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MTH Accessory Interface Unit (AIU) Wiring
Universal Wiring
Accessories with 2 contacts
Accessories with 3 contacts
Accessories with 4 contacts
Accessories with 5 contacts
Specific Wiring
AtlasGarGraves
LGB
Lionel
Tortise
Please note that not all of these diagrams have been tested by MTH so use at your own risk.
Some accessories and switches use electric coils to operate. If powered too long, may overheat.
Be aware of what the connections on the AIU are intended for and how they operate.
Refer to your AIU operators manual for more information, or download it here
Have any AIU diagrams that you would like to share?
Email it to us at service@mth-railking.com if you would like it to be posted on our website
Atlas, GarGraves, LGB,
Lionel, & Tortise(Circuitron) are companies not
associated with Mike's Train House.
