Thus each rotor selects one of ten permutations for connecting five inputs to five outputs. The resulting permutations are given in the table below. The first line contains the input contacts of the half rotors, the following lines show the arising permutations. Rotor I steps before enciphering whenever at least one of the 23 and 21 pin wheel have an active pin in the proper position. Rotor II is controlled by the 19 and 17 pin wheel in the same manner.
All pin wheels perform one step for each character processed.
Finally, a plug board is used to connect the endplate to the lamp board which recombines the two component using square given above. To encipher, you have to select an initial positions for the two half rotors and four pinwheels. CipherClerk's Applet offers a choice for each wheel's initial position. To specify the plug boards just enter the letters in any order. At present, CipherClerk's Applet doesn't mimics this.