Volt Trigger; Infrared - a-them AVM 90 Operating Manual

4.4 12 VOLT TRIGGER

If another system component has a trigger input, the MRX/AVM can activate it (as long as it requires 40mA or less).
Connect the MRX/AVM's trigger output using a cable with 3.5mm mini-plugs. The MRX/AVM provides flexible trigger
options. Through the setup menu, you can specify the conditions for enabling triggers.

4.5 INFRARED

An external IR receiver allows the use of the remote control from another location in your home – connect the MRX/
AVM from an external IR hub to the IR IN jack. Most standard IR repeater kits are compatible, but to avoid problems,
test compatibility before installing permanently.