---
title: RADIUS Comm Port
description: The Comm ports are filtered multicast ports. It's meant to plug in a wifi router to communicate with the entire network. So, using an example, in an array of 6x RSX212L, the user would daisy chain th
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# RADIUS Comm Port
The Comm ports are filtered multicast ports. It's meant to plug in a wifi router to communicate with the entire network.
So, using an example, in an array of 6x RSX212L, the user would daisy chain the array using the DANTE A/B ports then have one homerun (Ethernet/Ethercon cable) from the array to a network switch.
To incorporate Mosaic, plug the router into one of the comm ports on one of the speakers. If a second array of 6x RSX212L was daisy chained through the DANTE ports in the same way as the previous, the router could communicate with this as well.
The DANTE ports are running Mosaic control as well as networked audio. The comm port is the same but filtering out multicast, meant strictly to be used for Mosaic control.
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