Bosch DCN Next Generation - Page 143

Signal levels for telephone and intercom contacts:
– no call: < 1 V(DC.
– call: > 3 V(DC), max. 24 V(DC).
– Galvanic separated.
Conference System Connection | en 143
Bosch Security Systems B.V. Operation Manual 2013.11 | V2.0 | DCN-NG_OM_V4.x