CM-700 is a control module type controller with a CPU, TTL / RS485 communication circuit and ZIG-110 connector. You cannot control dynamixels or other peripheral devices alone with the CM-700. You will need a SUB board. CM-700 SUB Board is composed of a power department, connector department, switch, and an additional circuit for 5 pin peripheral devices. Connections description: PC Link (Serial Cable) & Communication Device Connection Port : LN-101 is used to connect the CM-700 and PC. It is used to download task code or communicate with PC. Also, it can be used for wireless communication module such as ZIG-110 etc., or communication with other external board. Battery Socket : Socket for connecting the battery. Power LED : ON and OFF LED for the power. Power Switch : Used to turn the robot ON / OFF. MODE Button : Used to change the operation mode of CM-700. START Button : Used to START selected mode. 3-Pin Cable Connector : Used to connect Dynamixels using 3 pin cable(TTL Communication) in a daisy chain method. 4-Pin Cable Connector : Used to connect Dynamixels using 4 pin cable (RS-485 Communication) in a daisy chain method. Peripheral Devices Connection Port : Used to connect peripheral devices such as DMS, Touch Sensor, and IR Sensor etc. Mode Display LED : LED to display current operation mode of CM-510. Further informations on on-line Manual