Nortel Networks CVX 600 Manuel D’Utilisation
Checking the LEDs
296-1011-202 Rel. 5.0, Doc. Rev. 02.01
2-51
Chassis Connections
Optical DAC
The following figure shows the LEDs on the Optical DAC-SM:
LEDs on the Optical DAC-SM
The following table describes the LEDs on the Optical DAC-SM:
LED
State
Meaning
Power
Off Power
off
On (green)
Power on
Good
On (green)
Successful system boot: no errors
detected
detected
Off
No power: failure detected or on standby
Flashing green
Code loading during system boot
Fail
Off No
power
On (red)
Failure detected
Redun
Off
No power or no redundancy
On (green)
A working redundant configuration
LOF
Off
Normal
On (orange)
The SONET/SDH framing bytes for A1 or
A2 are wrong or corrupted.
A2 are wrong or corrupted.
LOS
Off
Normal
On (orange)
The designated port has a loss of carrier
condition, due to a faulty connection with
an SC connector on the receive side or a
physical break in the fiber.
condition, due to a faulty connection with
an SC connector on the receive side or a
physical break in the fiber.
Note:
There are no LEDs on the Optical DAC-LTMs.
STM1/OC3 x 2
Pwr
Good
F
ail
Redun
CVX-0144B
LOF
LOS
A1
B1
A2
B2