt40res D15 S55FC HTM also available in the WindowsNT Resource Kit The Microsoft serial driver can be used to control many dumb multiport serial cards Dumb indicates that the control includes no on board processor Each port of a multiport card has a separate subkey under the HKLM CurrentControlSet Services Serial Parameters subkey in the registry In each of these subkeys you must add values for DosDevices Interrupt InterruptStatus PortAddress and Portlndex because these are not detected by the Hardware Recognizer For descriptions and ranges for these values see Regentry hlp the Registry help file on the WindowsNT Workstation Resource Kit CD For example if you have an eight port card configured to use address 0xFC00 with an interrupt of 05 the values in the Registry are Serial Subkey PortAddress REG_DWORD 0xFC00 Interrupt REG_WORD 5 DosDevices REG_SZ COM5 InterruptS
9. This is also true for RS422 but RS485 offers all the benefits of RS422 plus allows up to 32 devices to share the same twisted pairs An exception to the foregoing is that multiple RS422 devices can share a single cable if only one will talk and the others will all receive Balanced Differential Signals The reason that RS422 and RS485 devices can drive longer lines with more noise immunity than RS232 devices is that a balanced differential drive method is used In a balanced differential system the voltage produced by the driver appears across a pair of wires A balanced line driver will produce a differential voltage from 2 to 6 volts across its output terminals A balanced line driver can also have an input enable signal that connects the driver to its output terminals If the enable signal is OFF the driver is disconnected from the transmission line This disconnected or disabled condition is usually referred to as the tristate condition and represents a high impedance RS485 drivers must have this control capability RS422 drivers may have this control but it is not always required A balanced differential line receiver senses the voltage state of the transmission line across the two signal input lines If the differential input voltage is greater than 200 mV the receiver will provide a specific logic state on its output If the differential voltage input is less than 200 mV the receiver will provide the opposite logic state on its output
10. apability to add load resistors to terminate the communications lines RS422 communications requires that a transmitter supply a bias voltage to ensure a known zero state Also receiver inputs at each end of the network should be terminated to eliminate ringing The card supports biasing by default and supports termination by jumpers on the card If your application requires the transmitter to be un biased please contact the factory COM Port Compatibility Type 16550 UARTs are used as the Asynchronous Communication Element ACE These include 16 byte transmit receive buffers to protect against lost data in multitasking operating systems while maintaining 100 compatibility with the original IBM serial port The system assigns the address es A crystal oscillator is located on the card This oscillator permits precise selection of baud rates up to 115 200 or by changing a jumper up to 921 600 with the standard crystal oscillator The driver receiver used the SN75176B is capable of driving extremely long communication lines at high baud rates It can drive up to 60 mA on balanced lines and receive inputs as low as 200 mV differential signal superimposed on common mode noise of 12 V or 7 V In case of communication conflict the driver receivers feature thermal shutdown Communication Mode The card supports Full Duplex and Half Duplex communications with a 4 wire cable connection Half Duplex allows traffic to travel in both direction
11. ccupy eight consecutive register locations The interrupt register which indicates which port or ports caused the interrupt is located at base address 64 PCI architecture is Plug and Play This means that the BIOS or Operating System determines the resources assigned to PCI cards rather than you selecting those resources with switches or jumpers As a result you cannot set or change the card s base address You can only determine what the system has assigned To determine the base address that has been assigned run the PCIFind EXE or PCINT utility program provided This utility will display a list of all of the cards detected on the PCI bus the addresses assigned to each function on each of the cards and the respective IRQs if any allotted Alternatively some operating systems Plug and Play Windows can be gueried to determine which resources were assigned In these operating systems you can use either PCIFind or the Device Manager utility from the System Applet of the control panel The card is installed in the Data Acguisition class of the Device Manager list Selecting the card clicking Properties and then selecting the Resources Tab will display a list of the resources allocated to the card The PCI bus supports 64K of I O space so your card s addresses may be located anywhere in the 0000 to FFFF hex range Vendor ID code is 494F ASCII for I O Device ID code is 1068 13 Manual LPCI COM422 8 Chapter 5 Programming Samp
