JHHG mine the scope of application of the cable junction box suitable for coal mine within a variety of fiber optic cable fiber pigtails or pigtail cable splice, and play a role to protect the fiber optic connectors and wiring. Technical parameters JHHG mining cable junction box, cable access hole configurations: 1 pair, two pairs, three pairs; rubber apron: inlet and outlet hole Φ13 3 Dimensions: 305 x 160 x 62 JHHG mineral fiber optic wiring the box Features Series junction box structure design is up and down open type, open the shell simply unscrew the 4 fixing screws in the base, easy to install and reliable. The material forming high quality metal casing, high mechanical strength, and by electrostatic spray, nice appearance. Box splice tray flip design, the opening angle of 90 °, fixed heat shrink tubing, coiled fiber expansion and maintenance are very convenient.