Kontron PCI-COM422 User Manual Download Page 33

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PCI-COM422 User’s Guide

page 33

Appendix B: Troubleshooting

General Guidelines

WARNING

The following procedures may involve working with high voltage,

which could injure you. Avoid shorting the circuits as this can

damage the computer.

CAUTION

The following procedures involve working with a device that is

sensitive to static electricity. Use proper precautions to protect

against electrostatic discharge (ESD). Only qualified personnel

should attempt these procedures.

Summary of Contents for PCI-COM422

Page 1: ...PCI COM422 User s Guide May 2006...

Page 2: ...protected by copyrights or patents and does not convey any license under the patent rights of Kontron nor the rights of others Kontron is a registered trademark of Kontron All trademarks registered t...

Page 3: ...on 15 RS422 Balanced Mode Operation 15 COM Port Compatibility 15 Communication Mode 15 Baud Rate Ranges 16 Specifications 17 Communications Interface 17 Environmental 17 Block Diagram 18 Chapter 2 Ins...

Page 4: ...nections 31 Data Cable Wiring 31 Connection Pin Assignments 32 Appendix B Troubleshooting 33 General Guidelines 33 Troubleshooting Procedures 34 Common Problems 35 List of Figures Figure 1 Simplified...

Page 5: ...erating a computer Only qualified experienced authorized electronics service personnel should access the interior of a computer The power supplies produce high voltages and energy hazards which can ca...

Page 6: ...ppropriate To help avoid possible damage to system boards wait five seconds after turning off the computer before removing a component removing a system board or disconnecting a peripheral device from...

Page 7: ...ent s antistatic packing material until you are ready to install the component in a computer Just before unwrapping the antistatic packaging be sure you are at an ESD workstation or grounded This will...

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Page 9: ...s and information on control registers and addressing Appendix A Connector Pin Assignments provides information on connectors and signals Appendix B Troubleshooting provides general troubleshooting gu...

Page 10: ...te A note is used to make helpful information stand out Important An important note indicates information that is important for you to know CAUTION A CAUTION indicates potential damage to hardware and...

Page 11: ...terial for possible future shipment 2 Remove all items from the box If any items listed on the purchase order are missing notify Kontron customer service immediately 3 Inspect the product for damage I...

Page 12: ...ot in an as new and resalable condition are not eligible for a credit return and will be returned to the customer Limited Warranty Effective April 1 1998 all products carry a 2 year limited warranty W...

Page 13: ...y repairs and building replacement products If Kontron repairs or replaces a product its warranty term is not extended Kontron will normally return your replacement or repaired items via ground Overni...

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Page 15: ...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 a 16 byte transmit receive buffer to...

Page 16: ...LK X1 position When the jumper is in the X1 position we can utilize the industry standard baud rate selection methodology When in the X4 position we must compensate for the new input frequency by lett...

Page 17: ...s up to 921 600 is achieved by jumper selection on the card Type 16550 buffered UART Address Continuously mappable within 0000 to FFFF hex range of PCI bus addresses Receiver Input Sensitivity 200 mV...

Page 18: ...page 18 PCI COM422 User s Guide Block Diagram DB50M Only one serial channel shown...

Page 19: ...wer turn off the power supply switch and disconnect the power cord from its source before removing the chassis cover Simply turning the system power off at the system power on off switch does not remo...

Page 20: ...CD should automatically run the install program If the install program does not run promptly click START RUN and type G LQVWDOO click OK or press x 3 Follow the on screen prompts to install the softw...

Page 21: ...e 1 Simplified Termination Schematic In RS422 operations where there are multiple terminals only the RS422 ports at the receiver end of the network should have terminating impedance as described above...

Page 22: ...jumpers labeled CLK X1 and CLK X4 provide means to select baud rates in either of two ranges When in the X1 position the baud rate range is up to 115 200 baud When in the CLK X4 position the baud rate...

Page 23: ...PCI COM422 User s Guide page 23 Figure 3 Low Profile Option Selection Map...

Page 24: ...l 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 Windows 95 98 2000 XP c...

Page 25: ...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 9 Most computers...

Page 26: ...0xFC00 Interrupt REG_DWORD 5 DosDevices REG_SZ COM3 InterruptStatus REG_DWORD 0xFC40 PortIndex REG_DWORD 1 Indexed REG_DWORD 0 Serial3 subkey PortAddress REG_DWORD 0xFC08 Interrupt REG_DWORD 5 DosDev...

Page 27: ...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 DOS Programming Initialization Initiali...

Page 28: ...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 leng...

Page 29: ...lled 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 pe...

Page 30: ...page 30 PCI COM422 User s Guide while data i While there is data to send while inportb BASEADDR 5 0x20 Wait until transmitter is empty outportb BASEADDR data i i...

Page 31: ...hat 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 E...

Page 32: ...32 GND Ground 8 Bout 33 Fout 9 Bout 34 Fout 10 Ground through 100 Ohm R 35 Ground through 100 Ohm R 11 Bin 36 Fin 12 Bout 37 Fout 13 GND Ground 38 GND Ground 14 Cout 39 Gout 15 Cout 40 Gout 16 Ground...

Page 33: ...with high voltage which could injure you Avoid shorting the circuits as this can damage the computer CAUTION The following procedures involve working with a device that is sensitive to static electric...

Page 34: ...cables to fans and disk drive cables Occasionally Flash BIOS can be corrupted by hardware or software Check the Kontron Web site for the latest version of BIOS and follow the steps for reflashing Whe...

Page 35: ...ystem is not booting just beeping Memory is not seated correctly or is faulty 1 beep 2 beeps or 3 beeps Re seat the memory first If that does not fix the problem replace the memory with known good chi...

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