In addition to indoor single-core, indoor double-core optical cables, blown cables, and rodent-proof optical cables. What are the classifications of indoor optical cables? Take a look.
Indoor fiber optic cable
(1) Vertically raise the optical cable (Riser)
After the optical cable enters the building, it is necessary to provide the connection between the entrance equipment, equipment room or computer room and the communication cabinet on different floors, which is called "vertical wiring system". At this time, the wiring optical cables are mostly located in the vertical pipe (Riser) of the shaft between floors. For this reason, the optical cable needs to bear greater tensile force (maximum self-weight).
(2) Single-core, double-core interconnection indoor optical cable (Interconnectcable)
Tight-buffered single-core, tight-buffered 8-core double-core, tight-buffered 2-core to 4-core circular structure indoor optical cable, due to the use of a tight-buffered structure with excellent flexibility and high load-bearing aramid yarn around the tight-buffered optical fiber, the structural size of the cable Small size, good flexibility, can withstand a small bending radius, no traces of inventory, it is used for optical fiber to workstations, plug-in cables, pigtails, jumpers in communication cabinets, communication cabinets to indoor wall outlets, and outlets to transceivers Ideal for interconnecting fiber optic cables. They directly have standard connectors, and play the role of interconnecting between optical end equipment and backbone (vertical) optical cables in communication cabinets, distribution boxes, protection boxes, and equipment boxes. This type of optical cable is convenient and basic to install in a limited space, and it becomes an ideal network cable solution for wiring in a limited space and plugging flexible wires in buildings.
(3) Optical cable for inflatable environment (Plenum)
In indoor applications, Plenum-rated indoor cables are required when the cables need to pass through transmission ducts, high-pressure plenums, or air-handling systems to transmit information. This special application environment puts forward stricter requirements on the flame retardancy and corrosion resistance of optical cables. Therefore, the tight sheath material and outer sheath material of the indoor optical cable used are more stringent. The tight sheath is PVC material, and the outer sheath material is PVC material with flame retardant added or hard fluoropolymer that meets UL certification. Designed with PVC over fluoropolymers. Because PVC is soft and easy to bend, there is no trace of inventory, and it can be stored in a circle.
(4) Rodent-proof optical cable
Single-core or multi-core tight-buffered optical fiber cables protected by stainless steel hoses have strong lateral pressure resistance, bending resistance, high tensile strength, and excellent rodent resistance. It can be used in occasions where trampling occurs, such as laying under carpets or places where limited space needs to be bent frequently or where there are rodents.
In addition, there are many things: First, when the optical fiber ribbon cable is used to enter the building, the matching indoor optical fiber ribbon cable (optical fiber ribbon + aramid yarn + PVC sheath structure) can be selected. Second, when laying underground pipes and ceilings in the equipment room, enhanced structures can be used, such as using PE and PU sheaths on the basis of distribution cables or using aluminum-PE sheaths on the basis of scattered cable structures. sets of structures etc. The third is that when the metal armored sheath is used for the distribution cable, it can be used for overhead and direct buried laying. Fourth, low-smoke zero-halogen (LSZH) material can be used as the outer sheath in occasions with high requirements on toxicity and smoke generation. Fifth, when the PU sheath is used, it has good resistance to friction, scratches and chemical corrosion, and can be used for emergency, repair and military optical cables.
