Impulse 2202 User Manual
SeaPORT+2/485
TM
Sealevel Systems, Inc
P.O. Box 830
Liberty, SC 29657 USA
Part #
Phone: (864) 843-4343
FAX: (864) 843-3067
www.sealevel.com
Contents
INTRODUCTION........................................................................ 1
OVERVIEW......................................................................................1
WHAT’S INCLUDED ........................................................................1
INSTALLATION......................................................................... 2
OPERATING SYSTEM INSTALLATION...............................................2
SYSTEM INSTALLATION ..................................................................2
ONFIGURATION ..................................................................... 4
C
ORIGINAL CONFIGURATION ............................................................4
ELECTRICAL INTERFACE SELECTION ..............................................4
SWITCH EXAMPLES.........................................................................6
TECHNICAL DESCRIPTION....................................................... 7
FEATURES....................................................................................... 7
CONNECTOR PIN ASSIGNMENTS .....................................................7
RS-422/485 (DB 9 Male)........................................................7
SPECIFICATIONS ...................................................................... 8
ENVIRONMENTAL SPECIFICATIONS.................................................8
MANUFACTURING...........................................................................8
POWER CONSUMPTION ...................................................................8
MEAN TIME BETWEEN FAILURES (MTBF).....................................8
PHYSICAL DIMENSIONS ..................................................................8
APPENDIX A - TROUBLESHOOTING.........................................9
PPENDIX B - HOW TO GET ASSISTANCE ............................10
A
APPENDIX C - ELECTRICAL INTERFACE...............................11
RS-422.........................................................................................11
RS-485.........................................................................................11
APPENDIX D - ASYNCHRONOUS COMMUNICATIONS ............12
APPENDIX E - COMPLIANCE NOTICES.................................. 13
FEDERAL COMMUNICATIONS COMMISSION STATEMENT ..............13
CANADIAN RADIO INTERFERENCE REGULATIONS ........................13
EMC DIRECTIVE STATEMENT ......................................................14
ARRANTY............................................................................15
W
Figures:
Figure 1: Switche SW2 ..............................................................................5
Figure 2: RS422/485 Interface Configuration.........................................6
Figure 3: Asynchronous Bit Diagram ....................................................12
© Sealevel Systems, Inc.
SL9097 Revision 7/2006
Sealevel Systems, Incorporated. All rights reserved.
Introduction
Introduction
Overview
The Sealevel Systems equips the PC with 2 USB to RS-422/485 Asynchronous
serial ports providing a versatile interface for common serial needs. The
advantage of this product over more traditional approaches is that it does not
require opening the computer case, nor does it require resources such as I/O
ports or IRQ’s. It does require a system that supports USB both in terms of
hardware and operating system.
What’s Included
The SeaPORT+2/485 is sh ipped with the follo wing items. If any of these items
is missing or damaged, contact the supplier.
• SeaPORT+2/485 USB to RS-422/485 Serial I/O Adapter
• USB Cable Part Number CA179 for Connecting to Upstream
Host/Hub
• Sealevel Software
Sealevel Systems SeaPORT+2/485 Page 1
Installation
Installation
Operating System Installation
Choose Install Software at the beginning of the CD and install SeaCOM.
System Installation
The screen captures below are taken from a Windows 98 installation. Your
particular operating system may differ slightly from what is shown based on
your version of Windows.
The SeaPORT+2/485 can be connected to any upstream type “A” port either at
the PC host or an upstream hub. The SeaPORT+2/485 is hot pluggable,
meaning there is no need to power down your computer prior to installation.
Connect the SeaPORT+2/485 to an upstream host or hub.
The New Hardware Found wizard will now proceed to locate the appropriate
drivers. These drivers were installed during the SeaCOM software setup
procedure. Once the drivers are found a new window will pop up indicating the
installation of each of the four new ports.
If you view the system’s Device Manager, you should have new “COM” ports
in the Ports (COM & LPT) Device Class. This is shown on the following page.
Sealevel Systems SeaPORT+2/485 Page 2
Installation
You can access your new COM: ports by using the assigned COM: identifiers as
shown above. In this case, it is COM 3 and 4. However, this assignment will
vary from system to system. At this point, the hardware is recognized and ready
to use.
Sealevel Systems SeaPORT+2/485 Page 3
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