Number Deseriplion Weight Arm CCP-3000 822-1746-002 Cursor Control Panel 2.60 90.0 CCP-3000 822.1746-002 Cursor Control Panel 2.60 90.0 CCU-3001C 822.2362-003 Data Concentrator Unit 5.0 325 OCU-3001C 822-2362-003 Data Concentrator Unit 5.0 325 ECU-3000 822.1200-209 External Compensa