Related Manuals for SeaLevel SIO-485
Summary of Contents for SeaLevel SIO-485
- Page 1 SIO-485 ™ User Manual | 3054 © Sealevel Systems, Inc. 3054 Manual | SL9080 11/2021...
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Page 2: Table Of Contents
APPENDIX C – ELECTRICAL INTERFACES ..................................14 APPENDIX D – ASYNCHRONOUS COMMUNICATIONS ............................. 15 APPENDIX E – SILK SCREEN ......................................16 APPENDIX F – SCHEMATIC......................................17 APPENDIX G – COMPLIANCE NOTICES ..................................18 WARRANTY ............................................19 © Sealevel Systems, Inc. 3054 Manual | SL9080 11/2021... -
Page 3: Introduction
Introduction Overview The Sealevel Systems SIO-485 provides the PC with one asynchronous RS-422/485 serial port which can interface to a variety of industrial equipment. © Sealevel Systems, Inc. 3054 Manual | SL9080 11/2021... -
Page 4: Before You Get Started
Before You Get Started What’s Included The SIO-485 is shipped with the following items. If any of these items are missing or damaged, contact the supplier. • SIO-485 Serial I/O Adapter Advisory Conventions Warning The highest level of importance used to stress a condition where damage could result to the product, or the user could suffer serious injury. -
Page 5: Factory Default Settings
The SIO-485 factory default settings are as follows: Base Electrical Address Specification RS-422 To install the SIO-485 using factory default settings, refer to the Installation page on Page 8. For your reference, record installed SIO-485 settings below: Base Electrical Address Specification ©... -
Page 6: Card Setup
Be careful when selecting the base address as some selections conflict with existing PC ports. The SIO-485 has a total of eight I/O address selections, if more than one switch is closed the board will be non-functional. Leaving all eight switches open will disable the port. - Page 7 Header E2 enables the driver regardless of RTS (RS-422). Header E1, IRQ Selection The SIO-485 has an interrupt selection jumper that should be set prior to use. Consult the user manual for the application software being used to determine the proper setting. E1 selects the interrupt request for the port.
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Page 8: Installation
INSTALLATION Hardware Installation The SIO-485 can be installed in any of the PC expansion slots. The SIO-485 contains several jumper straps for each port which must be set for proper operation. 1. Determine the interface required and configure the SIO-485 accordingly. (Refer to the section on Card Setup) 2. - Page 9 Linux releases. Also included is a series of files explaining proper Linux syntax and typical Linux serial implementations. For the most up to date information on software support, please call Sealevel Systems’ Technical Support, (864) 843-4343. Our technical support is free and available from 8:00AM-5PM Eastern Time, Monday through Friday.
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Page 10: Technical Description
Typically, each end of the RS-422/485 bus must have line terminating resistors. Sealevel Systems provides a 100 Ohm Resistor across each RS-422/485 input and a 1K Ohm pull-up/pull-down combination to bias the receiver inputs. If more than two SIO-485 boards are connected together in a bus, the 100 Ohm resistor must be removed. -
Page 11: Specifications
3.9 inches (9.91 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 12: Appendix A - Troubleshooting
No two adapters can occupy the same I/O address. 3. Make sure the Sealevel Systems adapter is using a unique IRQ. While the Sealevel Systems adapter does allow the sharing of IRQs, many other adapters (i.e., SCSI adapters & on-board serial ports) do not. -
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 Interfaces
(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. 3054 Manual | SL9080 11/2021... -
Page 15: 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. 3054 Manual | SL9080 11/2021... -
Page 16: Appendix E - Silk Screen
Appendix E – SILK SCREEN © Sealevel Systems, Inc. 3054 Manual | SL9080 11/2021... -
Page 17: Appendix F - Schematic
Appendix F – Schematic © Sealevel Systems, Inc. 3054 Manual | SL9080 11/2021... -
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. 3054 Manual | SL9080 11/2021... -
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.