The NCE 5240154 SwitchIt Mk2 Accessory Decoder for 2 Tortoise Switch Machines is the SwitchIt Mk2 — a DCC accessory decoder that controls two Tortoise (or SMAIL Lite) stall-motor switch machines from one small board.What it does: FOR STALL-MOTOR MACHINES ONLY — NOT for use with twin-coil snap switch machines. On-board LED display + push-button programming. Both outputs support the full range of DCC accessory addresses (1–2041). Remembers turnout positions through power outages. Onboard pushbutton inputs for local panel control. Wiring is dead simple: two wires to track, two wires to each switch machine. Type: Accessory (stationary) decoder For: 2 × Tortoise / SMAIL Lite stall-motor switch machines Address range: 1 – 2041 Programming: On-board, no programming-track connection Memory: Position remembered through power loss Local control: Pushbutton inputs on board WARNING: Not compatible with twin-coil snap machines NCE part: 5240154 (Walthers 524-154) Tip: The Switch-It Mk2 is the chip used internally in NCE / Circuitron's SMAIL (the Tortoise + integrated DCC decoder). Use the standalone version when you've already got plain Tortoises installed.About NCE: NCE Corporation (USA) — a leading manufacturer of NMRA-compliant DCC systems, mobile decoders, accessory decoders, and automation electronics. NCE products are renowned for the Pro Cab and Power Cab throttles, the rugged D-series mobile decoders (D13 / D408 / D16), the Switch-It / Switch8 / Snap-It family of accessory decoders for stationary turnout control, the BD20 block detector, and a full cab bus / booster / circuit-breaker ecosystem. Most NCE products are also fully compatible with other NMRA DCC systems.In stock at Oakville Model Trains Depot.
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