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OSN3500 SSN3EGS2 single board is an Ethernet switching processing board, which is mainly used to solve the telecommunication application areas such as Ethernet service access, bandwidth management and Layer 2 switching of Ethernet services.The single board supports Layer 2 switching, MPLS, multicast and other functions and features.The single board consists of an Ethernet access module, a network processing module, a mapping module, an interface conversion module, a logic control module, a clock module, and a power supply module.The panel of the single board has single board indicators, interfaces, bar codes and laser security levels.The veneer needs to be inserted in the corresponding slot of the subrack as required, otherwise the veneer cannot work properly.The functional versions of the EGS2 veneer are N2 and N3. The veneer cannot work properly due to the difference between the optical module mode and the fiber mode of the veneer configured for the service. Therefore, when selecting a single board, pay attention to the modes of the single board's optical module and optical fiber.
OptiX Products
OptiX OSN 3500
Fault Category
Other
Phenomenon Description
The SSN1EGS2 board of OptiX OSN 3500 equipment is configured with services, and one single board can work normally, while the other single board cannot work normally. Check the transmit optical power and find that the transmit optical power of the single board that can work normally is -9dBm, and the luminous power of the single board that cannot work normally is -28dBm.
Cause analysis
SSN1EGS2 single board can work, while the other can not work. It may be a single board optical port type and fiber type with the problem.
Steps
- Check the model of the single board and find that the model of the single board that can configure services is SSN1EGS211, and the model of the single board that cannot configure services is SSN1EGS210, and the models of the two single boards do not match.
- Check the optical interface indicators, SSN1EGS210 luminous for -9.5dBm, sensitivity -17dBm, overload point is not required, the operating wavelength of 850nm, for the multi-mode optical port. SSN1EGS211 luminous for -9dBm, sensitivity -20dBm, overload point is not required, the operating wavelength of 1310nm, for the single-mode optical port.
- Check the pigtail, found that the use of single-mode pigtail, the SSN1EGS210 pigtail replacement for multimode pigtail, send optical power is normal, the business send and receive normal.
Reference information
None.
The technical information in this chapter and the related SDH equipment troubleshooting procedures are provided by Shenzhen Optical Transmission Network Technology Company Limited (www.opticaltrans.com), please retain. Huawei SDH optical transmission equipment, SDH transmission equipment sales phone: 13430988088 Welcome to call!
