Communication Status Indicators - Allied Telesis AT-2450 Installation Manual

Hazardous light emissions may exist in fiber optic systems.
Severe eye damage may result if precautions are not taken.
Never look into a transmitting fiber optic device, transceiver,
repeater, or cable.
Maximum segment length is 1000 meters (3279 ft.) for FOIRL
and 2000 meters (6558 ft.) for 10BASE-FL. In a 10BASE-FL or
FOIRL segment, the cables connect the transmit receptacle at
one end of the segment to the receive receptacle at the other end
and vice versa. Be sure to align the key on the cable connector
with the keyway on the adapter card receptacle when attaching
the cable. Forcing cable insertion can cause receptacle or
connector damage.

Communication Status Indicators

Table 6 shows the functions of the four status indicators located
below the RJ45 receptacle.
Table 6: AT-2450 PCI Ethernet Adapter Card Status Indicators
LED Color Label
Green TX
Yellow RX
Green LNK
Yellow COL
WARNING
Indicates
Transmitting packet
Receiving packet
Valid receive link signal
Collision detected
Cabling
Used by
All media
All media
10BASE-T 10BASE-FL
FOIRL
All media
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