Abstract: An antenna mount includes a main member, a first contacting member, a second contacting member, and a driving member. The main member has a chamber therein to receive the first contacting member, the second contacting member and the driving member. The first contacting member electrically connects to a signal wire of a cable for signal transmission, and the main member electrically connects to a ground wire of the cable. Two ends of the second contacting member are respectively connected to the main member and contacted with the first contacting member, wherein the second contacting member has a predetermined resistance. Once a connector of an antenna is engaged, the driving member is moved to separate the second contacting member and the first contacting member; and when the connector of the antenna is disengaged, the second contacting member contacts with the first contacting member again as a protective circuit.

Abstract: An antenna mount includes a main member, a first contacting member, a second contacting member, and a driving member. The main member has a chamber therein to receive the first contacting member, the second contacting member and the driving member. The first contacting member electrically connects to a signal wire of a cable for signal transmission, and the main member electrically connects to a ground wire of the cable. Two ends of the second contacting member are respectively connected to the main member and contacted with the first contacting member, wherein the second contacting member has a predetermined resistance. Once a connector of an antenna is engaged, the driving member is moved to separate the second contacting member and the first contacting member; and when the connector of the antenna is disengaged, the second contacting member contacts with the first contacting member again as a protective circuit.

Abstract: An apparatus and method for power management includes a first power supply module for obtaining power according to Power over Ethernet (PoE) technology and transmitting the power into a first power supply; a second power supply module providing a second power supply; a power detecting module outputting a first power voltage value corresponding to the first power supply; a power switching module receiving and outputting the first power supply, and outputting the second power supply when a switching signal is received; a mode determination module determining auto switching mode or manual switching mode and thereby generating an auto switching mode signal or manual switching mode signal; a control module transmitting a notification message when the first voltage value fails to meet a predetermined voltage during manual switching mode, and transmitting the switching signal when the first voltage fails to meet the predetermined voltage during auto switching mode.

Abstract: A circuit board clamping device is applied to at least two spaced and stacked circuit boards, wherein the two circuit boards are spaced apart and fixed by a plurality of spacing posts. The circuit board clamping device includes a securing member, a pressing member and a forcing member. The securing member can be disposed on one of the circuit boards and adjacent to the spacing posts. The pressing member can be disposed on the securing member and is used to press the spacing posts. The forcing member is disposed on the pressing member and is engaged with the pressing member. The two circuit boards are securely stacked and coupled to each other by the pressing member pressing the spacing posts.

Abstract: A circuit board clamping device is applied to at least two spaced and stacked circuit boards, wherein the two circuit boards are spaced apart and fixed by a plurality of spacing posts. The circuit board clamping device includes a securing member, a pressing member and a forcing member. The securing member can be disposed on one of the circuit boards and adjacent to the spacing posts. The pressing member can be disposed on the securing member and is used to press the spacing posts. The forcing member is disposed on the pressing member and is engaged with the pressing member. The two circuit boards are securely stacked and coupled to each other by the pressing member pressing the spacing posts.