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physical description 2-4
LED Descriptions
The front panels of the FS517TS and FS524S Switches have LEDs that provide a
quick and accurate display of port speed, activity, collisions, duplex mode, as well as
activity between stacked switches.Table 2-1 summarizes the LEDs on the FS517TS
and FS524S Switches. A detailed description of the LEDs follows the table.
Table 2-1. Front Panel LEDs
Label Color Activity Description
Power Green On Power is supplied to the switch.
Off Power is disconnected.
100 Mbps Green On Port has made a 100 Mbps connection.
Green Off Port has made a 10 Mbps connection.
Activity / Collision Green Blinking Data transmission is occurring on the port.
Yellow Blinking Data collision is occurring on the port.The rate at
which this LED blinks corresponds to the number of
collisions. When a collision occurs, the connected
device pauses and transmits again after waiting a
specified time.
Stack Green On A valid link is established on the stacking port.
Off A link is not established on the stacking port.
Blinking Packet transmission or reception is occurring on
the port.
Link Green On Port has a valid link connection.
Off A valid link has not been established on the port.
FDX Green On Port is operating in full-duplex mode.
Off Port is operating in half-duplex mode.
17 ACT Green On Data transmission is occurring on the front panel
(FS517TS only) Gigabit copper port.
Off Data transmission is not occurring on the Gigabit
copper port.
1000M Green On Port has a valid 1,000 Mbps (1 Gbps) link connection
(Port 17 on the Blinking Data transmission is occurring on the port.
FS517TS only) Off A valid link has not been established on the port.
FDX Green On Port is in full-duplex mode
(Port 17 on the Off Port is not operating in full-duplex mode.
FS517TS only)