(1) peel the cable and fix the cable to the splice box
Before stripping the cable should be removed from the construction of the damaged deformation of the part, the use of special stripping tools, the cable outer sheath stripping length of about 1m, such as in the case of armored fiber optic cable, with a vise will be armored cable sheath cable wire clamps, the use of wire cable outer sheath stripping, and the cable fixed to the splice box, with toilet paper will be wiped clean after the grease, wear into the splice box. Fixed wire must be pressed tightly, there can be no loose. Otherwise, it is possible to cause the fiber optic cable to roll broken core.
(2) Fiber splitting
Pass the fiber through the heat-shrinkable tube separately. Separate different bundles and colors of optical fibers through the heat shrink tube. Peel off the coating layer of the fiber is very fragile, the use of heat-shrinkable tube, you can protect the fiber fusion head. As shown in the figure below:
(3) Prepare the fusion splicer
Turn on the power of the fusion splicer, use the preset program for fusion splicing, and remove the dust in the fusion splicer in time during and after use, especially the dust and fiber froth in the clamps, each mirror and V-slot.
(4) the production of butt fiber end face
Fiber optic endface production will directly affect the quality of fiber optic transmission after docking, so before fusion splicing must be done to be fused fiber endface. First of all, use the fiber optic splicing machine configuration of fiber optic stripping pliers to strip the coating layer on the fiber core, and then wipe the bare fiber with alcohol cleaning cotton several times, the force should be moderate.
Then use a precision fiber optic cutting knife to cut the fiber, the cutting length is generally 10mm ~ 15mm.
(5) Place the fiber
Place the fiber in the V-shaped slot of the fusion splicer, carefully press the fiber pressure plate and fiber clamps, according to the fiber cutting length set the position of the fiber in the pressure plate, generally the cutting surface of the docking fiber is basically close to the tip of the electrode position. Close the wind shield, press the "SET" button to automatically complete the fusion splicing.
(6) Remove the fiber and heat the heat shrink tube with the heater
Open the windshield, remove the fiber from the fusion splicer, then place the heat shrink tube in the middle of the bare fiber and heat it in the furnace. The heater can use 20mm miniature heat shrink tubing and 40mm and 60mm general heat shrink tubing, 20mm heat shrink tube takes 40 seconds, 60mm heat shrink tube for 85 seconds.
(7) Disc fiber fixed
The spliced fiber tray to the fiber shelter tray, in the tray fiber, the larger the radius of the disk circle, the greater the arc, the smaller the loss of the entire line. So be sure to maintain a certain radius, so that the laser in the fiber transmission, to avoid some unnecessary loss.
(8) Seal and hang up
If the field fusion splicing, splice box must be sealed to prevent water. After the fusion box into the water, due to the fiber and fiber fusion point long-term immersion in water, may first appear part of the fiber attenuation increase. It is best to make the splice box waterproof measures and hook and hang on the hanging wire. So far, the fiber optic fusion splicing is complete.
