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III 

Important Safeguards and Warnings 

This section introduces content covering the proper handling of the Device, hazard prevention, and 
prevention of property damage. Read carefully before using the Device, comply with the guidelines 
when using it, and keep the manual safe for future reference. 

Operating Requirements 

 

  Make sure that the power supply of the device works properly before use. 

  Do not pull out the power cable of the device while it is powered on. 

  Only use the device within the rated power range. 

  Transport, use and store the device under allowed humidity and temperature conditions. 

  Prevent liquids from splashing or dripping on the device. Make sure that there are no objects 

filled with liquid on top of the device to avoid liquids flowing into it. 

  Do not disassemble the device. 

  Operating temperature range: –10 °C (14 °F) to +55 °C (+131 °F). 

  This is a class A product. In a domestic environment this might cause radio interference in which 

case the user may be required to take adequate measures. 

Installation Requirements 

 

  Connect the device to the adapter before power on. 

  Strictly abide by local electrical safety standards, and make sure that the voltage in the area is 

steady and conforms to the power requirements of the device. 

  Do not connect the device to more than one power supply. Otherwise, the device might become 

damaged. 

 

  Observe all safety procedures and wear required protective equipment provided for your use 

while working at heights. 

  Do not expose the device to direct sunlight or heat sources. 

  Do not install the device in humid, dusty or smoky places. 

  Install the device in a well-ventilated place, and do not block the ventilator of the device. 

  Make sure the device is in horizontal installation, and install the device on solid and flat surface to 

avoid falling down. 

  Use the power adapter or case power supply provided by the device manufacturer. 

  Voltage stabilizer and lightning protection device are optional according to power supply and 

surrounding environment. 

  The power supply must conform to the requirements of ES1 in IEC 62368-1 standard and be no 

higher than PS2. Note that the power supply requirements are subject to the device label. 

  Be sure to ground the device (cross section of copper wire: > 2.5 mm

2

; resistance to ground: ≤ 4 

Ω). 

  To ensure heat dissipation, the gap between the device and the surrounding area should not be 

less than 10 cm on the sides and 10 cm on top of the device. 

Summary of Contents for 28DH-PFS4218-16ET-190-V3

Page 1: ...PoE Switch 16 24 port Managed Desktop Switch Quick Start Guide V1 0 1...

Page 2: ...We are not liable for losses incurred due to operating the product in ways that are not in compliance with the manual The manual will be updated according to the latest laws and regulations of related...

Page 3: ...II using the device If there is any uncertainty or controversy we reserve the right of final explanation...

Page 4: ...ctrical safety standards and make sure that the voltage in the area is steady and conforms to the power requirements of the device Do not connect the device to more than one power supply Otherwise the...

Page 5: ...ames such as a lit candle on the device When installing the device make sure the power plug and appliance coupler are easy to reach to cut off the power Maintenance Requirements Power off the device b...

Page 6: ...2 2 1 Front Panel 2 2 2 Rear Panel 3 3 Installation 4 4 Wiring 5 4 1 Connecting GND 5 4 2 Connecting Power Cord 5 4 3 Connecting Ethernet Port 5 4 4 Connecting SFP Ethernet Port 6 4 5 Connecting PoE E...

Page 7: ...evice is applicable for use in different scenarios including homes offices small malls and on server farms 1 2 Features 16 24 100 Mbps PoE Ethernet ports uplink ports support gigabit optical ports or...

Page 8: ...tton Press and hold it for more than 5 seconds and release after the panel status indicators all turn on to restore the device to its default settings 4 Console port 5 PoE output power indicators Soli...

Page 9: ...ollowing figure is for reference only and might differ from the actual device Figure 2 2 Rear Panel Table 2 2 Description of the rear panel No Description 1 Power switch 2 Power port supports 100 240...

Page 10: ...k mount Step 1 Attach the mounting bracket to the Device side panel one on each side and secure it with the screws provided with the rack Figure 3 1 Install bracket Step 2 Attach the Device to the rac...

Page 11: ...1 Connect GND 4 2 Connecting Power Cord Before connecting the power cord make sure that the Device is securely grounded Step 1 Connect one end of the power cord to the power jack of the Device Step 2...

Page 12: ...tatic wrist band and confirm that the antistatic wrist band is in good contact with your skin and the Device is reliably grounded Step 2 Turn up the handle of the SFP optical module vertically and hol...

Page 13: ...an directly connect this port to the Device PoE Ethernet port through the network cable to achieve synchronized network connection and power supply The maximum distance between the Device and the term...

Page 14: ...Web No initial password user defined during initialization iLinksView lt_91_il_02_nmp When using iLinksView for device management ensure that the username and password of the Device matches that of iL...

Page 15: ...xample place the device in a special computer room and cabinet and implement well done access control permission and key management to prevent unauthorized personnel from carrying out physical contact...

Page 16: ...smission efficiency 12 Secure Auditing Check online users we suggest that you check online users regularly to see if the device is logged in without authorization Check device log By viewing the logs...

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