Honeywell Esser 2 Series Operation And Installation Instruction page 69

Ground trouble (yellow LED)
On When an earth fault in the communication wiring or the supply wiring has been
recognized, e.g. due to faulty insulation.
Trouble (yellow LED)
On When the input >Trouble, extinguishing system< is activated.
An extinguishing system connected to this input indicates a failure. Cause for this
message are e.g. triggered weight contacts or other sensors for monitoring the fire
extinguishing system.
Blocking (yellow LED)
On When the input >Blocking< is activated.
A mechanical switch contact (e.g. cut off cock / faucet) for monitoring deluge / release flow
indicates a failure.
Call maintenance-service immediately in the case of failure messages and in the CPU-failure
mode of the Extinguishing Control Computer.
When a fault is present or in the CPU-failure mode, the Extinguishing Control Computer is
operational only with restrictions. Comprehensive functioning is no longer provided. Call
maintenance-service immediately.
FB 798352 / 11.07
Extinguishing Control Computer 8010 - Series 2
69