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Allied Telesis AT-8000SSwitch

Switch Installation Guide
Mode LEDs
Selecting a particular mode determines what information is displayed on the port LED. For example, if the mode
selected is "COL", then the LED on each port indicates the collision status of that port.
The following figure illustrates the mode LEDs.

Figure 11: Mode LEDs

The mode LED indications are described in the following table:
24/48 Port Device Stacking LEDs
The following figure illustrates the stacking LEDs.

Figure 12: Stacking LEDs

Table 1: Mode LED Indications
LED Description LED Indication Description
COL Green Data collisions are occurring on the port.
Off No data collisions are occurring on the port.
SPD Green Link is established at 100Mbps.
Off Link is established in 10Mbps.
FDX Green A Full Duplex mode connection is established.
Off A Half Duplex mode connection is established.
ACT Green Port is transmitting and/or receiving data. This the default
mode.
Off No activity is established.