Esser 8000C - CPU Failure and Disconnection States

Fire Alarm Computer 8000C / M
Page 17
3.3 Trouble
The common display TROUBLE (yellow LED) lights and the control panel buzzer sounds
intermittently.
♦ At least one control panel function has failed!
♦ A message is shown in the display describing the failure/cause.
♦ The yellow LED of the zone in which the malfunction has possibly occurred blinks on the single
zone indicator units (optional).
!
Detector zones/relay loops or inputs/outputs will not signal an alarm in the case of an
event. Inform customer/maintenance service!
3.4 CPU failure
The fire alarm control panel is only partially operative!
♦ No messages on the alphanumeric display.
♦ No evaluation of information.
♦ No activation of external equipment such as alarm sounders.
♦ The master box and the Master box (MB) LED and Notify fire department will be activated
even in the control panel CPU failure mode.
!
A comprehensive operation of the fire alarm control panel is no longer provided. Call
customer/maintenance service immediately!
Operating status of the fire alarm control panel