Abstract: The present invention discloses a centralized power supply shielding structure of a cabinet-level server, where the structure includes multiple plug-in frames, a power supply copper bar which is configured to supply power to the multiple plug-in frames, and an inner container shielding can. Multiple plugs of the power supply copper bar are correspondingly inserted into the multiple plug-in frames to supply power to the multiple plug-in frames in a centralized way. The inner container shielding can wraps on a periphery of the power supply copper bar to shield the multiple plug-in frames from the power supply copper bar. The cabinet-level server and its centralized power supply shielding structure of the present invention implement a shielding structure for centralized power supply by a copper bar of integration of a frame and a cabinet, which can be applied in an application scene of an open rack and has a simple structural design.

Abstract: An interface circuit and a communication device are provided. The interface circuit includes a transformer unit, a protection unit, and an interface unit. A secondary side of the transformer unit is connected with a chip. A first terminal of the protection unit is electrically connected with a center tap of a primary side of the transformer unit, and a second terminal of the protection unit is grounded. A first access terminal of the interface unit is connected with a first port of the primary side of the transformer unit, a second access terminal of the interface unit is connected with a second port of the primary side of the transformer unit, and a third access terminal and a fourth access terminal of the interface unit are electrically connected with the first terminal of the protection unit respectively.

Abstract: An interface circuit and a communication device are provided. The interface circuit includes a transformer unit, a protection unit, and an interface unit. A secondary side of the transformer unit is connected with a chip. A first terminal of the protection unit is electrically connected with a center tap of a primary side of the transformer unit, and a second terminal of the protection unit is grounded. A first access terminal of the interface unit is connected with a first port of the primary side of the transformer unit, a second access terminal of the interface unit is connected with a second port of the primary side of the transformer unit, and a third access terminal and a fourth access terminal of the interface unit are electrically connected with the first terminal of the protection unit respectively.