Allied-telesis AT-DC2552XS Manuel d'utilisateur télécharger pdf (Page 23)

Stack Installation Guide for AT-2552XS L2 Data Center Switch

LEDs

Here are the descriptions of the switch’s LEDs.

SFP+ Slot LED Each SFP+ slot has one Link/Activity LED. The LED is triangular in shape.

The triangle LED pointing up shows the status of the upper SFP+ slot

while the triangle LED pointing down shows the status of the lower SFP+

slot. These SFP+ slot LEDs are shown in Figure 3.

Figure 3. SFP+ Slot LEDs

The SFP+ slot LEDs are described in Table 2.

Table 2. SFP+ Slot LED

LED State Description

Link/Activity

Solid green The SFP+ transceiver has established a

link to a network device.

Flashing

green

The SFP+ transceiver is receiving or

transmitting packets to a network device.

Off

The SFP+ slot is empty or the SFP+

transceiver has not established a link to a

network device.

LED Upper

L/A LED

Lower SFP+

Slot

Upper SFP+

Slot

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 83 84

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Allied-telesis AT-DC2552XS Manuel d'utilisateur Page 23