﻿In normal operation, the coupler filters telegrams based on its filter table and its position within the bus topology. During commissioning and diagnostic activities, it may be useful for the coupler to temporarily forward all telegrams with group addresses and/or physical addresses.

This forwarding can be activated using the "Pass IA" and "Pass GA" buttons.

On the "Forwarding of telegrams" page, the "Duration of forwarding" parameter can be used to specify that the coupler automatically switches back to normal filtering after a configurable time. 

If the button is pressed again within this time, the coupler immediately deactivates the forwarding.
