JMRI® connects to...

Digitrax LocoNet®

Supported Hardware

Devices, command stations, networks, and protocols:


By the community of


JMRI tools for working with your layout:

Layout Automation

Use JMRI to automate parts of your layout and operations:

JMRI Help:
Contents/ Index
Glossary/ FAQ

Donate to JMRI Donate to

Hardware Support: Connecting Multiple Computers to LocoNet® via LbServer

This page describes how to configure multiple JMRI nodes to connect as clients to a single LocoNetOverTCP LbServer, which in turn is connected to the layout.

This connection, called LocoNetOverTCP, uses a separate non-Java server process, LbServer, that communicates using plain ASCII String messages over TCP/IP sockets, allowing non-Java nodes to also share the one LocoBuffer.

Setup for JMRI LocoNetOverTCP

One computer runs the LbServer program that connects to the LocoBuffer and acts as a Server to all the JMRI Client computers. Configure the JMRI Client computers to connect to the LbServer as follows:


LocoNet® is a registered trademark of Digitrax, Inc.