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SeaLINK+8.SC
User Manual | 2823
1
© Sealevel Systems, Inc.
2823 Manual | SL9195 9/2022

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Summary of Contents for SeaLevel SeaLINK+8.SC

  • Page 1 SeaLINK+8.SC User Manual | 2823 © Sealevel Systems, Inc. 2823 Manual | SL9195 9/2022...
  • Page 2: Table Of Contents

    APPENDIX C – ELECTRICAL INTERFACE ..................................23 APPENDIX D – ASYNCHRONOUS COMMUNICATIONS ............................. 24 APPENDIX E – SILK-SCREEN - 2823 .................................... 25 APPENDIX F – COMPLIANCE NOTICES..................................26 WARRANTY ............................................27 © Sealevel Systems, Inc. 2823 Manual | SL9195 9/2022...
  • Page 3: Introduction

    Introduction Overview Sealevel’s SeaLINK 2823 USB to serial interface adapter offers an easy way to connect up to eight serial devices to a single USB port. All configuration and electrical interface selections are handled through the driver and each port is individually software configurable for RS-232, RS-422, or RS-485 (full and half duplex).
  • Page 4: Before You Get Started

    Note The lowest level of importance used to provide background information, additional tips, or other non-critical facts that will not affect the use of the product. © Sealevel Systems, Inc. 2823 Manual | SL9195 9/2022...
  • Page 5: Optional Items

    Optional Items Depending upon your application, you are likely to find one or more of the following items useful with the 2823. All items can be purchased from our website (www.sealevel.com) or by calling our sales team at 864-843-4343. Cables...
  • Page 6 18 screw terminals to simplify field wiring of serial connections including RS-422 and RS-485 networks. The TB06 is designed to connect directly to Sealevel dual port DB9 serial cards or any cable with DB9M connectors. Adapters and Converters...
  • Page 7: Installation & Configuration

    Only users running Windows 7 or newer should utilize these instructions for accessing and installing the appropriate driver via Sealevel’s website. If you are utilizing an operating system prior to Windows 7, please contact Sealevel by calling 864.843.4343 or emailing support@sealevel.com...
  • Page 8: Hardware Installation

    The SeaLINK +8.SC is now ready for use. All applications and drivers have been fully tested to maintain the integrity of your operating system. Clicking on ‘Continue anyway’ will not harm your system in any way. © Sealevel Systems, Inc. 2823 Manual | SL9195 9/2022...
  • Page 9 4. When Device Manager launches, look under ‘Ports (COM & LPT)’ to verify that the serial ports have been correctly installed (screen shot of 2833 shown). Your system will assign the next available COM numbers which may vary for each computer used. © Sealevel Systems, Inc. 2823 Manual | SL9195 9/2022...
  • Page 10: Hardware Configuration

    The serial port properties menu will appear Click on the ‘Interface Settings’ tab The Sealevel SeaCOM driver adds the ‘Interface Settings’ tab. If this tab is missing, SeaCOM is not correctly installed. Select the appropriate electrical interface for your application and click on ‘OK’.
  • Page 11 Termination configuration is software selectable for both full- and half-duplex RS-485. By default, line termination is disabled, and this configuration can be set by placing a check next to ‘Enable Termination’ in the ‘RS-485 Advanced Configuration’ field, as shown in the image below. © Sealevel Systems, Inc. 2823 Manual | SL9195 9/2022...
  • Page 12 Echo configuration is software selectable for half-duplex RS-485. By default, ECHO is disabled, and this configuration can be set by placing a check next to ‘Enable Echo’ in the ‘RS-485 Advanced Configuration’ field, as pictured below. © Sealevel Systems, Inc. 2823 Manual | SL9195 9/2022...
  • Page 13: Hardware Description

    Red indicates RS-422 or RS-485 mode • DATA (Green) – Blinks to indicate data is being transmitted or received • POWER (Green) – Lights when the hub is properly powered through the USB connection © Sealevel Systems, Inc. 2823 Manual | SL9195 9/2022...
  • Page 14 USB cables. When used with SeaLATCH locking USB cables, the metal thumbscrew provides a secure metal-to-metal connection and prevents accidental cable disconnection. Sealevel incorporates SeaLATCH locking USB ports on many USB I/O devices. Accidental cable disconnection is the most common point of failure with USB industrial I/O devices and SeaLATCH cables and connectors prevents that while being fully compatible with standard USB cables.
  • Page 15 Sealevel products with a SeaLATCH type B port and legacy USB type A ports. The CA356 is included with Sealevel devices with a SeaLATCH type B port. Item# CA332 The CA332 is a 72” cable with both SeaLATCH type A and B connectors.
  • Page 16: Electrical Specifications

    The CA355 is a 72” cable with a standard USB type B and a SeaLATCH type A connector. This cable provides a secure connection between legacy USB devices and Sealevel products with a SeaLATCH type A port, such as the isolated USB hub (Item# 270U). Electrical Specifications The 2823 connects to a single USB port and provides eight RS-232/422/485 software configurable serial ports.
  • Page 17 Pin # Signal Pins 6 – 9 are ‘no connect’. RS-485 Two-Wire (DB9 Male) Pin # Signal DATA- DATA+ Pins 1, 2, 6 – are ‘no connect’. © Sealevel Systems, Inc. 2823 Manual | SL9195 9/2022...
  • Page 18: Technical Specifications

    2.4 inches (6.1 cm) 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. © Sealevel Systems, Inc.
  • Page 19: Appendix A - Troubleshooting

    Installation and Configuration section of this manual). 4. Once you have confirmed that the COM ports are listed in Device Manager, you can use the Sealevel WinSSD utility, and a loopback plug to test communications. Detailed help is included in the WinSSD utility.
  • Page 20 Click the ‘Settings’ button to open the COM Properties menu. Change your parameters to 9600 bits per second, 8 data bits, no parity, 1 stop bit, and no flow control, as pictured below. • Click ‘Apply’ and ‘Ok’. © Sealevel Systems, Inc. 2823 Manual | SL9195 9/2022...
  • Page 21 You can continue testing this port with different configurations or proceed with testing other ports, if necessary. If these steps do not solve your problem, please call Sealevel Systems’ Technical Support, (864) 843-4343. Our technical support is free and available from 8:00 AM to 5:00 PM Eastern Time Monday through Friday.
  • Page 22: 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 23: Appendix C - Electrical Interface

    (Tx+ to Rx+ and Tx- to Rx-). Four wire mode allows full duplex data transfers. RS-485 does not define a connector pin-out or a set of modem control signals. RS-485 does not define a physical connector. © Sealevel Systems, Inc. 2823 Manual | SL9195 9/2022...
  • Page 24: Appendix D - 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. 2823 Manual | SL9195 9/2022...
  • Page 25: Appendix E - Silk-Screen - 2823

    Appendix E – Silk-Screen - 2823 © Sealevel Systems, Inc. 2823 Manual | SL9195 9/2022...
  • Page 26: Appendix F - 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. 2823 Manual | SL9195 9/2022...
  • Page 27: 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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