Patent ID: 7813706

Claim:
An impedance matched lane reversal switching system comprising: a first transceiver comprising a first transmitter and a first receiver, an output of the first transmitter being connected to an input of the first receiver and to a first transmission line, the first transceiver disposed at a near end of a lane comprising the first transmission line and a second transmission line; a first terminating resistance comprising a first node connected to the output of the first transmitter, to the input of the first receiver, and the first transmission line; a second transceiver comprising a second transmitter and a second receiver, an output of the second transmitter being connected to an input of the second receiver and to the second transmission line, the second transceiver disposed at the near end of the lane; a second terminating resistance comprising a second node connected to the output of the second transmitter, to the input of the second receiver, and the second transmission line; and a switching circuit for selectively enabling one of a first configuration comprising enabling the first transmitter, utilizing the second receiver, disabling the second transmitter, and not utilizing the first receiver and a second configuration comprising enabling the second transmitter, utilizing the first receiver, disabling the first transmitter, and not utilizing the second receiver, thereby selectively reversing an egress side and an ingress side of the near end of the lane while maintaining impedance matching between the first transceiver and the near end of the lane and between the second transceiver and the near end of the lane.