Specifications

Hardware Reference 39
C613-03020-00 REV K
Table: 21 LEDs on the AT-A42/GBIC Uplink Module
LED State Function
L/A
Link/Activity
Green A 1000 Mbps link is open
Flashing green 1000 Mbps activity is occurring
Flashing amber
(and GBIC LED is
Off)
A TX fault has occurred
Off No link is present
GBIC Green The switch has recognised the GBIC, the
GBIC is a valid model
Green
(and L/A LED is
flashing GREEN)
The port is operating at full-duplex
Amber
(and L/A LED is
OFF)
The switch has not recognised the GBIC, the
GBIC is not a valid model
Amber
(and L/A LED is
flashing GREEN)
The port is operating at half-duplex
Flashing amber
(and L/A LED is
flashing GREEN)
Collisions are occurring
Off No GBIC is installed, or a TX fault has
occurred
Both LEDs Slow alternate
flashing of L/A and
GBIC LED, amber
The switch has not recognised the GBIC, or
the GBIC is not a valid model