This entrance relay unit is designed to allow the residence to communicate and control the opening of multiple entrances.
The BPT Entrance Selector is an entrance relay unit designed to allow the residence to communicate and control the opening of multiple entrances.
When the SI/200 unit is used in a two entrance system and a user makes a call from the first entrance, the switch relay transfer the call from that panel to the flat’s audio handset being called.
This BPT entrance relay unit can be used in an audio entry installation with a maximum of two entrances. An additional unit will be required for every other entrance.
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