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CommTech Fastcom 232/4-LPCI-335 Reference Manual

Four channel rs-232 asynchronous interface for low-profile universal pci bus
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Summary of Contents for CommTech Fastcom 232/4-LPCI-335

  • Page 2 All rights reserved, including those to reproduce this document or parts thereof in any form without permission in writing from Commtech, Inc. FASTCOM and the “Alpha Lemur” are registered trademarks of Commtech, Inc. Microsoft is a registered trademark of Microsoft Corporation.
  • Page 3 REVISION NOTES REVISION PAGE NUMBER CHANGES MADE Document created Added information about digital I/O ports Added to fastcom serial settings Changed warranty period to limited lifetime Updated Limitation of Liability...

  • Page 4: Table Of Contents

    TESTING THE INSTALLATION ....................6 PCI P ...............6 ESTING THE ASTCOM SYNC ORT IN INDOWS FASTCOM ASYNCPCI-335 SERIAL SETTINGS ..............7 FASTCOM: 232/4-LPCI-335 ADAPTER CABLE ..............9 DB44 P ......................9 ESCRIPTION DB25 P ......................10 ESCRIPTION PROGRAMMING ........................11 MAXIMUM DATA RATE ......................12 TECHNICAL SUPPORT ......................13 APPENDIX A ...........................14...

  • Page 5: European Union Declaration Of Conformity

    Information Technology Equipment The Company COMMTECH, INC. declares under its own and full responsibility that the product " Fastcom 232/4-LPCI-335 - Revision 1.1 " on which is attached this Certificate is compliant to the "89/336/EEC" Directive, amended by 92/31/EEC and 93/88/EEC.

  • Page 6: Introduction

    For voltage and current tolerance information, please refer to the TTL information for any standard 74LS00. With the supplied software driver, the ports on the Fastcom: 232/4-LPCI-335 will be seen as standard COM ports and can utilize all the same functions as a standard serial device.

  • Page 7: Specifications

    Four independent channels Software programmable baud rates Switchless design for durability and reliability Status LED’s for system development / debugging Durable cables with RFI shielding Hardware documentation, software, and example programs provided on the Fastcom CD Made in Wichita, Kansas USA...

  • Page 8: Board Layout

    Rx = Yellow Universal PCI. Tx = Red DB44 Connector Universal PCI Bus (5V & 3.3V), PCI-X Compatible PACKING LIST Fastcom: 232/4-LPCI-335 Card 232/4 Cable Assembly Fastcom CD If an omission has been made, please call technical support for a replacement.

  • Page 9: Installation

    4. Select an open PCI slot in your PC. 5. After removing the blank bracket from your PC, install the Fastcom: 232/4-LPCI-335 in the PC by pressing it firmly into the slot. Install the bracket screw to hold it firmly in place.

  • Page 10: Testing The Installation

    TESTING THE INSTALLATION To fully test the installation of your Fastcom: 232/4-LPCI-335, you will need to build a "loop back plug". Materials needed are a DB25 female receptacle, solder cup style, and two short pieces of 20 or 24 AWG stranded wire.

  • Page 11: Fastcom Asyncpci-335 Serial Settings

    Communications Port” devices, and then clicking on the “Fastcom AsyncPCI-335 Serial Settings” tab. Each port on the Fastcom board has all of the settings available to it. However there is one option that will affect all other ports on that particular Fastcom board: Clock Generator Frequency, all other settings are will affect only the selected port.
  • Page 12 Tx Write Size is the number of bytes that get written to the Tx FIFO when the low water mark is reached. Raising or lowering this value can help to reduce the number of interrupts generated by the Fastcom port during transmits.

  • Page 13: Fastcom: 232/4-Lpci-335 Adapter Cable

    FASTCOM: 232/4-LPCI-335 ADAPTER CABLE We provide access to the four channels of the FASTCOM: 232/4-LPCI-335 through a shielded DB44 connector and an adapter cable (supplied with the board). The adapter cable consists of a DB44 male plug fanning out to four standard DB25 male plugs.

  • Page 14: Db25 Pin Description

    DB25 Pin Description The FASTCOM: 232/4-LPCI-335 features four RS-232 channels, which are accessed through four DB25 connectors on the cable assembly. The following is a pin description of the DB25 connectors: PIN NO. SIGNAL NAME DIRECTION No Connect TRANSMIT DATA (TxD)

  • Page 15: Programming

    Refer to the AsyncPCI335\examples directory on the Fastcom CD or in the downloaded zip file for some example C programs that demonstrate how to use the Fastcom specific serial settings as well as give a general sense of how to use the Win32 API.

  • Page 16: Maximum Data Rate

    83 ft (CL not to exceed 2500 Pico farads per EIA-232). These equations are an estimate of the maximum capabilities in the user’s environments; different cable capacitance will yield different results. These equations are only valid when using a Fastcom: 232/4-LPCI-335 adapter, they cannot be utilized when dealing with other Fastcom boards.

  • Page 17: Technical Support

    Commtech’s entire FASTCOM product line is covered by a limited lifetime warranty against defects in workmanship. This warranty is available only to the original purchaser and only covers defects in our workmanship. Any FASTCOM board that is returned to Commtech will, at the option of Commtech, be repaired or replaced at no charge -- except for circumstances excluded by this warranty.

  • Page 18: 17D154 Uart Data Sheet

    APPENDIX A 17D154 UART Data Sheet View from CD Download from web...

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