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The OSN3500 SSN1SXCSA is a super-crossover clock board that provides service scheduling, clock input and output, and other functions in the OptiX OSN 3500 system. The single board supports functions and features such as service scheduling, clock input and output. The single board consists of a synchronous timing module, a cross-connect module, a communication and control module, and a power supply module. The single board needs to be inserted in the corresponding slot of the subrack as required, otherwise the single board cannot work normally. There are no dial codes and jumpers on the single board for single board setup. The panel of the veneer has veneer indicators and bar codes.The N1SXCSA supports the veneer compatible replacement function, which can replace the N1EXCSA or N1UXCSA veneer. After replacement, the configuration and service status of the N1SXCSA veneer board remain the same as the N1EXCSA or N1UXCSA before replacement.
Basic Functions
- High-order crossover capacity: 200Gbit/s
- Low-order crossover capacity: 20Gbit/s
- Access capacity: 155Gbit/s
- Provide flexible scheduling of services, support non-blocking full-crossover, multicast and broadcast services.
- Provide communication function with other single boards.
- Supports microswitch to realize smooth protection inversion of cross board.
- Supports SNCP protection at VC-4-4c, VC-4-8c, VC-4-16c, VC-4-64c, VC-4, VC-12, VC-3 and AU-3 levels.
- Supports VC-4-4c, VC-4-8c, VC-4-16c and VC-4-64c cascading services.
- Supports up to 40 linear multiplexing segment protection groups.
- Supports up to 12 ring multiplexing segment protection groups.
- V100R010C02/V100R010C03: Supports up to 2016 SNCP protection pairs.
- V100R010C00/V100R010C01: Supports up to 1184 SNCP protection pairs.
- Supports up to 592 SNCMP protection pairs.
- Supports up to 512 SNCTP protection pairs.
The OSN3500 SSN1SXCSA fails to meet the low-order crossover capacity and fails to send low-order services during the project opening phase because the logical board of the SXCSA veneer is configured as EXCSA, and the failure is resolved by reconfiguring the logical board as SXCSA. The logical board type does not match the type of the veneer on the actual network element. Incorrect configuration of the clock source priority table all leads to service failure.
Products
OptiX OSN 3500
Failure Category
Cross-unit
Phenomenon Description
During the opening phase of the project, the cross board of the OptiX OSN 3500 equipment in each bureau is N1SXCSA, but by querying the logical single board of each equipment through the network management, some bureaus show that the cross board is N1EXCSA, which leads to the failure of sending some low-order cross services of this equipment because the low-order cross capacity of N1EXCSA is lower than that of N1SXCSA.
Cause Analysis
- The physical veneer was not queried at the beginning of the opening of the bureau, but the veneer was added manually as a result.
- Host version mismatch.
- Veneer failure.
Operation Steps
- Query the network management operation record. The opening is completed at the beginning of the opening by querying the physical board position and checking the opening, and is not added manually.
- Query the cross-board single board software for: 7.11, host software for 5.21.18.12, version matching.
- The network management on the main and backup cross board EXCSA for reversing test, reversing normal.
- Delete the 10-slot spare cross board on OptiX OSN 3500 and manually add it as SXCSA, the alarm of the main control board shows: WRG_BD_TYPE, and the alarm of the 10-slot shows: the installed veneer is not the same as the actual veneer.
- Soft reset the SXCSA veneer in slot 10, the veneer works normally.
- The master and backup are reversed. Refer to steps 4 and 5 to complete the addition operation of the SXCSA veneer in the master board slot.
Reference Information
The SSN1SXCSA supports the single board compatible replacement function.
The technical information in this chapter and the related SDH equipment troubleshooting procedures are provided by Shenzhen Optical Transmission Network Technology Co. Huawei SDH optical transmission equipment, SDH transmission equipment sales phone: 13430988088 Welcome to call!