12. defective during the warranty period In no case is ACCES liable for consequential or special damage arriving from use or misuse of our product The customer is responsible for all charges caused by modifications or additions to ACCES equipment not approved in writing by ACCES or if in ACCES opinion the equipment has been subjected to abnormal use Abnormal use for purposes of this warranty is defined as any use to which the equipment is exposed other than that use specified or intended as evidenced by purchase or sales representation Other than the above no other warranty expressed or implied shall apply to any and all such equipment furnished or sold by ACCES 3 Manual LPCI COM422 8 Table of Contents Chapter 1 Introduction ss sssseee ennen renerne eee een 5 Specifications za ra aaea oiae aa a aans ere aoe deem eee eee eee 6 Figure 1 1 Block Diagram Only one serial channel shown sssssesesssesrissirssirssirssrrssrnssrrssrnssrnssrnns 7 Chapter 2 Installation seuuuseuuuusuuuuuus uu cece ae eeeeee cae eeeaaeeaaeeaaeeeceaeeeeaaesaaeesaeeeseaesseaaesgeeeseaeeesaeseeaeeenaes 8 Chapter 3 Option Gelecton cece uii eens cece ae eeeaeeseeeee cage eesaaeeeeeeesaeeesaaeeseaaeseneeescaeeseaeeseneeee 11 Figure 3 1 Simplified Termination Schematic ccccccceceeeceeeeeeeeeeeceeeeecaeeeeeaeeeeeeeseeeeesaeeesaeeeeeees 11 Figure 3 2 Option Selection Map 12 Chapter 4 Address Selection Musse 13 Chapter 5 Programming BEE
13. e UN STA Ute to run the install program 4 Follow the on screen prompts to install the software for this board WINDOWS 1 Place the CD into your CD ROM drive 2 The system should automatically run the install program If the install program does not run promptly click START RUN and type SANSAL click OK or press E 3 Follow the on screen prompts to install the software for this board LINUX 1 Please refer to linux htm on the CD ROM for information on installing under linux Note COM boards can be installed in virtually any operating system We do support installation in earlier versions of Windows and are very likely to support future versions as well Caution ESDA single static discharge can damage your card and cause premature failure Please follow all reasonable precautions to prevent a static discharge such as grounding yourself by touching any grounded surface prior to touching the card 8 Manual LPCI COM422 8 Hardware Installation IRN o 10 11 Make sure to set switches and jumpers from either the Option Selection section of this manual or from the suggestions of SETUP EXE Do not install card into the computer until the software has been fully installed Turn OFF computer power AND unplug AC power from the system Remove the computer cover Carefully install the card in an available 5V or 3 3V PCI expansion slot you may need to remove a backplate first Inspect for proper fit of the card and tigh
14. ed by ACCES which is found to be defective will be repaired or replaced subject to the following considerations Terms and Conditions If a unit is suspected of failure contact ACCES Customer Service department Be prepared to give the unit model number serial number and a description of the failure symptom s We may suggest some simple tests to confirm the failure We will assign a Return Material Authorization RMA number which must appear on the outer label of the return package All units components should be properly packed for handling and returned with freight prepaid to the ACCES designated Service Center and will be returned to the customer s user s site freight prepaid and invoiced Coverage First Three Years Returned unit part will be repaired and or replaced at ACCES option with no charge for labor or parts not excluded by warranty Warranty commences with equipment shipment Following Years Throughout your equipment s lifetime ACCES stands ready to provide on site or in plant service at reasonable rates similar to those of other manufacturers in the industry Equipment Not Manufactured by ACCES Equipment provided but not manufactured by ACCES is warranted and will be repaired according to the terms and conditions of the respective equipment manufacturer s warranty General Under this Warranty liability of ACCES is limited to replacing repairing or issuing credit at ACCES discretion for any products which are proved to be
15. et the UART for an 8 bit word no parity and one stop bit is outportb BASEADDR 3 0x03 Reception Reception can be handled in two ways polling and interrupt driven When polling reception is accomplished by constantly reading the Line Status Register at Base Address 5 Bit 0 of this register is set high whenever data are ready to be read from the chip A simple polling loop must continuously check this bit and read in data as it becomes available The following code fragment implements a polling loop and uses a value of 13 ASCII Carriage Return as an end of transmission marker do while inporto BASEADDR 5 amp 1 Wait until data ready data i inportbBASEADDR while data i l 13 Reads the line until null character rec d Interrupt driven communications should be used whenever possible and is reguired for high data rates Writing an interrupt driven receiver is not much more complex than writing a polled receiver but care should be taken when installing or removing your interrupt handler to avoid writing the wrong interrupt disabling the wrong interrupt or turning interrupts off for too long a period The handler would first read the Interrupt Identification Register at Base Address 2 If the interrupt is for Received Data Available the handler then reads the data If no interrupt is pending control exits the routine A sample handler written in C is as follows readback inportb BASEADDR 2 if
