Lionel ASC (Accessory Switch Controller) Basics

The ASC (Accessory Switch Controller), 6-14182 can be used to either both switches or accessories. We have separate tutorials to show you the many ways each of these can be wired. Your switches or accessories will be attached to one end of the ASC. The other controls the power and command signal inputs. Think of this as a “Business” and “Power” side or “Out” and “In.” For the ASC, or any of our other controllers, to work, it needs two things fed into it; power to operate and command signals from the command control base (TMCC or LEGACY) to tell it what to do.

ASC diagram

Outline of ASC terminals.

No matter what you connect on the business end, your connections on the power end will be the same. The ASC is designed to take 14V of constant AC voltage, like the rest of your accessories. The Amperage draw of the ASC and similar controllers is minimal.

The ASC is also designed to be wired in a daisy chain with additional controllers. They can be ASCs, BPCs or any of the other Lionel controllers offered. You can mount all of your controllers on one convenient board, connecting the chain to the command station and power supply along with all of the accessories, switches, etc. with bus wires around your layout.

Power and Data Connections

The Power connections are very simple. These are the four terminals found in the lower right corner. Connect the first “A” terminal to your 14V AC Hot and the first “U” to the AC Ground feed from your accessory power supply. Use the second “A” and “U” to connect to the next controller in the chain and so on.

Power Connections

Power and data connections from the source are shown coming from the left. Connections to the next controller are shown to the right.

The Command inputs require the use of a Command Base Cable (6-14191) which plugs into the computer terminal on your command base. Attach the Red wire to the “DAT” connection and the Green wire to the “COM” connection. To connect additional controllers, use a Controller-to-Controller Cable (6-14193 or 6-14196). Attach those wires to the same terminals (the data connections do not have duplicate connectors due to the small diameter of wire required.)

These same instructions apply to the AMC, BPC, and OTC controllers.

Attaching Accessories / Switches

Although we will cover the specifics in more detail in additional pages, a few general notes about the business end of the ASC are in order.

ASC

This ASC is wired for power and has a jumper between the COMM posts on the business end.

Note that two common terminals are provided. These terminals are not linked within the ASC. One will operate Switches 3 and 4 or Accessories 5-8 the other Switches 1 and 2 or Accessories 1-4. If you want to use a single input, you may wire a jumper between the two “COMM” posts. This gives you added flexibility when assigning your accessories and switches if you have some which operate off of ground and others off of hot AC.

For a review of this information and some more insight into the workings of the ASC, watch this brief video: 

2 responses

7 06 2013
Sinclair™

Question for you. Is there a way to wire a layout to run TMCC and conventional? As in, when I build my layout, and I already have to wire it in blocks because of the number of conventional locomotives I own, but I do own a couple of TMCC locomotives and want to use them in that manner. But I know there will also be times I want to not run things with the remote. At these times I’d like to stand in one place and run a “switchboard” and the handles on transformers to control speed. Is this possible?

7 06 2013
lionelllc

Yes. Your blocks will still work with TMCC or LEGACY. There are a few different ways it can be wired, but it will certainly work. All of our systems have been designed to remain conventional-compatible.

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