1.不要貪圖便宜：市場上POE交換機品牌多不勝數，價格和質量差別很大。選擇POE交換機千萬別盯着價錢，質量才是選擇POE交換機的重點。若POE交換機質量差，可能在後期使用中會出現各種問題。
2.盡量遠離非標：標準的POE交換機能自動連接網絡設備，保障受電設備的安全。相反，非標的PoE交換機存在安全隱患，使用時要注意供電電壓和受電設備電壓一定要一致。
3.選擇合適的型號：POE交換機的型號和端口都比較多，使用時要注意選擇合適的型號。通常，POE交換機端口傳輸速率使用率在40~60%左右，另外，諸於帶紅外燈這樣的監控攝像頭，一定要考慮紅外燈的功率。
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What should I pay attention to when choosing a POE switch?
1. Don't be greedy for cheap: There are many brands of POE switches on the market, and the price and quality are very different. Choose a POE switch and don't stare at the price. Quality is the key to choosing a POE switch. If the quality of the POE switch is poor, various problems may occur in the later use.
2. Try to stay away from non-standards: Standard POE switches can automatically connect to network devices to ensure the safety of powered devices. On the contrary, non-standard PoE switches have security risks. Pay attention to the supply voltage and the voltage of the powered device must be consistent.
3. Choose the appropriate model: POE switch models and ports are more, you should pay attention to choose the appropriate model when using. Generally, the POE switch port transmission rate usage rate is about 40~60%. In addition, for surveillance cameras with infrared lamps, the power of the infrared lamp must be considered.
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