Hardware reference guide
Quantum Field Bus Modules
35013379 02 October 2007 245
LED Indicators 
and Descriptions 
for NOA62200
The following figure shows the NOA62200 LED indicators. 
The following table shows the NOA62200 LED descriptions.
LED Descriptions
LEDs Color Status Meaning
R Green On Ready. The switch-on routine was 
completed successfully. The firmware 
is running correctly and the module is 
ready for operations. RAM and 
checksum are ok.
Flashing No firmware; or firmware is being 
loaded.
Off Module error.
Active Green On The communication with the TSX 
Quantum CPU is active.
F Red On Fault. An error has occurred on the 
INTERBUS.
IB-S Run Green On The INTERBUS is functioning, normal 
data transfer.
Flashing 
cyclically.
The INTERBUS is ready.
No cyclic 
flashing.
No INTERBUS configuration (error 
message).
Slave Red On An INTERBUS node is indicating a 
module error.
140
NOA 622 00
INTERBUS Master
R
Active
F
IBS-RUN
Slave
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