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Safety Instructions


This page provides the safety instructions for safe use of DS-520AN.
To ensure safe and proper use, please read the following information carefully before using DS-520AN. The safety instructions include important information on safe handling of DS-520AN and on general safety issues.


< Indication of the warning >

  Warning "Warning" indicates the existence of a hazard that could result in death or serious injury if the safety instruction is not observed.
  Caution "Caution" indicates the existence of a hazard that could result in serious injury or material damage if the safety instruction is not observed.

< Indication of the symbol >

  Warning This symbol indicates the warning and notice.
( Example: "Danger of the electric shock" )
This symbol indicates the prohibited actions. 
( Example: "Disassembly is prohibited" )
This symbol indicates the necessary actions. 
( Example: "Remove the AC plug from an outlet" )


  Warning

"Warning" indicates the existence of a hazard that could result in death or serious injury if the safety instruction is not observed.


  • In the following cases, turn off the connected devices and unplug the AC plug of DS-520AN from a power outlet. Failure to follow these instructions may cause fire or an electrical shock.

  • When DS-520AN emits a strange smell, smoke or sound or becomes too hot to touch.
  • When foreign objects (metal, liquid, etc.) gets into DS-520AN.
  • When DS-520AN is dropped or the case is broken or cracked.
  • Do not disassemble or modify DS-520AN. It may cause fire, electrical shock or malfunction.

  • Do not disassemble or modify the AC adaptor that came with DS-520AN. It may cause fire, electrical shock or malfunction.

  • Do not cover up the vents on DS-520AN. The temperature inside may rise and cause fire or malfunction.

  • Do not place any objects on top of DS-520AN. It may cause fire, electrical shock or malfunction.

  • Do not place any objects on top of the AC adaptor or cover it with anything. Also, do not use the AC adaptor on a heat-retaining or humid material (e.g. carpet, sponge, cardboard, styrofoam board, etc). The temperature inside may rise and cause fire or malfunction.

  • Do not roll up or wrap the AC cord. It may cause fire or an electrical shock.

  • Do not plug or unplug the AC adaptor or any other cables with wet hands. It may cause an electrical shock or malfunction.

  • Keep the small parts out of reach of young children. If these are swallowed, consult a doctor immediately.

  • For use of the devices connected to DS-520AN, please follow all warnings, cautions and notices given by that manufacturer and carefully use them in a proper manner. Failure to follow these instructions may cause fire, electrical shock or malfunction.

  • Use the correct power voltage. Improper voltage may cause fire or an electrical shock.

  • If a ground wire is supplied with your device to use with, connect it to the ground terminal in order to prevent an electrical shock. Do not connect the ground wire to gas pipe, water pipe, lighting rod or telephone ground wire. It may cause malfunction.

  • Keep the cords and cables away from children. It may cause an electrical shock or serious injury.

  • Do not plug or unplug the AC adaptor or any other cables with wet hands. It may cause an electrical shock or malfunction.



  Caution

"Caution" indicates the existence of a hazard that could result in serious injury or material damage if the safety instruction is not observed.


  • Use the AC adaptor supplied with DS-520AN. Other AC adaptors may cause malfunction.

  • Do not place any objects on the cable or bend, twist, or pull it excessively.

  • Do not use or store DS-520AN under the following conditions. It may cause malfunction.

  • Locations subject to vibration or shock
  • Shaky, uneven or tilted surfaces
  • Locations exposed to direct sunlight
  • Humid or dusty places
  • Wet places (kitchen, bathroom, etc.)
  • Near a heater or stove
  • Locations subject to extreme changes in temperature
  • Near strong electromagnetic sources (magnet, radio, wireless device, etc.)
  • Do not pull on the cord to disconnect the plug from the power supply. The code may be broken, which could result in fire or an electrical shock.

  • Follow the law of each country when you discard DS-520AN.

  • Verify all codes or cables are plugged correctly before using DS-520AN.

  • When DS-520AN will not be used for a long time, unplug the power cables of DS-520AN and the other devices you are using with it.

  • When removing DS-520AN, disconnect the AC plugs of both DS-520AN and the other devices you are using with it.



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