Difference between revisions of "2-2b. CCTV with relay - Event Handler (solution)"
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− | '''Relay control''': | + | '''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.'' | * ''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).'' | * ''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).'' |
Revision as of 16:15, 27 February 2013
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).