There are several types of jumpers and pigtails. The main difference between fiber jumpers and fiber pigtails is certainly that only one end of the pigtail provides connectors, and both ends of the jumper have got connectors. Generally speaking, the jumper is normally cut from the middle to end up being two tail Slim.
1. What are jumpers and pigtails?
The jumper is a cable directly linked to the desktop computer or device to facilitate the connection and management of the device. The jumper has a thick protective layer and is often used between the terminal box and the optical transceiver.
Only one end of the pigtail includes a connector, and the various other end is an optical fiber connector, which is connected to other optical fiber cores in the kind of fusion splicing, and generally appears in the optical fiber terminal box.
2. Specifications and types of jumpers and pigtails
Jumpers are generally distinguished by single-mode and multi-mode in data transmission devices. The color of single-mode jumpers is normally yellow, and there are two wavelengths, 1310nm and 1550nm, and the transmission distances are 10km and 40km; Usually orange, the wavelength is 850nm, and the transmission distance is usually 500m. According to the joint type, it can be divided into the following types:
FC type jumper: round optical fiber connector, reinforced with a metal sleeve, and the fixing method is screw buckle.
SC-type jumper : rectangular connector, fixed by plug-in pin latch type, no need to rotate.
ST type jumper: round connector, using snap-in connection, the fixing method is screw buckle.
LC-type jumper: square connector, fixed by the modular jack (RJ) latch principle for easy operation.
The types of pigtails are mainly single-core pigtails, dual-core pigtails, 4-core pigtails, 12-core bundle pigtails, 12-color bundle pigtails, SC bundle pigtails, FC bundle pigtails, LC bundle pigtails Pigtails and ST bundle pigtails. In addition to these, it could be divided into the following types:
Bundle pigtails: These pigtails are also called pigtail bundles and consist of Corning tight-sleeved optical fibers, aramid fiber reinforced elements and flame-retardant PVC protective sleeves. Compared with other types of pigtails It is definitely more popular and widely used.
Ribbon pigtails: Ribbon pigtails are the same as bundle pigtails, both of which are multi-core pigtails. The ribbon pigtails contain 12-core optical fibers. One end can be used for fusion splicing and the other end is equipped with a connector.
Armored pigtails: The outermost layer of this pigtail has an additional metal protective sleeve than conventional pigtails, so it will be more durable than ordinary pigtails.
Fiber pigtails: low insertion loss, high return loss, good interchangeability and repeated pluggability, and very convenient to use.
Waterproof pigtail: with a dense protective sleeve and waterproof sealing joint, it is suitable for harsh environments.
3. Application of jumpers and pigtails
The jumper is mainly used for the bond between your optical fiber distribution frame or the optical fiber information socket and the switch, the connection between the switch and the switch, the bond between your switch and the pc, and the connection between the optical fiber information socket and the desktop computer. For management, apparatus room and work area subsystem.
Pigtails are mainly used in optical fiber communication systems, optical fiber access networks, optical fiber data transmission, optical fiber CATV, local area network (LAN), test equipment, optical fiber sensors, serial server, FTTH / FTTX, telecommunications networks and pre-termination installation.
4. Notes on jumpers and pigtails
The transceiver wavelengths of the optical modules linked by jumpers must be the same. Under normal circumstances, short-wave optical modules are equipped with multi-mode jumpers, and long-wave optical modules include single-mode jumpers to ensure the accuracy of data transmission.
The jumper should reduce the winding as much as possible during the wiring process, which can decrease the attenuation of the optical signal during the transmission process.
The connector of the jumper should be kept clean. After use, the connector ought to be sealed with a protective sleeve to avoid the entry of oil stains and dust. If stains are found, clean with a cotton swab dipped in alcohol.
The pigtail is relatively slender.The pigtail cross-section comes with an 8-degree angle and is not resistant to high temperatures.It will be damaged if it exceeds 100°C, so avoid using it in a high-temperature environment.
In the optical fiber transmission system, Armored pigtails and jumpers are the main tools. Nothing is lacking.There are also very high requirements for data transmission.The quality of the ferrule and the technology and method of production all determine the stability of data transmission.
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تاریخ انتشار : پنج شنبه 18 ارديبهشت 1399 |