Floor mounted 5+25 wooden switchboard (supplied as a 3+5).  This switchboard is fixed to the wall and has a caster on the front section which opens out to expose the internal equipment.

Used as a switchboard on the CBS systems.  Maximum service 5 Junctions and 25 Subscibers.

Introduced circa 1929.

Wiring Diagram - CBS 488 & N489

Drawing - 9237 (Dated 1929)

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Last revised: November 10, 2021