
Name  Status  Indication 
On  A device is linked to the corresponding port and running at 1000Mbps.
1000Mbps 
Off  A 10/100Mbps device or no device is linked to the corresponding port.
On  A device is linked to the corresponding port and running properly. 
Flashing  Data is being transmitted or received. 
Link/Act 
Off  No device is linked to the corresponding port. 
 LEDs ( for TL-SG5412F) 
Name  Status   Indication 
On  The switch is powered on. 
PWR 
Off/Flashing  The switch is powered off or power supply is abnormal. 
Flashing  The switch works properly. 
SYS 
On/Off  The switch works improperly. 
On  A 1000Mbps device is linked to the corresponding port and there is no 
activity. 
Green 
Flashing  A 1000Mbps device is linked to the corresponding port and data is 
being transmitted or received. 
On  A 10/100Mbps device is linked to the corresponding port and there is 
no activity. 
10/100/1000Mbps 
BASE-T 
Yell ow 
Flashing  A 10/100Mbps device is linked to the corresponding port and data is 
being transmitted or received. 
On  A 1000Mbps device is linked to the corresponding port. 
1000Mbps 
Off  No device or a 10/100Mbps device is linked to the corresponding port. 
On  A 1000Mbps device is linked to the corresponding port but there is no 
activity. 
Flashing  A 1000Mbps device is linked to the corresponding port and data is 
being transmitted or received. 
Link/Act 
Off  No device or a 10/100Mbps device is linked to the corresponding port. 
The rear panel of TL-SG5428/TL-SG5412F features a power socket and a Grounding Terminal 
(marked with ). 
Figure 2-3 Rear Panel 
 Grounding Terminal: TL-SG5428/TL-SG5412F already comes with Lightning Protection 
Mechanism. You can also ground the switch through the PE (Protecting Earth) cable of AC cord 
or with Ground Cable. For detail information, please refer to Installation Guide. 
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