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MINE TELEPHONES AND SIGNALLING APPARATUS
MAGNETO SWITCHBOARDS Wall Pattern
Terminals provide for the connection of a night-bell or audible alarm circuit, actuated by the fall of an indicator shutter. The case is hinged to the backboard, and can be swung forward, affording ready access to indicators, jacks, wiring and terminals. T.286 for 5 lines - 2 Pairs, Plugs and Cords.
OVERALL DIMENSIONS Taken from the ATM Mine Telephones and Signalling Apparatus Catalogue 1928 |
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Last revised: October 06, 2012FM2 |