STERLING TELEPHONE AND ELECTRIC Co. Ltd
SUITABLE FOR BATTERY OR MAGNETO RINGING INSTRUMENTS
No. U 575
Wall Switchboard comprising: Line Indicators, Line Jacks, Local bell Contacts, Operator’s Plug and Cord, and Though Connection Plugs and Cords.
Woodwork is solid Walnut.
The Line Terminals are totally enclosed, but easily accessible for wiring or inspection. The front Portion of the Switchboard swings forward on Hinges giving easy access to the Interior Parts. Separate “Ring-off” Drops are not necessary, as when the Stations are connected together one of the annunciators remains connected in Circuit for indicating the “Clearing-Out” Signal . A 3 inch Bell is provided.
Supplied with 2, 3, 4, 5, 6, 8, 10, 12, 15, 18 or 20 lines.
Taken from the Sterling Catalogue No. 11 & 12
Last revised: April 28, 2021