<p>The 2500C-RADP-RBC is a Compact Profibus RBC Adapter which allows the use of CTI 2500 Series® Compact Profibus RBCs in Texas Instruments Series 500 I/O bases. It provides a transparent path for upgrading old Series 500 systems without the requirement to completely replace the system.  Failed 500 Series RBCs can be replaced with CTI 2500 Series® Compact equivalents. Then, when your budget allows, you can plan a complete replacement of your system to CTI 2500 Series® - without losing your investment in the replaced modules!</p>