Product Description: 1. The box with the International Air SMC high-strength material (glass fiber reinforced unsaturated polyester plastic) molded from high temperatures, long life, anti-aging, anti-radiation; surface without any protection, with all-weather 2. thick protection box, with good insulation effect, can effectively prevent condensation inside the box door with special seal 3. door seal, waterproof door and three-door pin lock, safe, reliable, good sealing 4. Adopt 12-core welding wire 5. integrated module for FC, SC fiber optic adapter installed 6. Reliable cable fixing and grounding protection device 7. suitable for single and ribbon cable into the side 8. The applicable standards: YD / T 988-20079, product specifications are: 72-core, 96-core, 108 core, 144 core, 288 core, 576 core 1152 core conditions: Operating temperature: -40 ℃ ∽ + 60 ℃ Relative humidity: ≤95% (+ at 40 ℃) Atmospheric pressure: 70∽106Kpa Storage temperature: -40 ℃ ∽ + 60 ℃ moisture and rain and dust security in line with YD / T988-1998 standard main technical parameters: Insertion Loss: 1.31,1.55um LD light source. ≤0.30dB ≤0.18dB multimode singlemode return loss: 1.31,1.55um LD light source. Singlemode PC≥45dB UPC≥50dB APC≥60dB Insulation resistance: ≥2 × 104MΩ / 500VDC Withstand voltage: 3KVDC / 1min no breakdown, no arc box each surface perpendicular to the surface can withstand the pressure of greater than 980N, the door is open After the vertical pressure outermost end should be able to withstand greater than 200N functional requirements: 1. Cable fixing and protection should have cable access, fixed and protection devices. This means the introduction of the cable and fixed to the frame, to protect the cable into the cable core from damage. Metal part of the cable insulation and machine, cable metal sheaths and strengthen core fixed after the high-voltage protection should be reliable grounding connection. 2. Cable termination function should have fiber optic termination device which facilitates the cable core and pigtail splicing operation, construction, installation and maintenance. And protection of joints can be fixed without displacement straight and avoid external influence to ensure that the core coiled cable, pigtail from damage. 3. Transfer function via fiber optic line jumper connector fitting. Scheduling can be quickly and easily in the cable core sequence number and rerouting optical transmission system. 4. Protection cable pigtail cable core and core after stripping the protective device and after the introduction of fiber optic fixed termination devices. 5. Capacity and capacity per rack unit volume (determined by the number of adapters) shall be defined in product standards, the optical fiber terminating device, pigtail plate line device, the adapter card connector, pigtails and adapters, in full capacity range should be able to complete set configuration.