Abstract: An electrical wiring device including a fault detection circuit and a test fault circuit. The fault detection circuit is configured to detect real, simulated and test fault conditions. The test fault circuit is configured to generate one or more test pulses that cause said test fault condition. Wherein said one or more test pulses are generated to occur outside of an active region of said fault detection circuit, and wherein the one or more test pulses do not affect a leakage current.

Abstract: Software code for operating a circuit interrupting device having an auto-monitoring circuit for automatically testing various functions and structures of the device. The auto-monitoring circuit initiates the software code which includes an auto-monitoring routine which, among other things, establishes a self-test fault during the positive or negative half-wave of an AC power cycle and determines whether the detection mechanisms within the device properly detect the self-test fault. An early detection signal indicates that the self-test fault was properly detected without interfering with the normal operation of the detection circuitry and without causing a false trip within the device. Additional functionality of the software code permits automatic verification that the device is properly wired, that is, not miswired, and determines whether the device has reached the end of its useful life.

Abstract: An electrical wiring device including a fault detection circuit and a test fault circuit. The fault detection circuit is configured to detect real, simulated and test fault conditions. The test fault circuit is configured to generate one or more test pulses that cause said test fault condition. Wherein said one or more test pulses are generated to occur outside of an active region of said fault detection circuit, and wherein the one or more test pulses do not affect a leakage current.

Abstract: A circuit interrupting device having an auto-monitoring circuit for periodically testing various functions and structures of the device. The auto-monitoring circuit initiates an auto-monitoring routine which, among other things, generates a self-test fault condition and determines whether the detection mechanisms within the device properly detect the self-test fault. A test fault circuit is configured to generate one or more test pulses that cause the self-test fault condition and the test pulses are generated to occur outside of an active region of the fault detection circuit.

Abstract: A circuit interrupting device having an auto-monitoring circuit for periodically testing various functions and structures of the device. The auto-monitoring circuit initiates an auto-monitoring routine which, among other things, generates a self-test fault condition and determines whether the detection mechanisms within the device properly detect the self-test fault. A test fault circuit is configured to generate one or more test pulses that cause the self-test fault condition and the test pulses are generated to occur outside of an active region of the fault detection circuit.

Abstract: Software code for operating a circuit interrupting device having an auto-monitoring circuit for automatically testing various functions and structures of the device. The auto-monitoring circuit initiates the software code which includes an auto-monitoring routine which, among other things, establishes a self-test fault during the positive or negative half-wave of an AC power cycle and determines whether the detection mechanisms within the device properly detect the self-test fault. An early detection signal indicates that the self-test fault was properly detected without interfering with the normal operation of the detection circuitry and without causing a false trip within the device. Additional functionality of the software code permits automatic verification that the device is properly wired, that is, not miswired, and determines whether the device has reached the end of its useful life.

Abstract: A method for selectively modifying an information signal at a remote site in a telecommunications system having a head end and a number of remote sites connected to form a ring. An initiation signal is received at a head end. The initiation signal indicates when to start modifying the information signal. Further, the method retrieves at least one stored modification signal. The method also transmits the modification signal to at least one selected remote site over a packet ring network of the telecommunications system. The packet ring network includes ring switches that self-learn the location of network devices based on addresses in packets processed by the switches and which learn that addresses of network devices associated with other ring switches are reachable out of at least one ring port of the ring switch. The information signal is modified with the modification signal. The method also detects the end of the modification signal and ends the modifying of the information signal.