Allied Telesis AT FH824U AT-FH824U - Manual (Page 23)

AT-FH800 Series Installation Guide
13
Verifying Port
Status
Figure 10 depicts Port LEDs. Check each connection by comparing the port status
LEDs with Table 1.
Figure 10 Port LEDs
Table 1 lists and defines the hub’s LEDs.
Table 1 LEDs
LED State Indication
Power ON Hub is receiving power
Switch OFF Switch Module is active
Flashing Switch Module is not installed or is in slave mode
Segment LEDs (10 Mbps/100 Mbps)
Activity Flashing Traffic exists on the segment
Collision Flashing Two or more devices attempted to transmit data at
the same time (Normal situation under ethernet
CSMA/CD)
Ports LEDs (1-12/24) Yellow = 10 Mbps, Green = 100 Mbps
Link/Partition ON Port has established a valid network connection
Flashing Port partitioned due to abnormal network condition
Media Module LEDs
Full/Half ON Port is set to full-duplex
Collision Flashing Two or more devices attempted to transmit data at
the same time (Normal situation under ethernet
CSMA/CD)
Activity Flashing Port is passing traffic; blinking proportional to traffic
Link ON A valid link has been established on this port
100M ON Port is operating at 100 Mbps
Agent Module LEDs
Active ON Agent Module is active
Flashing Agent Module is running power-on self-test