Related Manuals for SeaLevel SEALINK+485I
Summary of Contents for SeaLevel SEALINK+485I
- Page 1 SEALINK+485I User Manual | 2104 © Sealevel Systems, Inc. 2104 Manual | SL9092 9/2021...
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Page 2: Table Of Contents
APPENDIX D – GROUND LOOP PHENOMENON ....................15 APPENDIX E – ASYNCHRONOUS COMMUNICATIONS .................. 16 APPENDIX F – SILK-SCREEN ..........................17 APPENDIX G – COMPLIANCE NOTICES ......................18 WARRANTY ................................ 19 © Sealevel Systems, Inc. 2104 Manual | SL9092 9/2021... -
Page 3: Introduction
Introduction Overview The Sealevel Systems SeaLINK+485I equips the PC with 1 isolated USB to RS-422/485 Asynchronous serial port providing a versatile interface for common RS-422/485 needs. The SeaLINK+485I connects through the PC’s external USB port, so it does not require opening the computer case. Resources such as IRQ’s and I/O addresses are also not utilized. -
Page 4: Before You Get Started
Before You Get Started What’s Included The SeaLINK+485I is shipped with the following items. If any of these items is missing or damaged, contact the supplier. • SeaLINK+485I Isolated USB to RS-422/485 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 2104-product webpage: SeaLINK+485I Product Other Operating Systems Refer to the appropriate section of the Serial Utilities Software. -
Page 6: Hardware Installation
The SeaLINK+485I can be connected to any Upstream Type “A” port either at the PC host or an Upstream Hub. The SeaLINK+485I 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.
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Page 8: Configuration
Configuration Electrical Interface Selection The port on the SeaLINK+485I has the ability to be used in both half and full duplex RS-422/485 applications. This is selectable through DIP-switch SW1. The chart below describes each of the switch position’s function. Please refer to the following page for switch setting examples. Switch SW1, in the “ON” position, either enables, adds, or connects, based on the function of the switch position listed below. - Page 9 Figure 2 is the first RS-485 picture: 1 ON, 2 off, 3 ON, 4 ON, 5 ON, 6 ON, 7 ON, 8 off. Figure 3 is the second RS-485 picture: 1 ON, 2 ON, 3 ON, 4 ON, 5 ON, 6 ON, 7 ON, 8 off. © Sealevel Systems, Inc. 2104 Manual | SL9092 9/2021...
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Page 10: Technical Description
Technical Description The SeaLINK+485I: 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-422/485 transceiver supports data rates from 300 baud up to 921.6K baud. -
Page 11: 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 12: 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 13: 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 14: 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. 2104 Manual | SL9092 9/2021... -
Page 15: Appendix D - Ground Loop Phenomenon
Cabling Recommendations When connecting the SeaLINK+485I in an RS-485 network, care should be taken that both ends of the network are not isolated from ground (see Figure 4). This “floating” ground condition could cause 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 16: 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. 2104 Manual | SL9092 9/2021... -
Page 17: Appendix F - Silk-Screen
Appendix F – Silk-Screen 2.09 in 1.39 in © Sealevel Systems, Inc. 2104 Manual | SL9092 9/2021... -
Page 18: 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. 2104 Manual | SL9092 9/2021... -
Page 19: 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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