2-2b. CCTV with relay - Event Handler (solution)
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Solution
Call buttons:
- Pressing the call button at the Entrance or in the Elevator should generate a call in private ringing mode to the Main Guard.
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Relay control. Alternative 1:
- A relay output to the CCTV system should be activated when the private ringing starts. There is one relay for each substation. Use the outputs 5 and 6.
- The relay should stay activate until the call is accepted and the conversation is cancelled. (If the call is not answered, the relay must drop when the ringing times out).
When the Main Guard starts ringing (The Private Ringing mode event goes ON), and the caller is station 302, turn on RCO 5:
When the Main Guard starts ringing (The Private Ringing mode event goes ON), and the caller is station 104, turn on RCO 6: