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GFK-0356Q
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IC655CCM690 Isolated Repeater/Converter
Note:
This product is no longer available. This appendix is for reference by
those already using this product. It has been replaced by catalog number
IC690ACC903 (see Appendix E for details).
This appendix describes how to use the
Isolated Repeater/Converter
(IC655CCM590) with Series
90 PLCs. The following topics are covered in this appendix.
Ŷ
Description of the Isolated Repeater/Converter
Ŷ
System Configurations
Ŷ
Cable Diagrams
Note:
The catalog number for the Isolated Repeater/Converter was previously
IC630CCM390.
Description of the Isolated Repeater/Converter
The Isolated Repeater/Converter (IC655CCM590) can be used for the following purposes.
Ŷ
To provide ground isolation where a common ground cannot be established between
components.
Ŷ
To boost RS-422 signals for greater distance and more drops.
Ŷ
To convert signals from RS-232 to RS-422 or RS-422 to RS-232.
The figure on the next page shows the appearance of the unit and the locations of key features.
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Appendix