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Function Decoders

Function decoders offer ONLY auxilliary/function outputs, and DO NOT have output for controlling motor or sound.

They have a wide variety of applications, but most commonly used to add lighting, smoke, or auto-coupling control to a vehicle that has no motor. For example, many modern steam locos have a DCC decoder socket in the tender, which gives control of the motor, so a separate function decoder can be added in the boiler of that loco to provide control of loco lamps, firebox glow and other special features.

Another common use is to provide DCC control of coach lighting, which is particularly effective where the decoder supports a stay-alive capacitor which helps eliminate flicker.

× Cancel	Zimo MX688N18		15x9.5x2.8mm 0.7A 6 Functions Next18				obsolete
× Cancel	Zimo MX689N18		14x9.5x2.1mm 0.7A 8 Functions Next18 Stay-alive possible via LifeLink from pads on reverse				£25
× Cancel	Zimo MX671		10.5x8x2.2mm 0.7A 6 Functions Available in 6pin direct version (N) or wires only version (wired version includes Ground wire for stay-alive pre-connected). Direct connection of 25V stay-alive supported				MX671 Wires-only (often supplied with 6pin or 8pin plug on the wired harness) £21 low stock available MX671N 6pin Direct £25 low stock available
× Cancel × Cancel	Zimo MX686		20.5x15.5x4mm 1.2A 8 Functions 21pin direct version				MX686D 21pin MTC Direct £30 temp out of stock
× Cancel	Zimo MX685		20x11x3.5mm 1A 8 Functions wires-only version				MX685 wires only £26
× Cancel	Zimo MX675		25x15x4mm 1.8A, 12 Functions, 2 Servo wires-only version				MX675V wires only £34 special order (no stock held)
× Cancel	Zimo MX605SL		Lighting function decoder for Kato models				MX605SL Headlight PCB function decoder designed for Kato N gauge models e.g. Class 800 £18 temp out of stock special order
× Cancel	Zimo MX687W		28x15.5x4mm 1.2A 8 Functions with stay-alive facility, full feature/power version of MX686 wires-only version				MX687W wires only £36 limited stock