Patent ID: 7529489
Filing Date: 2009-05-05
Classification: H04J,H04L

Abstract:
1. A transponder unit connected to an optical transport network, comprising a first client transceiver, a first cross-switch, a first serializer/deserializer, a first forward error correction element, a second serializer/deserializer and a first network transceiver forming a first set of interconnected elements; a second client transceiver, a second cross-switch, a third serializer/deserializer, a second forward error correction element, a fourth serializer/deserializer and a second network transceiver forming a second set of interconnected elements; said first set and said second set further having cross-connections wherein said first client transceiver has an input terminal connected to a first output terminal of said second cross-switch and an output terminal connected to a first input terminal of said first cross-switch; said second client transceiver has an input terminal connected to a second output terminal of said second cross-switch and an output terminal connected to a second input terminal of said first cross-switch; said first cross-switch has a first output terminal connected to a serial input terminal of said first serializer/deserializer and a second output terminal connected to a serial input terminal of said second serializer/deserializer; said second cross-switch has a first input terminal connected to a serial output terminal of said first serializer/deserializer and a second input terminal connected to a serial output terminal of said second serializer/deserializer; said first serializer/deserializer has parallel output terminals connected to first input terminals to said first forward error correction element and parallel input terminals connected to first output terminals of said second forward error correction element; said second serializer/deserializer has parallel input terminals connected to first output terminals of said first forward error correction element and parallel output terminals connected to first input terminals to said second forward error correction element; whereby first and second clients may be each independently and selectably connected to said optical transport network by said transponder unit.