When all fibers have been connected in the plate fiber box, the rack alarm lights and CD warning lights disappear, and after being confirmed by the network management center, the box can be sealed. You should also pay attention to the following issues in the box work:

1) Direct buried optical cable joint box should be installed and monitored the tail cable, sealed the connector box, buried in the connecting pit that was dug in advance, and did a good job of reserving the optical cable disk. After installing the overhead optical cable joint, it should be fixed on the electric pole to do the installation of the reserved basket and the reserved turbopic work reserved by the optical cable.

2) In the process of installing the joint box, the testers should do a good job of monitoring and analyze whether the fiber is attenuated during the installation of the connector box.

3) When the personnel of each cut point are fused and safely placed in the plate fiber plate, the test staff of the computer room should be notified to test the test before the box. After the joint box is sealed, the computer room tester should test again. When the joint box is buried in the joint pit or fixed on the electric pole, the computer room tester should also test the changes in the fiber attenuation parameters at all times.

4) After all the cutting operation is completed, contact the network management center to confirm that there is no abnormalities, then count the tools and instrument evacuation scene.