A physical layer device (PLD), comprising: a first serializer-deserializer (SERDES) device having a first parallel port; a second SERDES device having a second parallel port; a third SERDES device having a third parallel port; and a path selector being selectively configurable to provide either (i) a...http://www.google.com/patents/US7334068?utm_source=gb-gplus-sharePatent US7334068 - Physical layer device having a SERDES pass through mode
