TP-LINK TL-SG3452P 48xGE/PoE - Инструкция по эксплуатации - Страница 23

JetStream L2/L2+ Managed Switch

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Connection

3.5  Power On

Plug the female connector of the provided power cord into the power socket of the device and plug 

the positive connector into a power outlet as the following figure shows. Make sure that the voltage 

of the power supply meets the requirement of the input voltage (100-240 V~ 50/60 Hz). 

Figure 3-5 

Connecting to Power Supply

Note: 

1.  The  figure  is  to  illustrate  the  application  and  principle.  The  provided  plug  and  the  socket  in 

your region may differ from the figures above.

2. For TL-SG3428X-UPS, you can connect an external 12 V DC lead-acid battery as a redundant 

power supply for the switch. The minimum required capacity is 4.5 AH. Battery is automatically 

used  to  supply  power  when  the  AC  power  is  turned  off.  When  the  AC  power  is  working,  it  will 

automatically charge the battery.

3.6  Initialization

After the device is powered on, it begins the Power-On Self-Test. A series of tests  run automatically 

to ensure the device functions properly. During this time, its LED indicators will respond in the 

following order:

1.  The PWR LED indicator lights on all the time. The SYS LED and the LED indicators of all the ports 

keep off.

2.  After about one minute, the SYS LED and LED indicators of all the ports will flash momentarily and 

then turn off. 

3.  Several seconds later, the SYS LED indicator will flash, which represents a successful initialization.