Bosch PAVIRO PVA-15CST - EXT Interface

PAVIRO Call Stations Connection | en 29
Bosch Security Systems 2018.04 | 04 | F01U306899
MIC
MIC_VCC
MIC_GND
Figure6.5: Assignment of the MIC plug
6.4 EXT interface
This socket is primarily used to connect a call station extension.
To do so, connect the call station extension to the EXT socket of
the call station via the connecting cable provided.