D-Link DE-81 6TP, DE81 2TP+, DE-824TP manual LED Indicators, Jabber LED, Collision LED

receptacle on the rear panel of the Ethernet Hub. Plug the other end of the power cord into an electric service outlet. Turn on power to the Ethernet Hub by switching its rear-panel power switch to the on position.

LED Indicators

LED indicators are located on the front panel of the Ethernet Hub.

Jabber LED

One Jabber LED for all ports. This LED flashes red when the Ethernet Hub detects a data packet that is defective (exceeds allow- able length). This kind of error will ordinarily be managed by the offending Ethernet adapter itself, in which case the Jabber LED will re- turn to its normal off (dark) state.

Collision LED

One Collision LED for all ports. A collision occurs when two stations within a collision domain attempt to transmit at the same time. Intermittent flashing yellow of the Collision LED is normal; the contending adapters resolve each collision by means of a wait-

then-retransmit algorithm. Fre-quency of collisions is an indicator of heavy traffic on the network.

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