Graphic: Function and connection of optical cable, terminal box, pigtail

In the network cabling, usually the outdoor (connected between buildings) uses the optical cable, and the indoor (inside the building) uses the Ethernet twisted pair cable. Then, how to convert the optical cable transmission media outside the building and the Ethernet transmission media inside the building? ? Which equipment is used again? What is their role? What about the relationship between them?

as the picture shows:

Connection relationship:

Step 1: The outdoor optical fiber cable is connected to the terminal box. The purpose is to weld the optical fiber and the pigtail in the optical fiber cable, and lead it out through the jumper.

Step 2: The fiber jumper is connected to the fiber transceiver to convert the optical signal into an electrical signal.

Step 3: The optical fiber transceiver leads to electrical signals. The transmission medium used is twisted pair. At this point the twisted pair can access the RJ-45 port of the network device. This completes the conversion of the photoelectric signal.

Note: Many network devices now have optical ports (fiber interfaces), but if you do not have an optical module (similar to the fiber transceiver function), this port cannot be used.

Graphic: Function and connection of optical fiber terminal box and pigtail

Optical cable terminal box function: Terminate the optical cable, connect the core and pigtail in the optical cable, and the internal structure of the optical cable terminal box, as shown in the figure.

For example: A 4-core cable (4 cores in the cable), then this cable can be connected to the terminal box and can weld up to 4 pigtails, which leads to 4 jumpers. In the figure above, only two welds have been made and two jumpers have been introduced.

Pigtail: A connector at one end and a broken end of a fiber optic core at the other end. Through welding, with other fiber optic cable core connected.

Pigtail effect: It is mainly used to connect the connectors at both ends of the fiber. One end of the pigtail is welded to the fiber connector, and the other end is connected to the fiber transceiver or fiber module through a special connector to form an optical data transmission path.

Generally, we do not buy pure pigtails, but jumpers as shown in the figure. When the middle is cut, it becomes a pigtail.

Pigtail: Used in the terminal box to connect the optical fiber in the optical cable, and connect the pigtail and jumper through the terminal box coupler (adapter).

Jumper: Both ends of the jumper are active connectors. Connect pigtails and equipment.

Optical cable terminal box: It is a box that protects the optical fiber cable and protects the fiber cable from the tail fiber.

Fiber Optic Coupler: The active connection for two fibers or pigtails is commonly referred to as a flange.

Fiber optic terminal box: It is the terminal connector of a fiber optic cable. One end of the fiber optic cable is fiber optic cable, and the other is pigtail fiber. It is equivalent to a device that splits a fiber optic cable into a single optical fiber.

Optical fiber splice box: It is used to connect two optical cables to one long optical cable. They can not be used interchangeably. Fiber optic cables and optical transceivers are connected through optical fiber terminal boxes. That is, optical fibers can only be inserted into pigtails.

Can the terminal box and the fusion box be understood in this way? In which the two ends of the optical fiber are fused, but the former is the welding of the optical cable and the pigtail, and the latter is the welding between the optical cables.

The splice box and the terminal box are different. The splice box is fully sealed but it can not be fixed but the terminal box is not waterproof. The internal structure can fix the optical cable on one side and the fixed fiber coupler can only connect two pigtails on one side. And it is divided into SC/PCFC/PC and other interfaces, and the fusion between the optical cable and the pigtail is fused with the fusion splicer.

What is the difference between pigtail and jumper? Can the jumper be split into two for tail fiber use? Only one end of the pigtail is an active joint, and both ends of the fiber jumper are active joints. There are many types of interfaces, and different interfaces require different couplers. The fiber jumper is divided into two and can be used as tail fiber.

INCOLOY®

The registered trademark name, Incoloy, is applied as the prefix name to several highly corrosion resistant high temperature strength metal alloys produced by Special Metals Corporation. These Incoloy alloys or superalloys are nickel-based alloys that exhibit traits that include good corrosion resistance in aqueous environments, excellent strength and oxidation resistance in high-temperature settings, good creep-rupture strength, and ease of fabrication.

Alloys of identical chemical and mechanical properties are available from other manufacturers and offer excellent alternatives to the various Incoloy brand alloys.

The corrosion-resistant superalloys are widely used in extreme environments where tremendous heat and corrosion resistance is paramount to the integrity of the end product. Chemical and petrochemical processing, power plants, and oil and gas industries widely use these superalloys.

Incoloy Availability

Yuhong Group supplies Incoloy 800, 800H/HT and 825 in the form of plate, sheet, strip, bar, wire, pipe, tubing, pipe fittings, and flanges.

What are the Characteristics of Incoloy ?

Good corrosion resistance in aqueous environments
Excellent strength resistance in high-temperature settings
Excellent oxidation and carburization resistance in high-temperature settings
Good creep-rupture strength
Ease of fabrication

In what Applications are Incoloy alloys used ?

Process piping, heat exchangers, carburizing equipment, heating-element sheathing, nuclear steam-generator tubing
Chemical and petrochemical processing, power plants, industrial furnaces, heat-treating equipment
Pollution-control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production, pickling equipment

Superalloys, also known as high performance alloys, have become the steel of choice for corrosion resistance and versatility.

*Incoloy® is a registered trademark of Special Metals Corporation group of Companies.

Incoloy Tube

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YUHONG GROUP CO.,LIMITED , https://www.jessro-pipefittings.com