These LED indicators are lighted up when there is a secure connection (or link) to 1000Mbps Gigabit Ethernet device at the desired port.
z100Mbps
These LED indicators are lighted up when there is a secure connection (or link) to 100Mbps Fast Ethernet device at the desired port.
When the connection (or link) is 10Mbps, both of 1000Mbps and 100Mbps LED indicators are off.
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