sos need help with wiring my mth operating fire house

I tried wiring this to my SC-2 like in the photo in fig 2 below but when i tried prorgraming it nothing worked on the SC-2 it shows A &U 7-20VAC power supply and from terminal strip to A&U on power supply for lights and accessories what am i doing wrong it s like there was not getting enough power for the fire station i could hear the motor

Hi SD40-T2 (great locomotive, great handle):

I know this feeling of despair – wires are connected, yet the desired results aren’t quite happening! Although I can certainly walk you through the ASC version of this scheme wire-by-wire (I’m currently using it on my layout), I’m much less familiar with the SC-2. If you can hold on tight for the evening, I’ll see if I can contact the author of the SC-2 tip and alert him to your trouble. Help is on the way.

Kent J.

sure

sure i have the SC-2 and the legacy control system i dont own the ASC

what gauge wire should i use 18 or 22 with the mth operating fire station

Twenty-two AWG if your transformer’s overcurrent protection trips at about 3 amperes or less. Eighteen AWG if your transformer’s overcurrent protection trups at about 7 amperes or less.

what gauge wires do you think are used in the picture above [?]

That’s not a very clear picture; but I’m pretty sure those aren’t actual wires but rather colored lines representing wires of no particular size.

My lionel SC-2 is powered by track power can i use the CW-80 80-Watt Transformer by running wires from the fire station to the terminal strip then wires from the terminal strip to A and U on the CW-80 80-Watt Transformer but confused on the back of the CW-80 80-Watt Transformer it shows track A and U / Accessory B and U does this mean i connect wire from the terminal strip to B and U on the transformer i am trying to do this right

what wire would most persons use for operating accessories 18 or 22 gauge