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The Signals and Communication Branch was responsible for the construction, maintenance and repair of signalling equipment, telegraphs and telephones throughout the New South Wales rail network. While the mechanical process of interlocking (resetting railway tracks allowing locomotives to follow branch lines, pass through junction points, use crossing loops or detour onto spur lines) continued the Branch's work became increasingly focussed on new technologies that included fibre optic cables, remote control signalling, emergency communication systems, and new passenger information systems.User Contributed Tags
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