Allied-telesis AT-8550SP User Manual download pdf (Page 35)

AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide

are defined in Table 7.

Note

The AT-8516F/SC switch does not have an LED Mode Select

button.

GBIC and SFP

Expansion Slot

LEDs

The GBIC and SFP slots on the AT-8550GB and AT-8550SP switches,

respectively, have two LEDs. The LEDs display the operating status of the

fiber optic port. Use the Mode Select button on the switch to toggle the

status information displayed by the MODE LED. The LEDs are defined in

Table 8.

Table 7. LEDs for the Fiber Optic Ports on the AT-8516F/SC Switch

LED State Description

L/A OFF Indicates no link has been established between

the port and the end node.

Green Indicates a valid link exists between the port

and the end node.

Flashing

Green

Indicates that the port is transmitting and/or

receiving data packets.

D/C Green Indicates that the port is operating in full-duplex

mode.

Amber Indicates that the port is operating in half-duplex

mode.

Flashing

Amber

Indicates that data collisions are occurring on

the port.

Table 8. LEDs for the Optional GBIC and SFP Ports on an AT-8550GB and

AT-8550SP Switches

LED State Description

LINK OFF Indicates that there is no link between the

port and the end node.

Solid

Green

Indicates a valid link has been established

between the port and the end node.

Mode - COL OFF Indicates that no data collisions are

occurring on the port.

Flashing

Green

Indicates that data collisions are occurring

on the port.

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 89 90

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Allied-telesis AT-8550SP User Manual Page 35

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