SeaPORT+4TM Part # 2403Sealevel Systems, Inc P.O. Box 830 Liberty, SC 29657 USA Phone: (864) 843-4343FAX: (864) 843-3067www.sealevel.com

Configuration Sealevel Systems SeaPORT+4 Page 7 Switch Examples Continued Port 4 Port 3 Port 2

Specifications Sealevel Systems SeaPORT+4 Page 8 Technical Description The SeaPORT+4 utilizes four USB UARTs. These chips feature programmable baud

Specifications Sealevel Systems SeaPORT+4 Page 9 Specifications Environmental Specifications Specification Operating Storage Temperature Range 0º t

Appendix A – Troubleshooting Sealevel Systems SeaPORT+4 Page 10 Appendix A - Troubleshooting Serial Utility test software is supplied with the Seal

Appendix B – How To Get Assistance Sealevel Systems SeaPORT+4 Page 11 Appendix B - How To Get Assistance Please refer to Appendix A - Troublesho

Appendix C - Electrical Interface Sealevel Systems SeaPORT+4 Page 12 Appendix C - Electrical Interface RS-232 Quite possibly the most widely used c

Appendix C - Electrical Interface Sealevel Systems SeaPORT+4 Page 13 RS-485 RS-485 is backwardly compatible with RS-422; however, it is optimized f

Appendix D - Asynchronous Communications Sealevel Systems SeaPORT+4 Page 14 Appendix D - Asynchronous Communications Serial data communications im

Appendix E - Compliance Notices Sealevel Systems SeaPORT+4 Page 15 Appendix E - Compliance Notices Federal Communications Commission Statement This

Appendix E - Compliance Notices Sealevel Systems SeaPORT+4 Page 16 EMC Directive Statement Products bearing the CE Label fulfill the requirements

Contents INTRODUCTION... 1 OVERVIEW...

Warranty Sealevel Systems SeaPORT+4 Page 17 Warranty Sealevel Systems, Inc. provides a lifetime warranty for this product. Should this product fail

APPENDIX D - ASYNCHRONOUS COMMUNICATIONS ...14 APPENDIX E - COMPLIANCE NOTICES...15 FEDERAL COMMUNICATIONS CO

Introduction Sealevel Systems SeaPORT+4 Page 1 Introduction Overview The Sealevel Systems SeaPORT+4 equips the PC with 4 USB to RS-232/422/485 Asyn

Installation Sealevel Systems SeaPORT+4 Page 2 Installation Operating System Installation Choose Install Software at the beginning of the CD and i

Installation Sealevel Systems SeaPORT+4 Page 3 You can access your new COM: ports by using the assigned COM: identifiers as shown above. In thi

Configuration Sealevel Systems SeaPORT+4 Page 4 Configuration Original configuration This device ships from Sealevel Systems with the following con

Configuration Sealevel Systems SeaPORT+4 Page 5 Switch Descriptions Figure 1: Switches SW2 and SW4 L 485 option, OFF for 422. OFF: No effect ON

Configuration Sealevel Systems SeaPORT+4 Page 6 Switch Examples Figure 2: RS422/485 Interface Configuration 485 Mode Selection OFF : 42