How to install the cable connector box
Fiber preparation
1. Remove the outer sheath of the optical cable (if any, remove the shielding and armor) and then remove the wrapping layers until the loose tube is exposed. For the specific method, please follow the standard method recommended by the optical cable manufacturer, with a preparation length of 3 meters.
2. Clean the loose tube and the reinforced core sheath with detergent, remove the excess filling tube, and polish the outer sheath of the optical cable 150mm long with the provided sandpaper.
Optical cable installation
1. Select the sealing ring with the smallest inner diameter according to the outer diameter of the optical cable, and put the two sealing rings on the optical cable.
2. Put the optical cable into the corresponding hole.
3. Connect the shield and ground.
4. Wrap the self-adhesive sealing tape between the two sealing rings so that the sealing tape is wound to be flush with the outer diameter of the sealing ring to form a sealed end of the optical cable.
5. Press the sealed end of the fiber optic cable into the fiber optic cable entry hole.
6. Use the hose clamp to pass through the fiber optic cable reinforcing rib fixing seat and the cable core bracket, and fix the fiber optic cable on the base of the connector box. Tighten the hose clamp screw until the hose clamp is tightened.
7. Tie a nylon cable tie on the optical cable and cut off the excess length.
8. Please use plugs to seal the other unused optical cable holes. Sealing tape is also wrapped around the plug, and the requirements are the same as 5.2.4.
9. Wrap the reinforcing member on the countersunk screw of the splice tray support and press it tightly.
Fiber connection
1. Prepare the optical fiber to be coiled 1.5 times after being put on the reel, and then all the remaining fibers are coiled in the box.
2. Use a single-core buffer tube for single-core fiber loading, and use a ribbon buffer tube for ribbon-shaped fiber loading. Tie tightly with nylon cable ties at the entrance of the splice tray.
3. Connect the two (band) optical fibers according to the specified method, and the connector should be inserted into the slot of the splicing unit, and the excess length should be coiled in the disc.
4. Cover the splice tray and press it to lock it in place.
5. According to the different capacity required by the splice box, determine the number of splice trays superimposed on the splice tray. The superposition type of the splice tray must meet the requirements of the optical fiber connector to be inserted into the splicing unit and inspection and maintenance. For every two fusion splice trays, six holes on the rubber folds can be clamped to each of the three convex twists on the upper and lower trays; four rubber folds, two symmetrical positions on each side of the tray, such as stacking five For the splicing disc, according to the above method, the two-layer disc and the three-layer disc are buckled, the three-layer disc and the four-layer disc are buckled, the four-layer disc and the five-layer disc are buckled, and so on, the five discs are stably stacked together. . When it is necessary to observe or maintain the welding condition of a certain layer of disk, only need to remove the two folds fastened by the upper layer of the single side of the disk, and the fusion disk can be opened like a book page.
Box body seal
1. Box body packaging: Tighten the valve nozzle and the ground screw before the box body is packaged. ? Insert the sealing strips into the sealing grooves around the box body;? Use sealing strips to embed the grooves in the "U" grooves at both ends of the joint box. Note: When using the sealing strip, do not pull the sealing strip artificially to avoid leakage.
2. Gently close the upper cover of the joint box, screw in the fastening bolts, tighten the tightening sequence in the order of the numbers marked on the cover, and use a torque wrench to forbid it, and the torque reaches 25N·m.
3. After 5 minutes, use a torque wrench to tighten in sequence, and the torque still reaches 25N·m.
Cover removal
1. Loosen the 10 fastening bolts in sequence, and the cover and seat are still together.
2. Take four fastening bolts and insert them into the four corners of the box, and screw them into the top cover of the four corners symmetrically and evenly, so that the separation between the cover and the seat is as high as 6mm.
3. After 5 minutes, top the cover evenly to separate the cover and the seat by more than 6mm, until the cover and the seat can be easily separated by hand. Note: The cover must be removed gently when separating to avoid damage to the spliced fiber.
4. If the capacity is increased or the inspection is over, the cover needs to be closed again, the old sealing strip must be removed, and the sealing strip must be re-laid to the sealing groove, including the seal at the cable entrance end of the "U" groove
