1987 – Nov – Cornish – Aberdeen – Werris Creek CTC – Digital Transmissin System
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R. Cornish
Nokia Telecommunications
Nokia Telecommunications supplied the digital transmission system on optical fibre between Muswellbrook and Werris Creek. There are two parallel systems; an 8 Mb/s trunk system and a 2 Mb/s branching system.
The transmission of the telephone voice and the data information for the CTC is by digital means using Pulse Code Modulation and optical carriers over pairs of glass fibres in the Olex cables.