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 swings open to expose the internal equipment.

Used as a public switchboard on CBS systems.

Maximum service is 5 Junctions and 25 Subscribers.

Introduced circa 1929.

Wiring Diagram - CBS 488 & CBS 489 (Mark II).

Drawing - 9237 (Dated 1929).

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Last revised: November 14, 2023