1.1 主要用途及使用范圍 
        礦用千兆環網交換機（以下簡稱交換機）主要適用于煤礦井下，主要用于數據的傳輸與交換。能滿足應用領域中高彈性及高擴充性的需求，可協助客戶全面升級以太網絡。具備高彈性及高效能，適用于任何嚴竣的場合應用。 
        1.2 型號組成及代表意義 
        KJ  J   － 166 
          

                                                                                   
                                        
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