- ROBOTIS Dynamixel RX-28 User's Manual
DYNAMIXEL 
RX-28 
2-3. Dynamixel Wiring   
Pin Assignment  The connector pin assignments are as the following. The two connectors on the 
Dynamixel are connected pin to pin, thus the RX-28 can be operated with only one 
connector attached. 
  ( Note : The pin number of connector’s edge cut side is PIN1) 
PIN1: GND 
PIN2: VDD(12V~21V) 
PIN4: D- 
PIN3: D+ 
PIN4: D- 
PIN3: D+ 
PIN2: VDD(12V~21V) 
PIN1: GND 
Wiring  Connect the RX-28 actuators pin to pin as shown below. Many RX-28 actuators can be 
controlled with a single bus in this manner. 
Control Box “CM-2 
Main Controller  To operate the Dynamixel actuators, the main controller must support RS485 UART. A 
proprietary controller can be used, but the use of the Dynamixel controller CM-2 PLUS is 
recommended. 
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