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LED OPERATION
The IE-ModeConverter has four status
LED indicators. Each LED is dual color
and has three states: Off, red, or
green. A loss of signal on one SFP
causes the TX of the other SFP to turn
Off. This action does not activate the
red TX Fault LED.
LED
PWR
SD I
SD 2
MSA LEDs
* To help in troubleshooting, the Link Loss (LL) feature is always ON. That is, if a LOS is detected on an
incoming SFP port, the optical transmitter on the other SFP port is turned OFF. This provides a Link Loss
carry forward function to alert the device downstream of the existing problem. This function is "ON" in
both directions at the same time. The LL function is inhibited if either SFP is not installed.
Red
Card does not pass the self-test.
LED transmitter has an active fault.
One or both SFPs are not installed or
not detected. The TX inhibit must not
be active if a SFP is missing.* Or, both
SFPs are installed, but their speed
settings are different. This condition
disables both SFPs.
IE-ModeConverter
COLOR OR STATE
Off
Unit does not
Power is applied to the card.
have power.
All internal self-test functions
must pass before the PWR
LED is green.
No active fault
Valid signal is detected by the
on transmitter.
SFP and LED transmitter is not
in fault.
LOS indication
on receiver.
N/A
Indicates that both SFPs with
the same speed are securely
installed.
8
- SFP
Green
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