Uses: Used for intermediate connection and branch protection of optical cable lines, and can play the role of sealing, protecting and placing optical fiber joints and storing reserved 020202 optical fibers from external environmental factors. Features: a. Application: Suitable for skeletal, stranded, bundle-tube armored and non-armored optical cables, flexible to use. b. Good sealing performance: The product is sealed with silicone rubber sealing ring. Seal the cable orifice with a sealing heat shrinkable tube or self-adhesive tape. c.Strong weather resistance: imported high-strength aluminum alloy material, and added anti-aging agent, high and low temperature resistance, good anti-aging performance, long service life. d. High mechanical strength: it has good vibration resistance, tensile resistance, compression resistance, impact resistance, bending resistance, torsion resistance, and is strong. e.Reasonable structure: fiber coiling tray, using loose-leaf rotating type, can be flipped arbitrarily according to needs, convenient construction and maintenance, no additional loss of fiber coiling, radius of curvature ≥40mm. 0202f. There is a grounding device. Connector box specifications, models and parameters: a. Temperature performance: -40℃~+80℃. b. Resistance strength: 15kV DC, no breakdown for 2 minutes. d. Vibration resistance: 106 times. e. Sealing performance: 100kPa, 72 hours, no change in pressure. g. Length 500mm, outer diameter 200mm, inner diameter 180mm. h. The outer diameter of the optical cable is 22mm, and the number of connector cores is 144 cores.