Ravel RE-900, Installation, Commissioning & Operating User Manual

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42 RE / DD / UM / RE-900 1.0-0
CHAPTER 5: Operating Instructions
Common & Power
Indications
Control Keys
Zone Indications
LCD
5.1 Switch Functions
The Keys, which are non-masked, are used for the general operation
of the Fire Alarm Panel. The Non-masked keys are Silence, Reset,
Ack., Evacuate and Enter keys.
SILENCE Key: This key is used in Fire / Fault Condition. To acknowledge
the external sounder / internal buzzer press this key. And the internal
buzzer tone is changed from continues tone to toggle tone for fire
condition.
RESET Key: This key is also used in only Fire Condition. The panel is reset
by pressing this key and during reset condition, all the detector input
voltages are cut off up to 3 seconds for Detectors and MCP’s, Then
voltages are put on to the loop.