Ideally, the splices are tested with an OTDR as soon as they are made and before placing them in a splice tray. The fusers give an estimate of the splice loss, but it is only an estimate. The OTDR can confirm the quality of the splices, giving the installer the assurance that the splice is good and that the splice box will not need to be reopened to redo a defective splice.
Special care should be taken when putting the splices in the trays and when organizing the underground ducts or fibers in the box. A problem that arises a lot is that the fibers are broken when the trays and boxes are assembled. Finding the fiber breaks inside the box is complicated since they are too close to the joint to resolve them with an OTDR. If the joint is close enough to allow its location with a visual fault locator, the break can be found with a visual inspection.
Termination
At least the termination is usually done inside a building near the telecommunications equipment, either a termination of a wiring of an installation in an external or internal plant. The installer may have trouble finding the right space, for example in a telecommunications room with rows of connection panels and racks. With luck, the cable installer will have stored each of the service cables in a loop to take them to an open area and finish them. Many installers use portable folding tables or carts with wheels to create a work area where they can reach the ends of the cables.
If the building is still under construction, dust can be a problem. Even in finished buildings, air conditioning systems can lift dust. You must check that there is no dust; If it is necessary to work in a dusty environment, clean all tools, granulated sandpaper for polishing and connectors as often as necessary.
If they are single-mode cables that terminate with a connectorized fiber ( pigtail ) cable , follow the same precautions when locating splices or fibers in cable trays and boxes to avoid damage. For 900-micron multimode fibers of tight structure with direct termination in a distribution cable, you must leave a suitable length to store the leftover fibers and avoid tight curvatures as they can cause problems with fiber losses in the future.
Also Read : fiber splicing certification
As with the splices, each connector must be tested when the fiber termination is complete. Check each polished connector with a microscope to make sure the polish was successful. If possible, test each pre-polished connector with a visual fault locator. After both ends of the fiber are finished, point-to-point loss must be proven and everything documented. The connectors with a lot of loss must be terminated again and this saves the time of having to do it when the installer is ready in the work area.
Special care should be taken when putting the splices in the trays and when organizing the underground ducts or fibers in the box. A problem that arises a lot is that the fibers are broken when the trays and boxes are assembled. Finding the fiber breaks inside the box is complicated since they are too close to the joint to resolve them with an OTDR. If the joint is close enough to allow its location with a visual fault locator, the break can be found with a visual inspection.
Termination
At least the termination is usually done inside a building near the telecommunications equipment, either a termination of a wiring of an installation in an external or internal plant. The installer may have trouble finding the right space, for example in a telecommunications room with rows of connection panels and racks. With luck, the cable installer will have stored each of the service cables in a loop to take them to an open area and finish them. Many installers use portable folding tables or carts with wheels to create a work area where they can reach the ends of the cables.
If the building is still under construction, dust can be a problem. Even in finished buildings, air conditioning systems can lift dust. You must check that there is no dust; If it is necessary to work in a dusty environment, clean all tools, granulated sandpaper for polishing and connectors as often as necessary.
If they are single-mode cables that terminate with a connectorized fiber ( pigtail ) cable , follow the same precautions when locating splices or fibers in cable trays and boxes to avoid damage. For 900-micron multimode fibers of tight structure with direct termination in a distribution cable, you must leave a suitable length to store the leftover fibers and avoid tight curvatures as they can cause problems with fiber losses in the future.
Also Read : fiber splicing certification
As with the splices, each connector must be tested when the fiber termination is complete. Check each polished connector with a microscope to make sure the polish was successful. If possible, test each pre-polished connector with a visual fault locator. After both ends of the fiber are finished, point-to-point loss must be proven and everything documented. The connectors with a lot of loss must be terminated again and this saves the time of having to do it when the installer is ready in the work area.
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