2-2b. CCTV with relay - Event Handler (solution)

System configuration

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.

Program DAK 1 of the Elevator station to "I 400"

Program DAK 1 of the Entrance station to "I 400"

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By setting Call Priority Setup = Low, the call from the Elevator will be forced to Private ringing mode, regardless of the Open/Private status of the Main Guard

By setting Call Priority Setup = Low, the call from the Entrance will be forced to Private ringing mode, regardless of the Open/Private status of the Main Guard

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:

Private Ringing mode ON at 400 from 302 triggers 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:

Private Ringing mode ON at 400 from 104 triggers RCO 6

When the Elevator ends the conversation (or the ringing times out), the station returns to idle mode. The event 04 - Station in Use will go OFF when the station returns to idle:

Turn off the RCO 5 when Elevator station 104 returns to idle

Turn off the RCO 6 when Entrance station 302 returns to idle

Relay control. Alternative 2

• 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:

Private Ringing mode ON at 400 from 302 triggers 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:

Private Ringing mode ON at 400 from 104 triggers RCO 6

When the Elevator ends the conversation (or the ringing times out), the station returns to idle mode. The event 04 - Station in Use will go OFF when the station returns to idle:

Turn off the RCO 5 when Elevator station 104 returns to idle

Turn off the RCO 6 when Entrance station 302 returns to idle

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• 2-2b. CCTV with relay - Event Handler (practice)