... compliance with international standards. 5,Multi-fiber differencesHDA-09-type cable connector box and its supporting high-capacity, more flexible waterproof differences ... than four hours, 12 small cycle, the internal air pressure 60 KPa ± 5KPa to 10, the air pressure drop no ... escape. High-temperature seal: internal air pressure 70 KPa, at 60 °C to maintain 168 hours, pressure does not drop. Additional ...