Introduction: Armored Stranded Corrugated Steel Double Jacket Cable is commonly known as Outdoor Armored Stranded Loose tube Fiber Optic Cable. It is mostly Installed in riser ducts, cable trunks and direct bury. It can also be made into a 12 to 288 cores structure with a cross-section Stranded Loose tube made of color coating fibers and filled with waterproof compounds. Stranded Loose tube stranded around the strength member which in the central of cable into cable core, a double layer of water-blocking tape is longitudinal wrapped around the cable core, after APL longitudinal wrapped, an inner PE jacket extruded, then, after Corrugated steel is longitudinal wrapped, then an outer jacket extruded. A layer of outer Jacket Material is polyethylene (PE), low smoke halogen-free flame-retardant polyolefin (LSZH), flame-retardant polyethylene (ZRPE) or other materials. Due to its small diameter and flexibility, the armored tranded loose tube cable is ideal for installation in cable trays. It can be installed in modern FTTH and FTTB systems or connections between buildings. Other sheath materials are available on request. Application: Armored Stranded Corrugated Steel Double Jacket Cable bundles assemblies consist of a between 12~288 core, that enables installation of in building wiring applications. The fiber assemblies are bundled with outer sheath is a color coating fiber and filled with waterproof compounds. A layer of outer Jacket extruded outside the loose tube with Jacket Material is polyethylene (PE), low smoke halogen-free flame-retardant polyolefin (LSZH), flame-retardant polyethylene (ZRPE) or other materials. This fiber cable is applied in cable trays, direct bury and FTTx Access installations. Used in access network outdoor in customer premises network. Used as access building cable in premises distribution system, especially used in outdoor access cabling, the design makes the fiber cable are suitable for the following applications • Vertical Backbone Networks • Outdoor direct bury cabling • Distribution system cable Operation Features: The Armored Stranded Corrugated Steel Double Jacket Cable bundles for in building cabling systems are dedicated for outdoor network infrastructure. The diameter is suitable to be used in projects requiring large number of slots and the fiber number between 12~288 core optical fiber cable which can be routed into ducts, and optical fiber cable with the following features • Flame retardant characteristics meet the requirements of relevant standards • Excellent temperature performance • Soft and easy to strip • High strength Stranded Loose Tube member • Small bending radius • Meet various requirements of market and clients • Excellent environmental properties • Perfect cable structure with high fiber density • Singlemode or Multimode • Fiber: G.652D, G.657A1, G.657A2 Temperature Performance: Storage and Transportation [°C]: -40 to +60 Installation [°C]: -20 to +50 Operation [°C]: -30 to +60 Mechanical Performance Test compliance: Tension: IEC 60794-1-21 Method E1 Bend: IEC 60794-1-21 Method E11 Crush: IEC 60794-1-21 Method E3 Marking: Armored Stranded Corrugated Steel Double Jacket Cable assemblies have markings showing the cable type and fiber number, Year of manufacture, Length marking. The individual fiber core is identified by their color according to the standard fiber colors.