Whitehall Director
Switch |
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Director Exchanges grew from the
requirement for an automatic switch that could route calls
between a large number of exchanges that were located within
in a small area (e.g. within a city such as London).
Photo: An
electro-mechanical S50 Director Switch.
The bottom left S switch has been replaced by a type 2
uniselector due to a lack of spares of the S50 wiper
assemblies © John Evans.
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| EXIT |
Siemens Director Switch |
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by ©
Light-Straw. Page last updated June
2015 revision.
Checked May 2021.
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