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SeaPORT+2/485 TM Part # Sealevel Systems, Inc P.O. Box 830 Liberty, SC 29657 USAPhone: (864) 843-4343FAX: (864) 843-3067www.sealevel.com

Specifications Sealevel Systems SeaPORT+2/485 Page 7 Technical Description The SeaPORT+2/485 utilizes two USB UARTs. These chips feature programmab

Specifications Sealevel Systems SeaPORT+2/485 Page 8 Specifications Environmental Specifications Specification Operating Storage Temperature Range

Appendix A – Troubleshooting Sealevel Systems SeaPORT+2/485 Page 9 Appendix A - Troubleshooting Serial Utility test software is supplied with the S

Appendix B – How To Get Assistance Sealevel Systems SeaPORT+2/485 Page 10 Appendix B - How To Get Assistance Please refer to Appendix A - Troubl

Appendix C - Electrical Interface Sealevel Systems SeaPORT+2/485 Page 11 Appendix C - Electrical Interface RS-422 The RS-422 specification defines t

Appendix D - Asynchronous Communications Sealevel Systems SeaPORT+2/485 Page 12 Appendix D - Asynchronous Communications Serial data communication

Appendix E - Compliance Notices Sealevel Systems SeaPORT+2/485 Page 13 Appendix E - Compliance Notices Federal Communications Commission Statement

Appendix E - Compliance Notices Sealevel Systems SeaPORT+2/485 Page 14 EMC Directive Statement Products bearing the CE Label fulfill the require

Warranty Sealevel Systems SeaPORT+2/485 Page 15 Warranty Sealevel Systems, Inc. provides a lifetime warranty for this product. Should this product f

Contents INTRODUCTION... 1 OVERVIEW...

APPENDIX D - ASYNCHRONOUS COMMUNICATIONS ... 12 APPENDIX E - COMPLIANCE NOTICES ... 13 FEDERAL COMMUNICATIONS

Introduction Sealevel Systems SeaPORT+2/485 Page 1 Introduction Overview The Sealevel Systems equips the PC with 2 USB to RS-422/485 Asynchronous s

Installation Sealevel Systems SeaPORT+2/485 Page 2 Installation Operating System Installation Choose Install Software at the beginning of the CD a

Installation Sealevel Systems SeaPORT+2/485 Page 3 You can access your new COM: ports by using the assigned COM: identifiers as shown above. In

Configuration Sealevel Systems SeaPORT+2/485 Page 4 Configuration Original configuration This device ships from Sealevel Systems with the followin

Configuration Sealevel Systems SeaPORT+2/485 Page 5 Switch Descriptions Figure 1: Switche SW4 L 485 option, OFF for 422. OFF: No effect ON : C

Configuration Sealevel Systems SeaPORT+2/485 Page 6 Switch Examples Figure 2: RS422/485 Interface Configuration 485 Mode Selection OFF :