An electrical connector is provided for terminating a flat electrical circuit. As multiple commands are queued up in a command queue, a next command is identified and immediately stored in a servo position queue, as soon as the next command location is determined. The outer diameters \u03c6d1 and \u03c6d2 satisfies: \u03c6d1<\u03c6d2. Each processing element can compare the received portion of the tokenized input data stream against one or more reference patterns to generate an intermediate result that indicates whether the portion of the tokenized input data stream matches a reference pattern. The invention makes it possible to screen incoming telephone calls without the aid of a special Caller ID telephone set or auxiliary Caller ID display terminal. A skirt is coupled to the pin bosses for reciprocation with the piston head.