Difference between revisions of "2-2b. CCTV with relay - Event Handler (practice)"
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| − | + | [[File:2-2b exercise.PNG|left|thumb|500px|System configuration]] | |
| + | <br style="clear:both;" /> | ||
| + | === Exercise === | ||
| + | |||
| + | '''Call buttons''': | ||
| + | * Pressing the call button at the Entrance or at the SOS Point should generate a call in private ringing mode to the Control Room. | ||
| + | |||
| + | '''Relay control''': | ||
| + | * 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). | ||
| + | |||
| + | |||
| + | <br><br><br><br> | ||
| + | |||
| + | ---- | ||
| + | |||
| + | ===Related articles === | ||
| + | * [[2-2b. CCTV with relay - Event Handler (solution)]] | ||
[[Category: AlphaCom practice]] | [[Category: AlphaCom practice]] | ||
Latest revision as of 14:10, 20 September 2013
Exercise
Call buttons:
- Pressing the call button at the Entrance or at the SOS Point should generate a call in private ringing mode to the Control Room.
Relay control:
- 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).