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Fastcom RS-422 Hardware Reference Manual Download Page 5

 

 

CONTENTS 
 
 

 

“CE” CERTIFICATE

.............................................................................................................. 1 

 
 INTRODUCTION 
 

 

Description / Block Diagram

............................................................................................ 3 

 

 

Specifications / Features

................................................................................................. 4 

 

 

Board Layout

................................................................................................................... 5 

 
 INSTALLATION 
 

 

Installing the Hardware

 / 

Software

................................................................................... 6 

 

 

Testing the Installation

..................................................................................................... 6 

 
 

FASTCOM SERIAL SETTINGS

............................................................................................ 8 

 
 

DB9 PIN DESCRIPTION

.................................................................................................... 10 

 
 

RS-422/485

......................................................................................................................... 11 

 

 

Termination Resistance

................................................................................................. 12 

 
 

TECHNICAL SUPPORT

..................................................................................................... 13 

 
 APPENDIX 

A 

 

 

16C850 UART Technical Data

...................................................................................... 14 

 

Summary of Contents for RS-422

Page 1: ...F A ASTCOM DAPTERS FASTCOM 422 2 PCI 1 5Mbaud Dual Channel RS 422 RS 485 Interface for PCI Bus Hardware Reference Manual Manufactured by 9011 E 37th St N Wichita KS 67226 2006...

Page 2: ......

Page 3: ...ncluding those to reproduce this document or parts thereof in any form without permission in writing from Commtech Inc FASTCOM and SMART14 are trademarks of Commtech Inc IBM is a registered trademark...

Page 4: ...ON PAGE NUMBER CHANGES MADE 2 1 14 Changed warranty to 2 years 2 2 6 Added link to installation manual 2 3 12 Updated contact information 2 4 8 9 Updated Fastcom Serial Settings 2 5 13 Changed warrant...

Page 5: ...Specifications Features 4 Board Layout 5 INSTALLATION Installing the Hardware Software 6 Testing the Installation 6 FASTCOM SERIAL SETTINGS 8 DB9 PIN DESCRIPTION 10 RS 422 485 11 Termination Resistanc...

Page 6: ......

Page 7: ...ss B Limits EN 50082 1 1992 EMC Generic Immunity Standard Part 1 Residential Commercial and Light Industry IEC 801 2 1984 Method of Evaluating Susceptibility to Electrostatic Discharge Level 4 IEC 801...

Page 8: ...2...

Page 9: ...with RS 422 485 communications within high overhead operating systems such as Windows NT and Windows 98 The two advanced UARTs on the Fastcom 422 2 PCI are each capable of all standard baud rates plu...

Page 10: ...ytes UARTs 16 bytes Control Registers 4 bytes INTERRUPT REQUIREMENTS 1 per board FEATURES New high performance 16C850 UARTS Standard on the Fastcom 422 2 PCI no extra charge All baud rates up to 1 5 M...

Page 11: ...CONTROLLER 16C850 UARTs CHANNEL 1 DB9 CONNECTOR CHANNEL 2 DB9 CONNECTOR TRANSMIT RECEIVE LEDs CHANNEL 1 CHANNEL 2 PACKING LIST FASTCOM 422 2 PCI CARD FASTCOM CD If an omission has been made please cal...

Page 12: ...ards section to return to this manual TESTING THE INSTALLATION To fully test the installation of your Fastcom 422 2 PCI you will need to build a loop back plug Materials needed are a DB9 male plug sol...

Page 13: ...an IRQ to the Fastcom card Try disabling IRQ steering or varying the options in Control Panel System Device Manager System Devices PCI Bus 4 Multiple COMx assignments In Windows NT the driver setup as...

Page 14: ...le When checked the receive is disabled during transmit Enable Source When checked the 485 driver control is RTS This is compatible with older boards and software which are not automatically controlle...

Page 15: ...dard PC baud rate to the left of the box you ended on You will select this standard baud rate to set up your com ports and the baud rate you require will be substituted If you receive an error message...

Page 16: ...the board The following is a pin description of the DB9 connectors PIN NO SIGNAL NAME DIRECTION 1 SIGNAL GROUND GND GROUND 2 READY TO SEND RTS OUTPUT 3 READY TO SEND RTS OUTPUT 4 TRANSMIT DATA TX OUT...

Page 17: ...differential signal consisting of TX and TX the receive signal RX in RS 232 consists of RX and RX Another draw back of RS 232 is that more than two devices cannot share a single cable This is also tru...

Page 18: ...422 2 PCI in a multi drop network the termination resistor should be removed from all units except the first and last see the RS 485 illustration below Call for technical support if you need to modify...

Page 19: ...ch positions your cables and your program We recommend that you build the loop back plug that is described in the Programming section of this manual With that plug you can quickly isolate the problem...

Page 20: ...14 APPENDIX A 16C850 UART DATA...

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