16. le Programs There are sample programs provided with the card in C Pascal QuickBASIC and several Windows languages DOS samples are located in the DOS directory and Windows samples are located in the WIN32 directory Windows Programming The card installs into Windows as COM ports Thus the Windows standard API functions can be used In particular gt CreateFile and CloseHandle for opening and closing a port gt SetupComm SetCommTimeouts GetCommState and SetCommState to set and change a port s settings gt ReadFile and WriteFile for accessing a port See the documentation for your chosen language for details Under DOS the process is very different The remainder of this chapter describes DOS programming 14 Manual LPCI COM422 8 Initialization Initializing the chip requires knowledge of the UART s register set The first step is to set the baud rate divisor You do this by first setting the DLAB Divisor Latch Access Bit high This bit is Bit 7 at Base Address 3 In C code the call would be outportb BASEADDR 3 0x80 You then load the divisor into Base Address 0 low byte and Base Address 1 high byte The following equation defines the relationship between baud rate and divisor desired baud rate UART clock frequency 32 divisor On the card the UART clock frequency is 1 8432 MHz On the next page is a table for the popular divisor frequencies
17. on resistors for the RX and RX lines are provided on the card and are placed in the circuit when you install the LD and LDGND jumpers See the Option Selection section of this manual RS485 Data Transmission The RS485 Standard allows a balanced transmission line to be shared in a party line mode As many as 32 driver receiver pairs can share a two wire party line network Many characteristics of the drivers and receivers are the same as in the RS422 Standard One difference is that the common mode voltage limit is extended and is 12V to 7V Since any driver can be disconnected or tristated from the line it must withstand this common mode voltage range while in the tristate condition The following illustration shows a typical multidrop or party line network Note that the transmission line is terminated on both ends of the line but not at drop points in the middle of the line 21 Manual LPCI COM422 8 TERMINATION RESISTORS AT BOTH ENDS ONLY y C N 1X FNAHI RX ENASLE LESTER IX ENASL RX FNAI Figure A 1 Typical RS485 Two Wire Multidrop Network RS485 Four Wire Multidrop Network An RS485 network can also be connected in a four wire mode In a four wire network it s necessary that one node be a master node and all others be slaves The network is connected so that the master communicates to all slaves and all slaves communicate only with the master This has advantages
18. readback amp 4 Readback will be set to 4 if data are available data i inportb BASEADDR outportb 0x20 0x20 Write EOI to 8259 Interrupt Controller return 16 Manual LPCI COM422 8 Transmission To transmit a string of data the transmitter must first check Bit 5 of the Line Status Register at Base Address 5 That bit is the transmitter holding register empty flag If it is high the transmitter has sent the data The process of checking the bit until it goes high followed by a write is repeated until no data remains The following C code fragment demonstrates this process while data i While there is data to send while inportob BASEADDR 5 amp 0x20 Wait until transmitter is empty outportb BASEADDR data i i 17 Manual LPCI COM422 8 Chapter 6 Connector Pin Assignments Input Output Connections The card uses a 50 pin SCSI Centronics type D connector to interface to a spider cable The spider cable has eight individual DB9M connectors provided with it To ensure that there is minimum susceptibility to EMI and minimum radiation it is important that the card mounting bracket be properly screwed into place and that there be a positive chassis ground Also proper EMI cabling techniques cable connect to chassis ground at the aperture shielded twisted pair wiring etc must be used for the input output wiring Pn nsa Eout Pd RSS 27 GND Ground GND Ground Fouts
