An electrical device including an electrical power cord secured to a base of the electrical device by using a plug having a pair of resilient prongs. The blade is so formed as to define means for mechanically retaining and electrically connecting the electric wire, and which act on an end portion of the inner conductor. These available code word lengths and code rates are implemented as a subset of starting code word lengths, which are length-reduced by shortening and puncturing selected bit positions in the starting code word length to attain the desired one of the available code word lengths and code rates. The available credits may then be updated, by the transmit unit in response to receiving a selected transaction from the arbitration, and the transmit unit may then transmit the selected transaction, and update the available credits and the available tokens once the transaction has been sent. The time during which the pixels are collectively activated to photo-convert incident light into charge defines the exposure period for the sensor array.