Written by: A.C. Amended by GG
Checked by: JBJ
Document Number: USDISC Rev.: 3
Page 7 of 47
19/07/2004
2.5 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.
User Actions
•
Determine the area affected by the fault and decide whether special action
(such as fire patrols) are needed in that area.
•
Call your service engineer immediately.
•
Record the event in the system log book.
2.6 Quiescent 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
2.7 Access Mode
When the access controls key is inserted and turned to the ON position the LCD
backlight will be switched on.
