|C.B. Floor Switchboards
Switchboards employing lamp signalling throughout have become very popular for private installations.
The framework is matt polished and smaller than that required for magnetic indicator signals.
The line lamps are in strips of 10, and the supervisory lamps mounted individually on the keyboard give double positive supervision.
An alarm bell, to attract attention when a lamp glows, is provided and may be cut off when not required by means of a key.
Hand generator and switching key for power ringing.
Twenty-four volts are required to operate these switchboards.
Partially equipped boards in multiples of 10 lines can be supplied.
Taken from the Ericsson telephone Catalogue No. 26
Last revised: October 12, 2019