Aux * key 2GIG-345

What can the Aux * key be used for on the keyfob?

I’ve searched and cannot find anything specific.

Thanks in advance.

The aux key on the Key2-345 has two uses. It was used with the 2GIG GDR1 garage receiver, and it can be programmed to trip the open collector in the 2GIG panel.

Here is a video about a possible use of the open collector control.