BX3-CBM-1-2 Control box for motorized units installed on BX43F and BX53F2 microscope frames. Compatible with BX3-RFAA reflected light illuminator, U-D7REA revolving nosepiece, BX3M-HSRE hand switch, BX3-UCD8A universal condenser and U-AW attenuator wheel. Up to 4 motorized units can be attached. Communication with PC via RS232 connection. LEDs on front panel display status of motorized units and PC connection. Requires U-HSCBM hand switch for stand-alone use, straight RS232 cable and U-IFCBL200 connection cable. In configurations with encoded units U-D7RES or BX3-RFAS, U-CBS control box and CBSIFCBL200 interface cable are required.