Self Diagnosis - AOpen ISDN SOHO Router User Manual

11.8 Self Diagnosis

Power On Self Diagnosis
The router is installed with power-on self-diagnostic functions. After the power is switched
on, the router will perform the following self-test diagnostics.
Item
ROM
RAM
after execute the previous self-diagnostic the LED will be lit in following sequences
PW LED will be always light when power is on
ER LED on then off
ER flash two times
DA LED is lit during sending or receiving data with PC
Do not turn off power during self-diagnosis.
If a problem occurs during self-diagnosis, the ER LED will keep flashing
throughout the test.
ISDN Router Manual V.1.1
Description
inspect ROM's to CHECK ROM size
inspect RAM's read/write operations
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