TEMA TELECOMUNICAZIONI SRL
Doorphone AA-514
MAS-AA514-REV03EN
Page 34 of 56
8.5.5. CASE 5: drive of an electric lock and an opening buzzer
Case expected to automatically repeat the activation of the relay 1 (typically door opener) also on relay2 so it is
possible to connect to the second relay a device to signal the successful opening of the gate. For example, to a
warehouse where workers assume responsibility to pay attention to an adequate buzzer that indicates the effective
opening of the passage. The device drived by AA-514 relay2 provides to notify (for the time of activation of the
relay1) that a person is entered in the warehouse. Automatically, every time a gate is opened, is carried out an alert
for the warehouse employees. TB3 is designed for use only contact relay2, the system is powered on TB4, on TB1
connects the electric lock and on TB2 the telephone line.
In this example, the correct values of the parameters involved in the management of the relays could be:
•
parameter 138 = 0
the relay1 is activated by telephone code
•
parameter 144 = 3
the relay2 follows the activation of the relay 1
•
parameter 137 = 2
pulse time opening of Driveway gate, relay1, in seconds (relay2 same time)
Telephone
line
Contact of relay 2 of
AA-514 to connect to the
signaling system (connect
together the point 3 and 4)
Gate
electric lock
Power supply
12Vac
To the
signaling
system
