04 Introduction
LED Indication
1000M
10/100/1000Mbps
Green On: Running at 1000Mbps, but no activity.
Green Flashing: Running at 1000Mbps and is transmitting or receiving data.
Yellow On: Running at 10/100Mbps, but no activity.
Yellow Flashing: Running at 10/100Mbps and is transmitting or receiving data.
Off: No device is linked to the corresponding port.
Note: 1000M for T1500-28TC. 10/100/1000Mbps for 1-24 ports of T1600G-28TS
and 1-48 ports of T1600G-52TS (TL-SG2452).
100Base-FX
1000Base-X
Green On: A 1000Mbps device is connected to the corresponding port but no
activity.
Green Flashing: A 1000Mbps device is linked to the corresponding port and data is
being transmitted or received.
Yellow On: A 10/100Mbps device is connected to the corresponding port but no
activity.
Yellow Flashing: A 10/100Mbps device is linked to the corresponding port and is
transmitting or receiving data.
Off: No device is linked to the corresponding port.
Note: 1000Base-X for 25-28 ports of T1600G-28TS. 100Base-FX/1000Base-X for
49-52 ports of T1600G-52TS (TL-SG2452).
49 -52 ports of T1600G-52TS (TL-SG2452) doesn't support 10Mbps devices.
25-28
Lick/Act
Green On: Running at 10Gbps, but no activity.
Green Flashing: Running at 10Gbps and is transmitting or receiving data.
Yellow On: Running at 1000Mbps, but no activity.
Yellow Flashing: Running at 1000Mbps and is transmitting or receiving data.
Off: No device is linked to the corresponding port.
Note: 25-28 for T1700G-28TQ. Link/Act for 13-16 ports of T1700X-16TS.
Link/Act
Green On: Running at 10Gbps, but no activity.
Green Flashing: Running at 10Gbps and is transmitting or receiving data.
Yellow On: Running at 100/1000Mbps, but no activity.
Yellow Flashing: Running at 100/1000Mbps and is transmitting or receiving data.
Off: No device is linked to the corresponding port.
Note: Only for 1-12 ports of T1700X-16TS.
Master
On: The switch works as master in the stack system, or does not join any stack
system.
Off: The switch works as stack member in the stack system.
Note: Only for T1700G-28TQ.
Fan
Green: All the fans work properly.
Yellow: Not all the fans work properly.
Off: The switch is working abnormally.
Note: Only for T1700X-16TS.
T1500-28PCT (TL-SL2428P) / T1500G-10MPS / T1600G-28PS / T1600G-52PS (TL-SG2452P) has an
LED mode switch button which is used to switch the LED status indication. When the Speed LED is
on, the port LED is indicating the data transmission rate. When the PoE LED is on, the port LED is
indicating the power supply status. By default the Speed LED is on. Pressing the mode switch button,
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