Wired transmission data service timing interface server

Abstract

The invention discloses a timing interface server of a wire transmission data service. The timing interface server comprises a clock protocol module, a clock protocol measuring module, a power module, a complete machine control module, a management module and an extended function module, wherein the clock protocol module is used for providing time service and clock synchronization frame data, the clock protocol measuring module is used for testing a clock protocol on line, calculating error code situation times, and evaluating a system operation state, the power module is used for converting an alternating current power source into direct current voltage needed by modules, and inputting the direct current voltage to the modules to serve as a direct current supplying power source of the modules, the complete machine control module is used for comprehensively managing a complete machine and providing an interface used for parameter configuration, operating data collection and used for a user to carry out remote monitoring on a DTI Server, the management module is used for the data configuration, operation state checking and remote NTP time synchronization, and the extended function module is used for receiving an external signal and utilizing the received signal as a time service benchmark of the complete machine for the time service. The timing interface server is high in integration density and stability, easy to configure, and suitable for clock synchronization and the time service in the wire transmission data service network.

Description

technical field [0001] The invention relates to the field of wired transmission data services, in particular to a wired transmission data service timing interface server DTIServer, which is suitable for clock synchronization and timing in the wired transmission data service network. Background technique [0002] DOCSIS is a cable transmission data service interface specification (DataOverCableServiceInterfaceSpecification) applied to the HFC network promulgated by CableLabs, a major cable TV operator and research institution in the United States; DTI refers to DOCSISTimingInterface, the timing and clock synchronization interface defined in the cable transmission data service interface specification ; DTIServer refers to the timing interface server for wired transmission data services, which is deployed in the M-CMTS network to transmit reliable and accurate time and clock synchronization. DTIServer is the basic frame part of cable user data transponder or network hub, which ...

AI Technical Summary

Problems solved by technology

Therefore, this solution cannot be deployed in the current M-CMTS and DOCSIS3.0 systems

[0005] 2. This technology does not have a DTI cascading port and cannot be connected to the DTI root server to extract the clock of the root server and expand the DTI client port. It cannot be deployed in large-scale M-CMTS and DOCSIS3.0 systems

[0006] 3. This technology does not include the dual backup of the clock timing module, which cannot meet the stability requirements of the carrier level of the equipment, and cannot be applied and commercially used in M-CMTS and DOCSIS3.0 systems

[0007] 4. This technology does not include the dual backup of the power module, which cannot meet the stability requirements of the carrier level of the equipment, and cannot be applied and commercially used in M-CMTS and DOCSIS3.0 systems

[0008] 5. In this technology, there is no online monitoring function for frame errors, but in the CM-SP-DTI-I05-081209 agreement, the frame error rate threshold index and the related processing mechanism after the frame error rate exceeds the standard are strictly stipulated. Therefore, This solution cannot be applied and deployed in existing M-CMTS and DOCSIS3.0 systems

[0009] 6. This technology does not have a dual-mode port, and the loopback test of the system cannot be performed

[0010] 7. This technology does not support the 200-meter connecting cable specified in the CM-SP-DTI-I05-081209 protocol. When the cable is longer, the DTI client signal cannot be received and decoded correctly

[0011] 8. This technology does not have GPS extension function, and cannot receive GPS clock signal as the clock source of time service

[0012] 9. This technology does not have the GPS extension function. When multiple DTI servers are deployed in different computer rooms in M-CMTS and DOCSIS3.0 systems, the clock synchronization between each DTI server cannot be performed.

[0013] 10. This technology does not have the NTP service function. When multiple DTI servers are deployed in different computer rooms in M-CMTS and DOCSIS3.0 systems, or when multiple DTI servers are deployed in the same computer room, the clock synchronization between each DTI server cannot be performed.

[0014] 11. This technology does not have a remote monitoring interface and cannot be integrated into the central network management system in the M-CMTS and DOCSIS3.0 systems. The network management system will not be able to configure and monitor the operation of the DTI server

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