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Checking the LEDs
296-1011-202 Rel. 5.0, Doc. Rev. 02.01 2-49
Chassis Connections
LEDs on the Optical SCC-II-SM
The following table describes the LEDs on the Optical SCC-II-SM:
LED State Meaning
Power Off Power off
On (green) Power on
Good On (green) Successful system boot: no errors
detected
Off No power: failure detected or on standby
Flashing green Code loading during system boot
Failed Off No power
On (red) Failure detected
Redun Off No power or no redundancy
On (green) A working redundant configuration
Sonet On (green)
On (red)
Normal operating condition
Sonet/SDH alarm condition
ATM Off
On (red)
On (green)
Not initialized
Initialized, but not operational
Operational
Prot Off
On (amber)
Automatic protection switching is either not
configured, or if configured, the protected
link is inactive
Protected link is active
Prim Off
On (green)
Automatic protection switching is not
configured, or if configured, primary link is
inactive
Primary link is active
ATM1 Off
On (green)
Physical link connection not detected
Physical link connection detected
ATM2 Off
On (green)
Physical link connection not detected
Physical link connection detected
10/100 Enet
1, 2, 3
Off No link present
On (green) Online: normal operating condition
On (red) Alarm condition