C. B. S. Floor Switchboards
N 440 shown
Central battery signalling switchboards are ideal as satellite exchanges in areas where main installations are C.B. or automatic. They are economical compared with full C.B. and give better operating facilities than magneto.
These switchboards are fitted throughout with our totally enclosed type of indicator.
Double positive supervision is provided.
Ticket clip and box for records of special calls. Mounting space for an automatic dial, when required to work in conjunction with an automatic exchange.
Milliampere-meter to detect leakage of current on the lines. A 22-Volt battery of large type primary cells will operate these switchboards.
|Code No.||Exchange lines||Extension lines||Cord ccts|
Taken from the Ericsson catalogue, edition 26
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