Fastcom RS-422 Guida rapida per l'utente
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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
9011 E. 37TH STREET N.
WICHITA, KANSAS 67226-2006
(316) 636-1131
FAX (316) 636-1163
http://www.commtech-fastcom.com/
COPYRIGHT (C) 1999, 2002, 2003
All rights reserved, including 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 of International Business Machines Corporation.
Microsoft is a registered trademark of Microsoft Corporation.
WINDOWS is a trademark of Microsoft Corporation.
REVISION NOTES
REVISION 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 warranty period to lifetime
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
1
EUROPEAN UNION DECLARATION OF CONFORMITY
Information Technology Equipment
The Company COMMTECH, INC. declares under its own and full responsibility that the product
" Fastcom: 422/2-PCI - Revision 1.0 "
on which is attached this Certificate is compliant to the "89/336/EEC" Directive, amended by 92/31/EEC and
93/88/EEC.
[ ] The product identified above complies with the requirements of the above EU Directive by meeting the
following standards:
• EN 50081-1 (1992) EMC Generic Emission Standard - Part 1, Residential, Commercial and Light Industry
- EN 55022 (1995), CISPR 22 (1993) Limits and Methods of Measurement of Radio Disturbance
Characteristics of Information Technology Equipment, 30 MHz - 1 GHz, Class 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 801-3 (1984), Radiated Electromagnetic field Requirements, Level 3
- IEC 801-4 (1988), Electrical Fast Transient/Burst Requirements, Level 2
Products listed on this declaration are exempt from the requirements of the 73/23/EEC directive due to the input
voltage specification as stated in Article 1 of the directive.
The technical documentation required to demonstrate that this product meets the requirements of the EMC Directive
has been compiled by the signatory below and is available for inspection by the relevant enforcement authorities.
In WICHITA, KS on December 31st of 1995
9011 E. 37th Street North
Wichita, KS 67226-2006
(316) 636-1131
Fax (316) 636-1163
Mr. Glen R. Alvis
Chief Engineer
2
3
INTRODUCTION
The Fastcom: 422/2-PCI adapter is the fastest, most advanced two-channel RS-422/485 adapter in the industry.
Primarily designed for commercial, industrial, and OEM applications, the Fastcom: 422/2-PCI features two
discrete RS-422/485 channels, complete with RTS and CTS hand-shaking signals for each channel.
The advanced universal asynchronous receiver and transmitter (UART) chips used on the Fastcom: 422/2-PCI
are fully register compatible with standard 16C550 UARTs, but provide extraordinary 128 byte FIFOs for
receive and transmit buffering. This buffering is extremely valuable when working 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 plus a high-speed
mode capable of up to an amazing 1.5 Mbaud.
Software drivers for Windows 98/NT/2000/XP and Linux are supplied. Multiple Fastcom: 422/2-PCI adapters can
be installed in all operating systems.
The Fastcom RS-422-PCI family also includes the four-channel Fastcom: 422/4-PCI and the isolated ground
single-channel Fastcom: IG422/1-PCI. ISA bus versions are also available.
The following is the basic structure of the Fastcom: 422/2-PCI:
RS-422
RS-485
DB9
DRIVERS /
RECEIVERS
PCI
INTERFACE
CONTROLLER
CLOCK
CONTROL
REGISTER
422/485
CONTROL
REGISTER
PCI BU
S
CS
A0-A2
DATA
INTERRUPT
CLOCK
TX
RX
RTS
CTS
4
SPECIFICATIONS:
UART 16C850
BAUD RANGE Any rate up to 1.5 Mbaud
BUFFERING Transmit - 128 bytes
Receive - 128 bytes
INTERFACE RS-422 / RS-485
TX, RX, RTS, CTS
BUS PCI
POWER
REQUIREMENTS: +5 600mA (Typical)
ADDRESS
REQUIREMENTS: PCI Controller 128 bytes
UARTs 16bytes
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 Mbaud
128 byte FIFOs for improved throughput
User programmable baud rate
“Switchless” design
Hardware control for 485 driver
“Echo cancel” available in 485 mode
Comprehensive Hardware and Software Documentation
Made in Wichita, Kansas, U.S.A.
Questo manuale è adatto per i seguenti modelli
1
Indice
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