Door release relay selectively release one or more doors with the LEF system (LEF-3L, plus all 5- and 10-call LEF masters).
- Each door to be released requires a separate RY-PA
- Also used for LDF, NDR, TB-M/D systems (SOP)
Connect an electric door strike to the VC-M system. EXTERNAL SIGNALING Activate a doorbell or buzzer when a call is received at a VC-K handset in a VC-M system.