GE 90-30 PLC Series Installation And Hardware Manual page 367

IC655CCM690 Isolated Repeater/Converter
Appendix
C
This appendix describes how to use the Isolated Repeater/Converter (IC655CCM590) with Series
90 PLCs. The following topics are covered in this appendix.
Description of the Isolated Repeater/Converter
The Isolated Repeater/Converter (IC655CCM590) can be used for the following purposes.
The figure on the next page shows the appearance of the unit and the locations of key features.
GFK-0356Q
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 It has been replaced by catalog number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).
Description of the Isolated Repeater/Converter
System Configurations
Cable Diagrams
Note: The catalog number for the Isolated Repeater/Converter was previously
IC630CCM390.
To provide ground isolation where a common ground cannot be established between
components.
To boost RS-422 signals for greater distance and more drops.
To convert signals from RS-232 to RS-422 or RS-422 to RS-232.
C-1