Impulse 2801 User Manual
TM
SeaLINK+8/USB
Sealevel Systems, Inc
P.O. Box 830
Liberty, SC 29657 USA
Part # 280X
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
FACTORY CONFIGURATION.............................................................4
ELECTRICAL INTERFACE SELECTION ..............................................4
MODE SELECT CONFIGURATION.....................................................5
INTERFACE BIASING CONFIGURATION............................................6
TECHNICAL NOTE...........................................................................6
TECHNICAL DESCRIPTION....................................................... 7
FEATURES....................................................................................... 7
CONNECTOR PIN ASSIGNMENTS .....................................................7
RS-422/485 (DB-9 Male)........................................................7
RS-232 (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
APPENDIX B - HOW TO GET ASSISTANCE............................10
PPENDIX C - ELECTRICAL INTERFACE .............................. 11
A
RS-232.........................................................................................11
RS-422.........................................................................................11
RS-485.........................................................................................12
APPENDIX D - ASYNCHRONOUS COMMUNICATIONS............13
APPENDIX E - COMPLIANCE NOTICES.................................. 14
FEDERAL COMMUNICATIONS COMMISSION STATEMENT ..............14
EMC DIRECTIVE STATEMENT ......................................................14
WARRANTY............................................................................15
Figures:
Figure 1- Dip Switches SW1 - SW4 RS-422 Default Mode....................5
Figure 2- Electrical Interface Mode Selection.........................................5
Figure 3 - Electrical Interface Termination and Biasing Selection .......6
Figure 4 - Asynchronous Communications Bit Diagram .....................13
© Sealevel Systems Inc.
SL9103 Revision 7/2006
Sealevel Systems, Incorporated. All rights reserved.
Introduction
Introduction
Overview
The Sealevel Systems SeaLINK+8 family of products equips the PC with 8
USB to Asynchronous serial ports. Three different model numbers are available
that offer a variety of port options. Model 2801 equips the PC with 8 additional
RS-232 ports that support a full RS-232 interface and data rates up to 460.8K
baud. Model 2802 equips the PC with 8 RS-422/485 ports that support data
rates up to 921.6K baud and provide selectable line termination and biasing. 2wire RS-485 line turnaround is supported via an onboard hardware circuit.
Model 2803 equips the PC with 8 user configurable RS-232/422/485 ports.
Each port is individually configurable and the interface is selected by
configuring two dipswitch positions. 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 IRQs. It does require a system that
supports USB both in terms of hardware and operating system.
What’s Included
The SeaLINK+8 is shipped with the following items. If any of these items is
missing or damaged, contact the supplier.
• SeaLINK+8 USB to Asynchronous Serial Converter
• USB Cable Part Number CA179 for Connecting to Upstream
Host/Hub
• Sealevel Software
Sealevel Systems SeaLINK+8 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 SeaLINK+8 can be connected to any upstream type “A” port, either at the
PC host or an upstream hub. The SeaLINK+8 is hot pluggable, meaning there is
no need to power down your computer prior to installation.
Connect the SeaLINK+8 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 eight 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 SeaLINK+8 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’s 12 thru 19. However, this assignment
will vary from system to system. At this point, the hardware is recognized and
ready to use.
Sealevel Systems SeaLINK+8 Page 3
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