Dahua RAD-150, User And Installation Manual

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5.2.2- Fault warning
When a fault occurs and there is no alarm, the buzzer is activated intermittently.
5.2.3- System failure warning
In this situation, the internal buzzer is activated continuously.
5.3- Control keys
5.3.1- Activate sounders (A)
The pressing of this key causes the immediate activation of the sounders. This control
overrides any sounder delay that has been programmed.
5.3.2- Silence sounders (B)
Pressing this button disables the sounders when triggered. If a new alarm occurs the
sounders are activated. After eliminating the alarm by pressing the reset button will
return to standby.
5.3.3- Silence System (C)
This key silences the buzzers when it is active (the buzzer of repeater and all buzzer
of analogue control panel connected to the network), and the silence buzzer indicator
lights. When the buzzer is re-activated, the silence buzzer indicator turns off.
5.3.4- Reset (D)
Pressing this button causes the system to return to the normal condition.
5.3.5- Keypad locking key (E)
When the key is in the closed position, the keypad is locked and cannot be used. For
pressing buttons to take effect, you must put the key in the open position.