After the application report is approved, the preparation before cutting is particularly important. We should make full preparations before cutting, mainly reflected in the following aspects.

1) Collect and organize the original information of the line.

2) Familiar with the performance parameters of the cutting section with the performance of the transmission equipment, such as light power and loss of loss.

3) Check whether the laying of the new optical cable is safe and reasonable, and test and confirm the parameters of the optical cable.

4) Check the cutting equipment and tools and communication tools to ensure that the use of various instruments is normal.

5) On -site verification of the cutting scheduling scheme, check whether the cutting site changes, whether the equipment in the computer room and the tail fiber have changed.

6) The cutting group arrived at the cutting site 2 hours before the cutting group to make preparations, excavated the operation pit and connecting pits, including checking the cutting lines that were cut off, doing on -site protection and various security measures, and right -handed measures and right -handed measures. The new optical cable is stripped. The specific location and depth of the direct -buried optical cable application routing detectors are detected. For overhead optical cables to do a good job of reserved optical cables. Check and set up the continuation tools to check whether the communication method is unblocked.

7) Each test team arrived at the scene 1 hour in advance to confirm the ODF stand position, identify the tail fiber, and re -examine the fiber and scheduling fiber. Check the power supply and lighting of the machine room, contact the network management center and the cutting point, confirm that the connection tool is intact, and make all preparations.

8) Call all cut personnel 4 hours before cutting to hold a special meeting with business cutting to further report on the operation steps of the cutting scheme. matter.