采用高強度的國際 材料SMC（玻璃纖維增強不飽和聚酯塑料）經(jīng)高溫模壓而成，使用壽命長，防老化、抗輻射；表面不需任何防護，具備全天候防護功能

  箱體厚實，具有良好的隔熱效果，能有效防止箱內(nèi)水汽凝結(jié)

  箱門采用特種密封門封、防水門鎖及三點式門銷鎖定，安全可靠，密封性好

  采用12芯熔接配線一體化模塊

  適合FC、SC光纖適配器的安裝

  有可靠的光纜固定和接地保護裝置

  適合于單芯和帶狀光纜的成端

  適用標(biāo)準(zhǔn)：YD/T 988-2007

  4指標(biāo)

  連接器損耗（插入，重復(fù)）：≤0.5db

  回波損耗：pc≥40db, UPC≥50dB, APC≥60dB

  光纖轉(zhuǎn)接器插拔1000次變化量≤0.2dB

  容量

  光纜交接箱的容量是指光纜交接箱能成端纖芯的數(shù)目。容量的大小與箱體的體積、整體造價、施工維護難度成正比，所以不宜過大。在實際設(shè)計和工程中，人們對光纜交接箱的容量問題似乎僅僅要求容量越大越好，但這樣可能帶來的后果是：箱體體積增大、設(shè)備價格增高。實際上，我們經(jīng)常所說的交接箱的容量應(yīng)該指的是它的配纖容量，即主干光纜配纖容量與分支光纜配纖容量之和。 光纜交接箱的容量實際上應(yīng)包括主干光纜直通容量、主干光纜配纖容量和分支光纜配纖容量3部分。

  Product introduction

   body is made of high-strength international material SMC (glass fiber reinforced unsaturated polyester plastic) through high-temperature molding, with long service life, anti-aging and radiation resistance; The surface does not need any protection and has all-weather protection function

   the box is thick and has good heat insulation effect, which can effectively prevent water vapor condensation in the box

   the box door adopts special sealing door seal, waterproof door lock and three-point door pin locking, which is safe and reliable with good sealing perbbbbance

   12 core fusion wiring integrated module is adopted

   suitable for the installation of FC and SC optical fiber adapters

   reliable optical cable fixing and grounding protection devices are available

   suitable for the termination of single core and ribbon optical cables

   applicable standard: YD / T 988-2007

  4 indicators

  Connector loss (insertion, repetition): ≤ 0.5dB

  Return loss: PC ≥ 40dB, UPC ≥ 50dB, APC ≥ 60dB

  The optical fiber adapter is plugged in and out for 1000 times, and the change is ≤ 0.2db

  capacity

  The capacity of optical cable junction box refers to the maximum number of end fiber cores that can be bbbbed in the optical cable junction box. The capacity is directly proportional to the volume of the box, the overall cost and the difficulty of construction and maintenance, so it should not be too large. In actual design and engineering, it seems that people only require the larger the capacity of the optical cable junction box, the better, but the possible consequences are: the volume of the box increases and the price of equipment increases. In fact, what we often say about the capacity of the transfer box should refer to its fiber distribution capacity, that is, the sum of the fiber distribution capacity of the trunk optical cable and the fiber distribution capacity of the branch optical cable. The capacity of the optical cable junction box should actually include three parts: the through capacity of the main optical cable, the fiber distribution capacity of the main optical cable and the fiber distribution capacity of the branch optical cable.