Development of High-Speed Multi-Channel Transceiver Circuit, Capable of Extending In-Server Data Transmission Distances by Fujitsu
Fujitsu has successfully developed a high speed multi-channel transceiver circuit which operates at 10 Gbps. The new transceiver would help in extending the in-server data transmission distances by a factor of 1.7 times in comparison to commercially available technologies. The new transceiver would be used as backplane serving as communication channel within multi-process servers that combines multiple CPUs for achieving higher performance. This new technology would compensate for data signal distortion which is evident when the channels are extended. The new technology would extend the current distance from 70 cm to 120 cm, contributing to form large scale high performance server systems which connects far more processors that was previously possible.
The core of the new technology is a new signal processing algorithm that compensates for the amplitude distortion as well as phase distortion which emerges over long backplane channels, so that the signal distortions resulting from a maximum of 41 dB of loss at 10 Gbps can still be completely corrected, resulting in extension of backplane channel by factor of 1.7 to 120 cm. The key characteristics of the new technology are phase-distortion compensation and precise clock-signal generation to minimize the negative impact of noise components that remains after compensating for distortions that occurs from long signal channels.