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.
2500C-RADP-RBC Compact Profibus RBC Adapter

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.