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© Sealevel Systems, Inc.  2104 Manual   |  SL9092  9/2021 

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. Sealevel achieved ISO-9001:2015 certification in 2018. 

Warranty Policy 

Sealevel  Systems, Inc.  (hereafter "Sealevel") warrants that the  Product shall  conform to and perform in 
accordance  with  published  technical  specifications  and  shall  be  free  of  defects  in  materials  and 
workmanship for the warranty period. In the event of failure, Sealevel will repair or replace the product at 
Sealevel's sole discretion. Failures resulting from misapplication or misuse of the Product, failure to adhere 
to any specifications or instructions, or failure resulting from neglect, abuse, accidents, or acts of nature 
are not covered under this warranty.  

Warranty service may be obtained by delivering the Product to Sealevel and providing proof of purchase. 
Customer agrees to ensure the Product or assume the risk of loss or damage in transit, to prepay shipping 
charges  to  Sealevel,  and  to  use  the  original  shipping  container  or  equivalent.  Warranty  is  valid  only  for 
original purchaser and is not transferable.  

This  warranty  applies  to  Sealevel  manufactured  Product.  Product  purchased  through  Sealevel  but 
manufactured by a third party will retain the original manufacturer's warranty.  

Non-Warranty Repair/Retest

 

Products returned due to damage or misuse and Products retested with no problem found are subject to 
repair/retest charges. A purchase order or credit card number and authorization must be provided in order 
to obtain an RMA (Return Merchandise Authorization) number prior to returning Product.  

How to obtain an RMA (Return Merchandise Authorization) 

If you need to return a product for warranty or non-warranty repair, you must first obtain an RMA number. 
Please contact Sealevel Systems, Inc. Technical Support for assistance: 

Available  

Monday 

 Friday, 8:00AM to 5:00PM EST 

Phone   

864-843-4343  

Email 

 

support@sealevel.com

 

Trademarks 

Sealevel Systems, Incorporated acknowledges that all trademarks referenced in this manual are the 
service mark, trademark, or registered trademark of the respective company.  

Summary of Contents for SEALINK+485I

Page 1: ...1 Sealevel Systems Inc 2104 Manual SL9092 9 2021 SEALINK 485I User Manual 2104...

Page 2: ...ARE INSTALLATION 6 CONFIGURATION 8 TECHNICAL DESCRIPTION 10 SPECIFICATIONS 11 APPENDIX A TROUBLESHOOTING 12 APPENDIX B HOW TO GET ASSISTANCE 13 APPENDIX C ELECTRICAL INTERFACE 14 APPENDIX D GROUND LOO...

Page 3: ...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 c...

Page 4: ...g to Upstream Host Hub 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 Importan...

Page 5: ...Operating Systems Refer to the appropriate section of the Serial Utilities Software For additional software support please call Sealevel Systems Technical Support 864 843 4343 Our technical support is...

Page 6: ...switch for your specific application Please see the Configuration section for more information The SeaLINK 485I is defaulted to RS 422 mode so changes are only required if you will be using the produ...

Page 7: ...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 Seal...

Page 8: ...position either enables adds or connects based on the function of the switch position listed below Switch SW1 position OFF disables removes or disconnects SW1 Function 1 RS 485 Two Wire Auto Enable Di...

Page 9: ...gure 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 ON 1 2 3 4 5 6 7 8 OFF RS 422 Figure 1 RS 42...

Page 10: ...opening the case No system resources are required i e I O ports or IRQ s LED status indicators for USB Enabled TD and RD Connector Pin Assignments DB25 Male The SeaLINK 485I complies with the EIA 530...

Page 11: ...ing 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 o...

Page 12: ...ED EN will be lit This should allow you to use Sealevel s WinSSD utility and the supplied loopback plug to check communications The supplied loopback plug connects TD to RD If you decide to test the M...

Page 13: ...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 Sealevel Systems maintains a web page on the Internet Our...

Page 14: ...or RS 485 RS 485 is backwardly compatible with RS 422 however it is optimized for party line or multi drop applications The output of the RS 422 485 driver is capable of being Active enabled or Tri St...

Page 15: ...t can cause equipment malfunction or even destruction 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...

Page 16: ...of the character is defined by the transmission of a pre defined number of stop bits usually 1 1 5 or 2 An extra bit used for error detection is often appended before the stop bits Asynchronous Commu...

Page 17: ...17 Sealevel Systems Inc 2104 Manual SL9092 9 2021 Appendix F Silk Screen 3 28 in 2 09in 1 39in...

Page 18: ...to correct the interference at the user s expense EMC Directive Statement Products bearing the CE Label fulfill the requirements of the EMC directive 89 336 EEC and of the low voltage directive 73 23...

Page 19: ...ty Warranty service may be obtained by delivering the Product to Sealevel and providing proof of purchase Customer agrees to ensure the Product or assume the risk of loss or damage in transit to prepa...

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