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15
Understanding Fiber Module LEDs
The LEDs on the Fiber Module provide information about the
module’s configuration and status.
Duplex LEDs
You can determine the Fiber Module’s duplex configuration and status
from the duplex LEDs. Use the Change duplex button to cycle among
duplex modes.
LED Status Meaning
Auto-negotiate Solid Module is set to auto-negotiate the duplex mode.
Blinking Module is being forced to cycle among auto-negotiate,
half-duplex, and full-duplex.
Off Duplex mode has been forced to half or full-duplex.
Full-duplex Solid Module is in full-duplex mode.
Blinking Module is being forced to cycle among auto-negotiate,
half-duplex, and full-duplex.
Off Module is not in full-duplex mode.
Half-duplex Solid Module is in half-duplex mode.
Blinking Module is being forced to cycle among auto-negotiate,
half-duplex, and full-duplex.
Off Module is not in half-duplex mode.
To change the duplex mode
This example forces the duplex mode to full-duplex:
1 Long press the Change duplex button. The Auto-negotiate LED
blinks.
2 Short press the Change duplex button. The Full-duplex LED blinks.
3 Long press the Change duplex button. The Full-duplex LED stays
on solid.
NOTE
A long press is held for 2
seconds or more.
A short press is held for less
than 2 seconds.
Fiber Module
Auto-negotiate
Full-duplex
Half-duplex
Change
duplex
Xmt Link
Rcv Coll
TX RX