1 in the cable must be checked before cutover cutover cable connector location and whether the core design, this should be done in the review route. As the tube may have a lot of underground cable, the design of the connector to the cutover at the tube wells may not be used in this joint project, so be sure to carefully review the routing, the main cable at the cutover to determine a good number with the design of the main cable on the side of the room number are consistent with the design to determine the location of the connector cable cutover is accurate, pre-cutover cable must be prepared the feasibility report.
2 cable cutover preparation, because cable is a time-limited cutover preparation work to do, good or bad often affect the length of time cutover, tools are required to complete with the materials. Staff must approach at least an hour early, put on the connector box and open, to determine the backbone of this cutover cable core, open-access fiber optic cable stripping and pre-order stationary and other cutover work.
3 splice, the splice must be designed in strict accordance with the chromatographic sequence corresponding to the direction of core follow.
4 test, test before the test and then split after cutover testing, cutover at the cutover site to do the preparatory work must be arranged into the terminal personnel to test, cutover testing purposes before the site was re-affirmed the trunk with the cutover cutover cable core is accurate, correct only when both ends are identified, we can disconnect the cutover of the required core, fiber cut even after the test may be affected core is normal to avoid operation errors and lead to greater consequences; test after cutover to pay attention to whether the corresponding core and core routing is accurate, splice loss, line attenuation, etc. must meet the design requirements and make a record.
5 on-site cleaning, when the project to be cleared after the cutover site, do not affect the city, road cleaning and other issues, so as to avoid affecting the company's image.
1 cutover plan. Draw network topology, device connection diagram, etc., to determine the program for the cutover to prepare.
2 draw after cutover the network topology, device maps to prepare for cutover time reference.
3 steps to write a detailed cutover, implementation steps, the system changes and configuration steps and each step back programs; the cutover process and the time spent has clearly arranged; the person in charge of the process and arrangements for construction workers lists; made it clear that the main points of the process operation and precautions; ready to use the equipment, instruments, materials list.
4 to determine cutover charge: to determine the person in charge of the system cutover side, the manufacturers responsible, person in charge of the construction side, the larger the project if the cutover, but also the person to write a clear division of labor.
5 cutover time to determine: application to the higher authorities of the time cutover outage Road, the applicant should have sufficient margin of time; have a greater impact on the communication network, and should also schedule other circuits as a transitional use.
6 cutover exception handling: make the appropriate contingency plans and prepare the appropriate spare parts.
7 reported the construction unit cutover program authorities for approval before implementation, the competent authorities to organize the relevant departments of the best officers of the cutover plan for strict joint trial.