The FC, ST, SC, LC, and MTRJ physical interfaces are connected in different ways.
FC is a circular spiral port.
ST is a circular 45 degree bayonet.
SC is a square socket.
LC and MTRJ are small core connectors, which are used less in China, but they are carried on some imported equipment.
PC, APC, UPC represent the front end structure of the ceramic core!
PC is a spherical structure, APC is a diagonal 8 degree Angle structure, UPC is a hyperplane structure.
The connection distance of multi-mode cable is much shorter, is 300 meters or 500 meters (mainly depending on the difference in laser, there are generally two kinds of short-wavelength laser light source, one is 62.5, one is 50)
Optical fiber jumper generally commonly used specifications such as win for optical fiber jumper, there are 1 meter, 3 meters, 5 meters, 10 meters, 15 meters, etc., if you need other special length specifications of the light jumper, you can let win for manufacturers to customize the length of arbitrary customization, generally within a few kilometers are no problem. In addition, the optical fiber jumper focuses on a jumper, generally shorter, used in the computer room, optical fiber into the home, optical fiber module and other equipment above, if it is a long distance pull optical fiber, this ordinary optical fiber jumper is not used, you need to customize the kind of leather cable or armored cable can be.
Step 1: Select the correct connector type (LC/SC/ST/FC/MPO/MTP)
Different connectors are used to plug in different devices. If the ports on both devices are the same, we can use LC-LC/SC-SC/MPO-MPO jumpers. If you want to connect different port type devices, LC-SC/LC-ST/LC-FC jumpers may be right for you.
Step 2: Choose single mode or multi-mode cable type?
The single-mode fiber jumper uses 9/125um fiber, and the multi-mode fiber jumper uses 50/125um or 62.5/125um fiber. Single-mode fiber jumper is mainly used for long-distance data transmission. Multimode fiber jumpers are mainly used for short-distance transmission. The jacket of the general single-mode fiber jumper is yellow, and the jacket of the multi-mode fiber jumper is orange or blue.
Step 3: Choose simplex or duplex cable type?
Simplex means that this fiber jumper comes with only one cable, with only one fiber connector at each end, for bidirectional (BIDI) optical modules. Duplex can be seen as two optical fiber jumpers side by side for common optical modules.
Step 4: Select the correct jumper length (1m / 5m / 10m / 20m / 30m / 50m)
Fiber jumper lengths vary, usually 0.5m to 50m. You should choose the appropriate cable length based on the distance between the devices to be connected.
Step 5: Select the correct connector polishing type (UPC/APC)
Because the loss of APC connectors is lower than that of UPC connectors, the optical performance of APC connectors is generally better than that of UPC connectors. In the current market, APC connectors are widely used in more return loss-sensitive applications such as FTTx, passive optical networking (PON) and wavelength division multiplexing (WDM). But APC connectors are usually more expensive than UPC connectors, so you should consider whether you need an APC connector according to your actual situation. For applications that require high-precision fiber signals, APC should be the first consideration, but other less sensitive systems will perform just as well with UPC. Generally, optical fiber jumpers with APC connectors are green in color, while those with UPC connectors are blue in color.
Step 6: Select the right sheath (PVC/LSZH/OFNP/armouring)
In general, there are three types of jumper jacket: PVC, LSZH, OFNP. PVC material jumper jacket is generally common, fire resistance is general, the lowest price; LSZH jumper sheath is made of low smoke halogen-free material, environmental protection and flame retardant performance is better, but the price is more expensive; OFNP jumper jacket refers to the United States Fire Protection Committee standard, can be flame retardant, this material will automatically extinguish when leaving the fire source, the most expensive, suitable for large data centers. You can choose according to your own situation. In addition to the above three jumpers, there is another type of armor. Its steel sleeve structure can protect the fragile optical fiber well, and the bending resistance is relatively strong. Such jumpers can withstand higher pressures, so they are suitable for wiring along floors and other areas that may be trampled. The fiber jumper also has the advantages of strong wear resistance, tensile resistance and rat-bite resistance.
