Check on the light curtain. Some already come with the connections for muting. Usually a set of horizontal beems that need to be broken in a specific way.It is also an option to run a remote mute signal for when the conv is running.
You also need to check if you need Bidirectional muting or just mute for product entering one way.There are many ways to set the mute function, but you need to check with the manual for your light curtain.