19. s but only one way at a time Baud Rate Ranges The card has capability for two baud rate ranges and you can select which you wish to use on a port by port basis One range is up to 115 200 baud applications and the other is up to 921 600 baud Refer to Table 5 1 Baud Rate Divisor Values in chapter 5 of the manual 5 Manual LPCI COM422 8 Specifications Communications Interface Environmental I O Connection Serial Ports Character length Parity Stop Interval Serial Data Rates Address Receiver Input Sensitivity Common Mode Rejection 50 pin SCSI D Connector Eight cable terminated shielded male D sub 9 pin with standard IBM AT Style connectors compatible with RS422 specifications 5 6 7 or 8 bits Even odd or none 1 1 5 or 2 bits Up to 115 200 baud Asynchronous A faster range of rates up to 921 600 is achieved by jumper selection on the card Type 16550 buffered UART Continuously mappable within 0000 to FFFF hex range of PCI bus addresses 200 mV differential input 12V to 7V Transmitter Output Drive Capability 60 mA with thermal shutdown Operating Temperature Range 0 C to 60 C Storage temperature Range Humidity Power Required Size 50 C to 120 C 5 to 95 non condensing 5VDC at 200 mA typical Low Profile Version 6 6 long 167 64mm by 2 21 tall 56 17mm seated height 6 Manual LPCI COM422 8 COMPUTER PCI BUS OSCILLATOR PCI
20. tatus REG_DWORD 0xFC40 PortIndex REG DWORD 1 Serial Subkey PortAddress REG_DWORD 0xFC20 Interrupt REG_DWORD 5 DosDevices REG_SZ COM9 InterruptStatus REG_DWORD 0xFC40 PortIndex REG_DWORD 5 Serial Subkey PortAddress REG_DWORD 0xFC00 Interrupt REG_WORD 5 DosDevices REG_SZ COM5 InterruptStatus REG_DWORD 0xFC40 PortIndex REG DWORD 1 Serial Subkey PortAddress REG_DWORD 0xFC20 Interrupt REG_DWORD 5 DosDevices REG_SZ COM9 InterruptStatus REG_DWORD 0xFC40 Portlndex REG DWORD 5 Serial Subkey PortAddress REG DWORD OxFC08 Interrupt REG_DWORD 5 DosDevices REG_SZ COM6 InterruptStatus REG_DWORD 0xFC40 PortIndex REG_DWORD 2 Serial Subkey PortAddress REG_DWORD 0xFC28 Interrupt REG_DWORD 5 DosDevices REG_SZ COM10 InterruptStatus REG_DWORD 0xFC40 PortIndex REG DWORD 6 Serial Subkey PortAddress DWORD 0xFC10 Interrupt REG_DWORD 5 DosDevices REG_SZ COM7 InterruptStatus REG_DWORD 0xFC40 Portlndex REG DWORD 3 Serial Subkey PortAddress REG_DWORD 0xFC30 Interrupt REG_DWORD 5 DosDevices REG_SZ COM11 InterruptStatus REG_DWORD 0xFC40 PortIndex REG_DWORD 7 Serial Subkey PortAddress REG DWORD 0xFC18 Interrupt REG_DWORD 5 Dos Devices REG_SZ COM8 InterruptStatus REG_DWORD 0xFC40 PortIndex REG_DWORD4 Serial Subkey PortAddress REG_DWORD 0xFC38 Interrupt REG_DWORD 5
21. ten screws Make sure that the card mounting bracket is properly screwed into place and that there is a positive chassis ground Install an I O cable onto the card s bracket mounted connector Replace the computer cover and turn ON the computer Enter the CMOS setup program of your system and verify that the PCI plug and play option is set appropriately for your system Systems running Windows 95 98 2000 XP 2003 or any other PNP compliant operating system should set the CMOS option to OS Systems running under DOS Windows NT Windows 3 1 or any other non PNP compliant operating system should set the PNP CMOS option to BIOS or Motherboard Save the option and continue booting the system Most computers should auto detect the card depending on the operating system and automatically finish installing the drivers Run PClfind exe to complete installing the card into the registry for Windows only and to determine the assigned resources Run one of the provided sample programs that was copied to the newly created card directory from the CD to test and validate your installation The base address assigned by BIOS or the operating system can change each time new hardware is installed into or removed from the computer Please recheck PCIFind or Device Manager if the hardware configuration is changed Software you write can automatically determine the base address of the card using a variety of methods depending on the operating system In DOS the PC
22. ya ACCES I O PRODUCTS INC 10623 Roselle Street S n Diego CA 92121 858 550 9559 FAX 858 550 7322 ntactus accesio com www accesio com MODEL LPCI COM422 8 USER MANUAL FILE MLPCI COM422 8 D1m Notice The information in this document is provided for reference only ACCES does not assume any liability arising out of the application or use of the information or products described herein This document may contain or reference information and products protected by copyrights or patents and does not convey any license under the patent rights of ACCES nor the rights of others IBM PC PC XT and PC AT are registered trademarks of the International Business Machines Corporation Printed in USA Copyright 1995 2006 by ACCES I O Products Inc 10623 Roselle Street San Diego CA 92121 All rights reserved WARNING ALWAYS CONNECT AND DISCONNECT YOUR FIELD CABLING WITH THE COMPUTER POWER OFF ALWAYS TURN COMPUTER POWER OFF BEFORE INSTALLING A CARD CONNECTING AND DISCONNECTING CABLES OR INSTALLING CARDS INTO A SYSTEM WITH THE COMPUTER OR FIELD POWER ON MAY CAUSE DAMAGE TO THE I O CARD AND WILL VOID ALL WARRANTIES IMPLIED OR EXPRESSED 2 Manual LPCI COM422 8 Warranty Prior to shipment ACCES equipment is thoroughly inspected and tested to applicable specifications However should equipment failure occur ACCES assures its customers that prompt service and support will be available All equipment originally manufactur
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