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22.The System Fault Condition
In the event of a complete system failure, a system fault will be indicated.
The panel responds as follows:
•
The SYSTEM FAULT and GENERAL FAULT LED illuminate. All other
LEDs will be extinguished.
•
The internal buzzer sounds continuously.
•
The LCD backlight switches off. The text will display the details of the last
condition. This should be ignored.
•
The local alarm circuits will be silenced if they are active.
•
All loop devices will remain in the condition they were in when the fault
occurred. Some sounders may thus remain active.
Warning: The system is completely inactive.
22.1.1User Actions
•
Call your service engineer immediately.
22.1.2Service Engineer Actions
•
Open the outer panel door.
•
Operate the SYSTEM FAULT RESET switch on the motherboard. This is
identified in Figure 5
•
Operate the PROCESSOR RESET switch on the motherboard. This is
identified in Figure 5
•
Observe that the panel restarts and displays the POWER UP DELAY message
on the LCD.
•
If the panel does not restart properly then the panel requires replacement.
22.2Quiescent Condition
In its normal or quiescent condition the supply healthy LED will be illuminated to
indicate that mains power is present on the system. The LCD will display the time and
the company name.
If the delay is active the delay LED will be illuminated. There will be no other LEDs
illuminated
22.3Access Mode
When the access controls key is inserted and turned to the ON position the LCD
backlight will be switched on.
Page 45 of 111
02/10/03
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