The JUMO the 1-port router module is a system component of the JUMO variTRON automation system. The 1-port module is primarily used together with a JUMO variTRON 300 central unit and provides the system bus output and the power supply for connecting the input and output modules on the side.

Compatible with JUMO variTRON as of system version 4
Connects the variTRON 300 central processing unit (available as of system version 6) to the modules
Alternatively, decentralized module assignment is also supported
First module on an additional DIN rail for connecting further modules
Galvanic isolation of the system bus connection
Supply of operating voltage
Quick wiring of operating voltage and system bus provided by simple module connection principle