LCC Basics

What is LCC?

LCC stands for “Layout Command Control”. It is an NMRA protocol for controlling all the functions on your layout– things like detection, signals, building lighting, as well as the traditional layout control functions.

Will LCC work with my DCC layout?

Yes, DCC and LCC compliment one another. LCC does not make DCC obsolete. The LCC bus allows you to take accessory traffic off of the DCC bus. Only locomotive control needs to remain on the rails.

Will LCC work on a DC layout?

Yes, and also with any other train control method. LCC does not concern itself with any specific type of train control.

Is LCC inter-operable?

Yes, that is why having standards is important. Any manufacturer’s LCC products will inter operate with LCC products from any others. Just like the NMRA set the standards for DCC over 20 years ago, they have now set the standards for LCC. A group of independent volunteers, both modelers and experts in electronics, have together developed the concepts, protocols, interfaces, and documents, for LCC. This OpenLCB group established the standards which the NMRA has approved as LCC. The NMRA has no vested interest in any manufacturer or products. They simply publish the standards that all manufactures may use. Note: this published information on the NMRA web site is from 2016, and may be outdated and/or incomplete.