A Design and Realization of 5B/6B CODEC in Audio Optical Terminal

The basic principles of 5b/6b optical fiber transmission pattern was introduced briefly first. A 5B/6B CODEC design based on FPGA with the design requirements of the audio optical terminal and the detail design drawings and software simulation was given in the system. The simulation was achieved through the very high speed integrated circuit hardware description language and using schematic in top-down's way in EP2C35F672C8 chip in the development environment of QuartusII 7.2. The results showed that the design meet the requirements of 5b/6b encoding and decoding, which had a strong portability, flexible software design and a high operating speed, can be used in actual communication system.