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Summary of Contents for SeaLevel SeaLINK+4.SC
- Page 1 SeaLINK+4.SC User Manual | 2423...
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Page 2: Table Of Contents
Contents CONTENTS ................................2 INTRODUCTION ..............................3 BEFORE YOU GET STARTED ..........................4 INSTALLATION & CONFIGURATION ........................7 HARDWARE DESCRIPTION ..........................13 ELECTRICAL SPECIFICATIONS ......................... 14 TECHNICAL SPECIFICATIONS .......................... 16 APPENDIX A – TROUBLESHOOTING........................ 17 APPENDIX B – HOW TO GET ASSISTANCE ..................... 20 APPENDIX C –... -
Page 3: Introduction
Introduction Sealevel’s SeaLINK 2423 USB to serial interface adapter offers an easy way to connect up to four 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
Before You Get Started What’s Included The 2423 is shipped with the following items. If any of these items is missing or damaged, please contact Sealevel for replacement. • 2423 – USB to RS-232/422/485 Four Port Serial Interface Adapter •... - Page 5 Optional Items Depending upon your application, you are likely to find one or more of the following items useful for interfacing the 2423. All items can be purchased from our website (http://www.sealevel.com/) or by calling 864-843-4343. Cables DB9F to DB25M (RS-232) Extension Cable...
- 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...
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Page 7: Installation & Configuration
Software Installation Windows 98/ME/2000/XP/Vista™ Operating Systems 1. Begin by locating, selecting, and installing the correct software from the Sealevel software driver database. 2. Select the Part Number (2423) for your device from the listing. 3. Click the ‘Install Drivers’ button. - Page 8 Hardware Installation Do not connect the device to a USB port until the software has been successfully installed. To install the 2423, plug the device into an available USB port using the supplied USB cable. The following instructions were tested with Windows XP and may vary based on your version of Windows. Once the device has been connected, the Found New Hardware wizard will appear first for the root hub and then for each port that you are installing.
- Page 9 Verifying Installation To confirm that the ports have been successfully installed, you can look in Device Manager under ‘Ports (COM &LPT)’ and each of the ports you installed will be included on the list with their associated COM numbers. To access Device Manager, follow the steps below: 1.
- Page 10 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 Interface Biasing 1K-ohm pull up/pull down combination resistors bias the receiver inputs and are handled automatically for each mode. The pull-up (PU) and pull-down (PD) resistor settings are shown in the table below. Mode PU Setting PD Setting RS-232 Always Off Always Off RS-422 Always Off...
- Page 12 Echo The RS-485 ‘Echo’ is the result of connecting the receiver inputs to the transmitter outputs. Each time a character is transmitted; it is also received. This can be beneficial if the software can handle echoing (i.e., using received characters to throttle the transmitter), but it can also confuse the system if the software cannot support echoing.
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Page 13: Hardware Description
Hardware Description High-Retention USB Port The upstream port integrates a high-retention type B connector that prevents accidental disconnection of the USB cable. Status LEDs Status LEDs on the front of the 2423 indicate the following information: • MODE (Red or Green) – Indicates the electrical interface selected •... -
Page 14: Electrical Specifications
Electrical Specifications The 2423 connects to a single USB port and provides four RS-232/422/485 software configurable serial ports. The 2423 utilizes high speed USB/UARTs with 128-byte Tx FIFOs and 384-byte Rx FIFOs. The chips feature programmable baud rates and data rates to 921.6K bps. Connector Pinouts RS-232 (DB9 Male) Pin #... - Page 15 Electrical Specifications RS-422 & RS-485 Four-Wire (DB9 Male) Pin # Signal Pins 6-9 are ‘no connect’. RS-485 Two-Wire (DB9 Male) Pin # Signal DATA- DATA+ Pins 1, 2, 6-9 are ‘no connect’.
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Page 16: Technical Specifications
5.3” (13.5 cm) Height 1.7” (4.3 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. -
Page 17: Appendix A - Troubleshooting
Appendix A – Troubleshooting Sealevel Software is supplied with the Sealevel Systems adapter and may be used in the troubleshooting procedures. Using this software and following these simple steps can eliminate most common problems without the need to call Technical Support. - Page 18 • 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.’ • Select the ‘BERT’...
- Page 19 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.
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Page 20: Appendix B - How To Get Assistance
The Sealevel website is an excellent resource. Our homepage is located online at http://www.sealevel.com. The most current software updates and user manuals are available via our homepage by clicking on the 'Drivers' or 'Manuals' links located under ‘Technical Support.’... -
Page 21: Appendix C - Electrical Interface
Appendix C – Electrical Interface RS-232 Quite possibly the most widely used communication standard is RS-232. This implementation has been defined and revised several times and is often referred to as RS-232 or EIA/TIA-232. The IBM PC computer defined the RS-232 port on a 9 pin D sub connector and subsequently the EIA/TIA approved this implementation as the EIA/TIA-574 standard. -
Page 22: Appendix D - Asynchronous Communications
Appendix D – Asynchronous Communications Serial data communications implies that individual bits of a character are transmitted consecutively to a receiver that assembles the bits back into a character. Data rate, error checking, handshaking, and character framing (start/stop bits) are pre-defined and must correspond at both the transmitting and receiving ends. -
Page 23: Appendix E - Silk Screen - 2423
Appendix E – Silk Screen - 2423... -
Page 24: Appendix F - Compliance Notices
Appendix F – Compliance Notices Federal Communications Commission (FCC) Statement This equipment has been tested and found to comply with the limits for Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. -
Page 25: 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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