A method and apparatus utilize a data connector, a connection adapter, and a matching transformer. The data connector receives a data signal from a communication line. The connection adapter, coupled to the data connector, receives the data signal with the data connector, adapts the data signal from the data connector to a coax connector, and communicates the data signal to the coax connector. The matching transformer, coupled to a coax cable, performs impedance matching between a first impedance associated with the coax connector and a second impedance associated with the coax cable communicating the data signal.

A method and apparatus utilize a data connector, a connection adapter, and a matching transformer. The data connector receives a data signal from a communication line. The connection adapter, coupled to the data connector, receives the data signal with the data connector, adapts the data signal from the data connector to a coax connector, and communicates the data signal to the coax connector. The matching transformer, coupled to a coax cable, performs impedance matching between a first impedance associated with the coax connector and a second impedance associated with the coax cable communicating the data signal.

An example apparatus includes a connection module. The example connection module includes a connection interface and a connection matrix having a root transmission line to conduct signals to and from the connection interface. The connection matrix also includes branch transmission lines that are connectable electrically to the root transmission line to conduct the signals to and from the root transmission line. Each of the branch transmission lines is part of an electrical pathway between a device and the root transmission line. A housing encloses the connection matrix and enables access to the connection interface. The root transmission line and the branch transmission lines are each multi-conductor transmission lines that conduct the signals in transverse electromagnetic (TEM) mode.

An example apparatus includes a connection module. The example connection module includes a connection interface and a connection matrix having a root transmission line to conduct signals to and from the connection interface. The connection matrix also includes branch transmission lines that are connectable electrically to the root transmission line to conduct the signals to and from the root transmission line. Each of the branch transmission lines is part of an electrical pathway between a device and the root transmission line. A housing encloses the connection matrix and enables access to the connection interface. The root transmission line and the branch transmission lines are each multi-conductor transmission lines that conduct the signals in transverse electromagnetic (TEM) mode.

A controlled-power RJ45 socket includes a housing having a cavity to receive an RJ45 plug. The socket further includes electrical contacts positioned in the cavity and that come in contact with electrical contacts of the RJ45 plug when the RJ45 plug is plugged into the RJ45 socket. A switch is positioned to disconnect the power to the electrical contacts of the RJ45 socket before the electrical contacts of the RJ45 plug are physically detached from the electrical contacts of the RJ45 socket during a de-mating of the RJ45 plug from the RJ45 socket.

A connection switching device is provided which connects a plug, having a plug pin connected to an inspecting circuit, to a receptacle connector connecting an antenna and a transmission/reception circuit, and switches a connection to a parallel connection where the inspection circuit is connected to the antenna and to the transmission/reception circuit. The receptacle connector includes a first contact, a second contact, and a normally closed terminal that is brought into elastic contact with the first contact and the second contact. The plug includes a first plug pin being brought into contact with the first contact, a second plug pin being brought into contact with the second contact, and an insulating projection being inserted between at least one of the first and second contacts and the normally closed terminal to insulate between the at least one of the first and second contacts and the normally closed terminal.

A coaxial connector has a selectively engageable radio frequency interference shield.

A coaxial connector has a selectively engageable radio frequency interference shield.

A controlled-power RJ45 socket includes a housing having a cavity to receive an RJ45 plug. The socket further includes electrical contacts positioned in the cavity and that come in contact with electrical contacts of the RJ45 plug when the RJ45 plug is plugged into the RJ45 socket. A switch is positioned to disconnect the power to the electrical contacts of the RJ45 socket before the electrical contacts of the RJ45 plug are physically detached from the electrical contacts of the RJ45 socket during a de-mating of the RJ45 plug from the RJ45 socket.

A test coaxial connector has a probe portion with a small height, and prevents breakage of a switch-equipped coaxial connector even when the test coaxial connector is not properly fitted to the switch-equipped coaxial connector. The test coaxial connector includes a housing and a probe housed in the housing. The probe is formed of one continuous structure having elasticity, the structure including a contact at or near an end portion of the structure and including, at or near another end portion of the structure, a connection portion to which a central conductor of a coaxial cable is to be connected.