|   | 1 | = WAM User Lines = | 
                  
                          |   | 2 |  | 
                  
                          |   | 3 | == Pinout / Information == | 
                  
                          |   | 4 |  | 
                  
                          |   | 5 | **Note: The User Lines are not USB 2.0 compatible** | 
                  
                          |   | 6 |  | 
                  
                          |   | 7 | The WAM and Wrist have 4 “user” lines that start at the backplate of the base of the WAM and exit as a wiring harness at the opening in the top plate of the Wrist.  | 
                  
                          |   | 8 |  | 
                  
                          |   | 9 | The 4 lines are not 4 continuous wires, but consist of multiple wiring harnesses strung together | 
                  
                          |   | 10 | through several connectors and traces on a PCB. The wiring is a mix of 20 and 24 AWG wire | 
                  
                          |   | 11 | and is shielded for approximately half of its length. | 
                  
                          |   | 12 |  | 
                  
                          |   | 13 | [http://web.barrett.com/support/WAM_Documentation/WAM-UserWiring.pdf| WAM User Wiring] |