A converter comprising: a first connector configured to transmit one or more signals, wherein the one or more signals include a power signal and a network signal; a second connector configured to receive the one or more signals; a first cable with a first impedance; a second cable with a second impedance; an impedance module; a high pass module; and a low pass module, wherein: the first connector is connected to the impedance module via the first cable; the second connector is connected to the impedance module via the second cable; the impedance module is configured to convert the first impedance of the first cable to the second impedance of the second cable such that the one or more signals are transmitted from the first connector to the second connector via the first cable and the second cable; characterized in that, the high pass module is connected to the impedance module and the second connector, respectively, and is configured to transmit the network signal between the impedance module and the second connector and suppress the power signal between the impedance module and the second connector; and the low pass module is connected to the first connector and the second connector, respectively, and is configured to transmit the power signal between the impedance module and the second connector and suppress the network signal between the impedance module and the second connector. a first connector configured to transmit one or more signals, wherein the one or more signals include a power signal and a network signal; a second connector configured to receive the one or more signals; a first cable with a first impedance; a second cable with a second impedance; an impedance module; a high pass module; and a low pass module, wherein: the first connector is connected to the impedance module via the first cable; the second connector is connected to the impedance module via the second cable; the impedance module is configured to convert the first impedance of the first cable to the second impedance of the second cable such that the one or more signals are transmitted from the first connector to the second connector via the first cable and the second cable; characterized in that, the high pass module is connected to the impedance module and the second connector, respectively, and is configured to transmit the network signal between the impedance module and the second connector and suppress the power signal between the impedance module and the second connector; and the low pass module is connected to the first connector and the second connector, respectively, and is configured to transmit the power signal between the impedance module and the second connector and suppress the network signal between the impedance module and the second connector. the first connector is connected to the impedance module via the first cable; the second connector is connected to the impedance module via the second cable; the impedance module is configured to convert the first impedance of the first cable to the second impedance of the second cable such that the one or more signals are transmitted from the first connector to the second connector via the first cable and the second cable; characterized in that, the high pass module is connected to the impedance module and the second connector, respectively, and is configured to transmit the network signal between the impedance module and the second connector and suppress the power signal between the impedance module and the second connector; and the low pass module is connected to the first connector and the second connector, respectively, and is configured to transmit the power signal between the impedance module and the second connector and suppress the network signal between the impedance module and the second connector.