Fiber patch cords are used to make patch cords from equipment to fiber cabling links. A thicker protective layer is generally used for the connection between the optical transceiver and the terminal box.
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fiber jumper fiber optic jumper
classification by different transmission media can be divided into single-mode silica-based fibers common multimode jumpers, as well as other fiber jumpers in plastic as the transmission medium; According to the connector structure can be divided into: FC jumper, SC jumper, ST jumper, LC jumper, MTRJ jumper, MPO jumper, MU jumper, SMA jumper, FDDI jumper, E2000 jumper, DIN4 Jumpers, D4 jumpers and more.
The more common fiber jumpers can also be divided into FC-FC, SC-SC, ST-ST, LC-LC, FC-SC, FC-ST, FC-LC, SC-ST, and SC-LC.
Single-mode fiber: The general fiber jumper is yellow, the connector and protective cover are blue, and the transmission distance is long.
Multi-mode Fiber: General fiber jumpers are indicated in orange, and some are shown in gray. The connectors and protective covers are in beige or black; the transmission distance is short.
Note the use of fiber jumpers <br> <br> fiber jumper wavelength transceiver module must be the same at both ends, i.e. the ends of the fiber must be the same wavelengths of light module, a simple distinction is the color of the optical module to Consistent. In general, short-wavelength optical modules use multimode optical fibers (orange fibers), and long-wavelength optical modules use single-mode fibers (yellow fibers) to ensure data transmission accuracy.
Do not excessively bend and circulate the optical fiber during use. This will increase the attenuation of light during transmission.
After the fiber jumper is used, it must be protected by a protective sleeve to protect the fiber connector. Dust and oil contamination will damage the fiber coupling.
If the fiber connector is dirty, you can use a cotton swab to clean it with alcohol, otherwise it will affect the communication quality.
1. Before use, the fiber jumper ceramic ferrule and ferrule end face must be wiped clean with alcohol and absorbent cotton.
2. The minimum bend radius of the optical fiber is less than 30mm when used.
3. Protect the ferrule and ferrule end face to prevent bruising and contamination. Wear a dust cap immediately after disassembly.
4. Do not look directly into the end face of the fiber when transmitting the laser signal.
5. When damage to man-made and other irresistible factors occurs, replace the damaged fiber jumper.
6. Read the instruction manual carefully before installation, and install and debug it under the guidance of the manufacturer or the dealer's engineer.
7. If an abnormal situation occurs in the optical fiber network or system, it can be tested one by one by troubleshooting. When testing or troubleshooting a jumper fault, you can perform a continuity test first. You can usually use the visible laser pointer to determine the lighting of the entire fiber link. Or further use the precision optical fiber insertion loss return loss tester to test its various indicators. If the indicator is within the qualified range, the jumper indication is normal, otherwise it is unqualified.
Features of fiber patch cord 1. Low insertion loss 2. Good repeatability 3. Large return loss 4. Good inter-insertion performance 5. Good temperature stability 6. Strong tensile strength
Application of fiber optic jumper fiber optic jumper <br> <br> widely applied to: the communications room, fiber to the home, local area networks, fiber optic sensors, optical fiber communication systems, optical fiber transmission equipment is connected, like defense readiness. Applicable to cable television networks, telecommunications networks, computer fiber networks and optical test equipment. Subdivided down mainly applies to several aspects.
1. Optical fiber communication system 2. Optical fiber access network 3. Optical fiber data transmission 4. Fiber CATV
5. Local area network (LAN)
6. Test equipment 7. Fiber optic sensors Based on the fire rating of the building and the fire resistance requirements for the materials, the integrated wiring system should take appropriate measures. The use of flame-retardant cables and optical cables should be used to place cables or optical cables in flammable areas and building shafts; in large public places, flame-retardant, low-smoke and low-toxic cables or optical cables should be used; adjacent equipment rooms or transfer rooms Flame-retardant wiring equipment should be used. The construction and installation points refer to the requirements of CECS 89:97 of the “Building and Building Complex Cabling System Engineering Acceptance Specification†GB/T50312-2000 and “Building and Building Complex Cabling System Engineering Construction and Acceptance Specificationsâ€.
Pigtail fiber jumpers and jumpers
distinction <br> <br> used to make fiber optic jumper wires from the device to the optical fiber link. A thicker protective layer is generally used for the connection between the optical transceiver and the terminal box.
Pigtail fiber is also called pigtail wire. There is a connector at one end only, and the other end is a broken end of an optical fiber cable core. It is connected to other fiber optic cable cores by welding and often appears in the fiber optic terminal box. It is used to connect fiber optic cables and optical fiber transceivers. (couplers, jumpers, etc. are also used).
The fiber optic connector is a device for detachable (active) connection between the optical fiber and the optical fiber. It precisely couples the two ends of the optical fiber so that the optical energy output from the emitting fiber can be coupled to the receiving fiber to the maximum extent. It also minimizes the impact on the system due to its involvement in the optical link, which is a basic requirement for fiber optic connectors. To a certain extent, fiber optic connectors also affect the reliability and performance of optical transmission systems.
The “/†of the
fiber jumper grinding method indicates the cross-section process of the fiber joint, that is, the grinding method.
"PC" is most widely used in telecom operators' equipment, and its connector section is flat.
"SC" indicates that the pigtail connector is a SC connector. The industry-wide optical interface for transmission equipment is generally used with an SC connector. The SC connector is an engineering plastic and has the advantages of high temperature resistance and is not easily oxidized. The ODF side optical interface generally uses an FC connector. It is a metal connector, but ODF will not have high temperature problems. At the same time, the number of pluggable metal connectors is larger than that of plastics. There are more ODF pigtails to maintain than optical fiber pigtails. Other common connector types are: ST, DIN, FDDI.
"PC" refers to the cross-section process of fiber joints, PC is the most common. The APC model is widely used in broadcasting and early CATV. The end of the tail fiber tip adopts an end face with an inclination (8 degrees), and the slope is generally not seen, which can improve the quality of the television signal. The main reason is that the television signal is analog light modulation, and when the coupling coupling face is vertical, the reflected light edge The original path is returned. Because the unevenness of the fiber's refractive index profile will return to the coupling surface again, in this case, although the energy is small, the analog signal cannot completely eliminate the noise, so it is equivalent to superimposing a weak signal with time delay on the original clear signal. It is ghosting on the screen. The tailgap tilt angle allows the reflected light not to return along the original path. Normal digital signals generally do not have this problem.
There is also a "UPC" process, which has a lower attenuation than a PC. Generally, equipment with special requirements has its flange plate generally FC/UPC. Foreign manufacturers ODF racks use FC/UPC to increase the internal ODF equipment's own index.
How to detect the optical fiber jumper is qualified?
Using the insertion loss tester, first use the light pen to measure whether the jumper is clear or not. Determine the index of the fiber without breaking. General carrier-grade indicators: Insertion loss is less than 0.3dB. Return loss is greater than 45dB.
Optical fiber jumper performance testing is divided into:
1. Optical performance tests, including return loss/insertion loss tests.
2. Face geometry test, the parameters of the test include radius of curvature, apex offset, fiber height and so on.
3. Scratch detection of optical fiber end face, using video optical fiber magnifier to observe.
4. Fiber tension testing requires testing the fiber connector for the amount of tension it can withstand.
5. Ambient temperature experiment, need to test the performance index of fiber connector under different ambient temperature conditions.
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