Abstract: A converged power and network management system comprises a modular power distribution unit and a modular network switch unit. The modular power distribution unit and modular network switch unit may be physically and electrically engaged, which enables the modular power distribution unit to provide power to the modular network switch.

Abstract: A Power over Ethernet (PoE) system that includes a power source, an Ethernet transmission line, a powered device and a reset device is provided. The power source is configured to generate an electric power signal having a power level. The powered device is configured to receive the electric power signal through the Ethernet transmission line. The reset device includes a power terminal and a reset circuit. The power terminal is electrically coupled to the Ethernet transmission line. The reset circuit is electrically coupled between the power terminal and a ground terminal. Upon receiving a control signal, the reset circuit is configured to vary a voltage level of the electric power signal from the power level to a non-zero reset level for a predetermined time period to reset the powered device.

Abstract: A Power over Ethernet (PoE) system that includes a power source, an Ethernet transmission line, a powered device and a reset device is provided. The power source is configured to generate an electric power signal having a power level. The powered device is configured to receive the electric power signal through the Ethernet transmission line. The reset device includes a power terminal and a reset circuit. The power terminal is electrically coupled to the Ethernet transmission line. The reset circuit is electrically coupled between the power terminal and a ground terminal. Upon receiving a control signal, the reset circuit is configured to vary a voltage level of the electric power signal from the power level to a non-zero reset level for a predetermined time period to reset the powered device.

Abstract: A network device that includes a power source device (PSE) circuit, a MOS switch, a network connector and a detection unit is provided. The network connector has a first and a second terminal electrically coupled to the voltage source and to the ground terminal through the MOS switch respectively. Under the condition that the PSE circuit is not activated, the detection unit detects a first non-zero voltage pulse at the second terminal to determine that a powered device is attached to the network connector to activate the PSE circuit to generate and transfer the power to the powered device through the network connector. Under the condition that the PSE circuit is activated, the detection unit detects a second non-zero voltage pulse at the second terminal to determine that the powered device is detached from the network connector to deactivate the PSE circuit to stop generating the power.

Abstract: A network device that includes a power source device (PSE) circuit, a MOS switch, a network connector and a detection unit is provided. The network connector has a first and a second terminal electrically coupled to the voltage source and to the ground terminal through the MOS switch respectively. Under the condition that the PSE circuit is not activated, the detection unit detects a first non-zero voltage pulse at the second terminal to determine that a powered device is attached to the network connector to activate the PSE circuit to generate and transfer the power to the powered device through the network connector. Under the condition that the PSE circuit is activated, the detection unit detects a second non-zero voltage pulse at the second terminal to determine that the powered device is detached from the network connector to deactivate the PSE circuit to stop generating the power.

Abstract: A holder is for holding an electronic device, and includes a housing, a support frame, and a resilient element. The housing is disposed on a rear face of the electronic device, defines a receiving space, and includes a barrier plate abutting against one side of the electronic device. The support frame is disposed in the receiving space and is movable relative to the housing. The support frame includes a catch member which is exposed from the housing, which is disposed opposite to the barrier plate, and which is engaged with a retaining hole in the rear face, and a push button portion exposed from the housing. The push button portion is operable to permit disengagement of the catch member from the retaining hole. The resilient element is disposed in the receiving space to provide the catch member with a restoring spring force.

Abstract: A holder is for holding an electronic device, and includes a housing, a support frame, and a resilient element. The housing is disposed on a rear face of the electronic device, defines a receiving space, and includes a barrier plate abutting against one side of the electronic device. The support frame is disposed in the receiving space and is movable relative to the housing. The support frame includes a catch member which is exposed from the housing, which is disposed opposite to the barrier plate, and which is engaged with a retaining hole in the rear face, and a push button portion exposed from the housing. The push button portion is operable to permit disengagement of the catch member from the retaining hole. The resilient element is disposed in the receiving space to provide the catch member with a restoring spring force.