Dual-Speed Ethernet Hub User's Guide ALH-616ds

There are three groups of LED indicators in the front panel:
• System status indicators: Indicate the overall system status of the hub.
It includes system PWR, Fan Err., Master, Slave indicators, Collision of
10 and 100M, and Bridge function
• Network status indicators: Indicate working status of each connection port,
It includes port 100/10M, LNK/ACT
• Network utilization indicators: Indicate the bandwidth utilization of 10 and
100Mbps. It includes 5, 15, 25, 35, 55+ scales indicators
2.4.2 System status indicators
Figure 2-14 System Status Indicators
Master/Slave: Indicates if the system is stacked to be the Master or Slave
hub.
PWR: Indicates if the system is provided with power.
FAN Err.: Indicates if the cooling FAN is dead.
Color On/Off Indication
Green On System Powered
Off No Power
Color On/Off Indication
Orange On FAN is dead
Off Normal
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