Layout Command Control™ (LCC)

NMRA LCC LogoThis page contains Standard and Technical Note documents that the NMRA LCC Working Group is managing through the various stages of the Adoption Process being made available here as:

Adopted LCC Documents (2021-04-25)

Note: The documents below were all adopted on 2021-07-02, which is shown on the LCC cover page, however to minimise confusion the date in the filename is kept the same as the OpenLCB document date.

Download all PDF files in a single ZIP file: LCC-Standards-and-TechNotes-Adopted-2021-07-02

9.7.0 – Information
TN-9.7.0.1-Glossary-2021-04-25 (Previous) Glossary – Technical Note
TN-9.7.0.2-CommonInformation-2021-04-25 (Previous) Common Information – Technical Note
S-9.7.0.3-UniqueIdentifiers-2021-04-25 (Previous) Unique Identifiers – Standard
TN-9.7.0.3-UniqueIdentifiers-2021-04-25 (Previous) Unique Identifiers – Technical Note
S-9.7.0.4-EventIdentifiers-2021-04-25 (Previous) Event Identifiers – Standard
TN-9.7.0.4-EventIdentifiers-2021-04-25 (Previous) Event Identifiers – Technical Note
9.7.1 – Physical Layer
S-9.7.1.1-CanPhysical-2021-04-25 (Previous) (Previous) CAN Physical Layer – Standard
TN-9.7.1.1-CanPhysical-2021-04-25 (Previous) (Previous) CAN Physical Layer – Technical Note
9.7.2 – Data Link Layer
S-9.7.2.1-CanFrameTransfer-2021-04-25 (Previous) CAN Frame Transfer – Standard
TN-9.7.2.1-CanFrameTransfer-2021-04-25 (Previous) CAN Frame Transfer – Technical Note
9.7.3 – Network & Transport Layer
S-9.7.3-MessageNetwork-2021-04-25 (Previous) Message Network – Standard
TN-9.7.3-MessageNetwork-2021-04-25 (Previous) Message Network – Technical Note
S-9.7.3.1-EventTransport-2021-04-25 (Previous) Event Transport – Standard
TN-9.7.3.1-EventTransport-2021-04-25 (Previous) Event Transport – Technical Note
S-9.7.3.2-DatagramTransport-2021-04-25 (Previous) Datagram Transport – Standard
TN-9.7.3.2-DatagramTransport-2021-04-25 (Previous) Datagram Transport – Technical Note
9.7.4 – Session Layer
S-9.7.4.1-ConfigurationDescriptionInformation-2021-04-25 (Previous) Configuration Description Information – Standard
TN-9.7.4.1-ConfigurationDescriptionInformation-2021-04-25 (Previous) Configuration Description Information -Technical Note
S-9.7.4.2-MemoryConfiguration-2021-04-25 (Previous) Memory Configuration – Standard
TN-9.7.4.2-MemoryConfiguration-2021-04-25 (Previous) Memory Configuration – Technical Note
S-9.7.4.3-SimpleNodeInformation-2021-04-25 (Previous) Simple Node Information – Standard
TN-9.7.4.3-SimpleNodeInformation-2021-04-25 (Previous) Simple Node Information – Technical Note
S-9.7.4.4-FirmwareUpgrade-2021-04-25 Firmware Upgrade – Standard
TN-9.7.4.4-FirmwareUpgrade-2021-04-25 Firmware Upgrade – Technical Note
S-9.7.4.5-BroadcastTime-2021-04-25 Broadcast Time – Standard
TN-9.7.4.5-BroadcastTime-2021-04-25 Broadcast Time – Technical Note

Draft LCC Documents – Submitted to the NMRA for Public Review and Adoption

A Summary of Changes with extra comments is available here: Summary-of-Changes-to-LCC-Documents-2024-07-22-extra-comments

Download all Draft PDF files in a single ZIP file: Submission-To-NMRA-LCC-Advisory-Board-2024-07-22.zip

9.7.0 – Information
S-9.7.0.3-UniqueIdentifiers-2024-07-22-Draft Unique Identifiers – Standard
TN-9.7.0.3-UniqueIdentifiers-2024-07-22-Draft Unique Identifiers – Technical Note
S-9.7.0.4-EventIdentifiers-2024-07-22-Draft Event Identifiers – Standard
TN-9.7.0.4-EventIdentifiers-2024-07-22-Draft Event Identifiers – Technical Note
9.7.1 – Physical Layer
S-9.7.1.1-CanPhysical-2024-07-22-Draft CAN Physical Layer – Standard
TN-9.7.1.1-CanPhysical-2024-07-22-Draft CAN Physical Layer – Technical Note
9.7.2 – Data Link Layer
S-9.7.2.1-CanFrameTransfer-2024-07-22-Draft CAN Frame Transfer – Standard
TN-9.7.2.1-CanFrameTransfer-2024-07-22-Draft CAN Frame Transfer – Technical Note
9.7.3 – Network & Transport Layer
S-9.7.3-MessageNetwork-2024-07-22-Draft Message Network – Standard
TN-9.7.3-MessageNetwork-2024-07-22-Draft Message Network – Technical Note
S-9.7.3.1-EventTransport-2024-07-22-Draft Event Transport – Standard
TN-9.7.3.1-EventTransport-2024-07-22-Draft Event Transport – Technical Note
9.7.4 – Session Layer
S-9.7.4.1-ConfigurationDescriptionInformation-2024-07-22-Draft Configuration Description Information – Standard
TN-9.7.4.1-ConfigurationDescriptionInformation-2024-07-22-Draft Configuration Description Information – Technical Note
S-9.7.4.2-MemoryConfiguration-2024-07-22-Draft Memory Configuration – Standard
TN-9.7.4.2-MemoryConfiguration-2024-07-22-Draft Memory Configuration – Technical Note
S-9.7.4.3-SimpleNodeInformation-2024-07-22-Draft Simple Node Information – Standard
TN-9.7.4.3-SimpleNodeInformation-2024-07-22-Draft Simple Node Information – Technical Note
S-9.7.4.6-TrainControl-2024-07-22-Draft Train Control – Standard
TN-9.7.4.6-TrainControl-2024-07-22-Draft Train Control – Technical Note
S-9.7.4.7-TrainSearch-2024-07-22-Draft Train Search – Standard
TN-9.7.4.7-TrainSearch-2024-07-22-Draft Train Search – Technical Note
S-9.7.4.8-FunctionDescriptionInformation-2024-07-22-Draft Function Description Information – Standard
TN-9.7.4.8-FunctionDescriptionInformation-2024-07-22-Draft Function Description Information – Technical Note