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SEALINK+232I
User Manual | 2103
1
© Sealevel Systems, Inc.
2103 Manual | SL9091 9/2021

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Summary of Contents for SeaLevel SEALINK+232I

  • Page 1 SEALINK+232I User Manual | 2103 © Sealevel Systems, Inc. 2103 Manual | SL9091 9/2021...
  • Page 2: Table Of Contents

    APPENDIX D – GROUND LOOP PHENOMENON ....................13 APPENDIX E – ASYNCHRONOUS COMMUNICATIONS .................. 14 APPENDIX F – SILK-SCREEN ..........................15 APPENDIX G – COMPLIANCE NOTICES ......................16 WARRANTY ................................ 17 ....................................© Sealevel Systems, Inc. 2103 Manual | SL9091 9/2021...
  • Page 3: Introduction

    Introduction The Sealevel Systems SeaLINK+232I equips the PC with 1 isolated USB to RS-232 Asynchronous serial port providing a versatile interface for common RS-232 needs (i.e., modem, mouse, and plotter). The SeaLINK+232I connects through the PC’s external USB port, so it does not require opening the computer case.
  • Page 4: Before You Get Started

    Before You Get Started What’s Included The SeaLINK+232I is shipped with the following items. If any of these items is missing or damaged, contact the supplier. • SeaLINK+232I Isolated USB to RS-232 Serial I/O Adapter • USB Cable Part Number CA179 for Connecting to Upstream Host/Hub •...
  • Page 5: Installation

    Installation Operating System Installation For Windows Users Begin by locating, selecting, and installing the correct software from the Sealevel software driver database. SeaCOM software can also be downloaded from the 2103-product webpage: SeaLINK+232I Product Other Operating Systems Refer to the appropriate section of the Serial Utilities Software.
  • Page 6: Hardware Installation

    Windows. The SeaLINK+232I can be connected to any Upstream Type “A” port either at the PC host or an Upstream Hub. The SeaLINK+232I is hot-pluggable, meaning there is no need to power down your computer prior to installation.
  • Page 7 You can access your new COM: port by using the assigned COM: identifier shown above. In this case, it is COM5: but this assignment will vary from system to system. At this point, the hardware is recognized. To verify operation, use Sealevel Systems supplied WinSSD diagnostic utility. WinSSD can be found in the Start Menu, under the SeaCOM group.
  • Page 8: Technical Description

    Technical Description The SeaLINK+232I utilizes a USB UART. This chip features programmable baud rate, data format, 128-byte Dual Port RX Buffer, and 256-byte Dual Port TX Buffer. The RS-232 transceiver supports data rates up to 460.8K baud. Refer to Appendix C for cable length limitations.
  • Page 9: Specifications

    10 to 90% R.H. Non-Condensing Manufacturing All Sealevel Systems Printed Circuit boards are built to UL 94V0 rating and are 100% electrically tested. These printed circuit boards are solder mask over bare copper or solder mask over tin nickel. Power Consumption...
  • Page 10: Appendix A - Troubleshooting

    Appendix A – Troubleshooting Serial Utility test software is supplied with the Sealevel Systems adapter and will be used in the troubleshooting procedures. Using this software and following these simple steps, most common problems can be eliminated without the need to call Technical Support.
  • Page 11: Appendix B - How To Get Assistance

    If possible, please have the adapter installed in a computer ready to run diagnostics. Sealevel Systems provides an FAQ section on its web site. Please refer to this to answer many common questions. This section can be found at http://www.sealevel.com/faq.asp.
  • Page 12: Appendix C - Electrical Interface

    (ground) to determine binary logic states. The RS-232 and the EIA/TIA-574 specification define two types of interface circuits, Data Terminal Equipment (DTE) and Data Circuit-Terminating Equipment (DCE). The SeaLINK+232I is a DTE device.
  • Page 13: Appendix D - Ground Loop Phenomenon

    Cabling Recommendations When connecting the SeaLINK+232I, care should be taken that both ends of the connection are not isolated from ground (see Figure 1). This “floating” ground condition could cause the capacitive or inductive coupling of voltages that will cause a break down in the DC to DC converter circuit or in the opto-isolator circuit.
  • Page 14: Appendix E - Asynchronous Communications

    The communication parameters are baud rate, parity, number of data bits per character, and stop bits (i.e., 9600, N, 8, 1). © Sealevel Systems, Inc. 2103 Manual | SL9091 9/2021...
  • Page 15: Appendix F - Silk-Screen

    Appendix F – Silk-Screen 2.09 in 1.39 in © Sealevel Systems, Inc. 2103 Manual | SL9091 9/2021...
  • Page 16: Appendix G - Compliance Notices

    Always use cabling provided with this product if possible. If no cable is provided or if an alternate cable is required, use high quality shielded cabling to maintain compliance with FCC/EMC directives. © Sealevel Systems, Inc. 2103 Manual | SL9091 9/2021...
  • Page 17: Warranty

    Sealevel's commitment to providing the best I/O solutions is reflected in the Lifetime Warranty that is standard on all Sealevel manufactured I/O products. We are able to offer this warranty due to our control of manufacturing quality and the historically high reliability of our products in the field. Sealevel products are designed and manufactured at its Liberty, South Carolina facility, allowing direct control over product development, production, burn-in and testing.

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