Be ware of Unnecessary ActiveStandby SCC Switching on OSN 3500&7500

Abstract Because 3.3 voltage detecting circuits of SSN1GSCC02 and SSN3GSCC02 boards are of low precision, unnecessary active/standby SCC switching occurs, resulting in a possibility that NEs are unreachable to the NMS. If the ASON feature is enabled on NEs, data configuration may be lost during the active/standby SCC switching. [Problem Description] If the following conditions… Read More »

Be care for SS49SCB Boards DIP Switch on Certain Sets in the Installation State Problem

Abstract: After certain sets of huawei transmission equipment OptiX Metro 1000 V3 (SS49SCB VER.B) restart upon power failure, the SW1,SW2 DIP switch of the NE is in the installation state. As a result, the NE configuration is missing, and the services are interrupted. [Problem Description] Trigger conditions: The OptiX Metro 1000 V3 (SS49SCB board) restarts… Read More »

Notice of Flash Memory Failure in WDM Products

Summary: Because of defective incoming materials, the Spansion Flash memory units provided in a specific lot cannot erase Flash memory data. Huawei  transmission boards equipped with these Flash memory units occasionally encounter a software uploading failure, patch upgrade failure, or log recording failure; or the boards sometimes reset unexpectedly or fail to boot from a… Read More »

Troubleshoot Link STM-64 using BPA and DCU in OSN 7500II

Background How to troubleshoot link STM-64 in Huawei transmission equipment OSN 7500II using BPA and DCU because although have followed the theory guidance about power input range below , but there always find alarms B2_SD, B1_SD_B2_EXC, MS_RDI, R_LOF appears in its link (by NMS U2000) Link information and BPA specification1. Link : STM-64 2. Board : SLD64 3. Distance :… Read More »

Pay attention for the Software Version Compatibility Issue in OptiX OSN 1800

Summary: For Huawei transmission equipment OptiX OSN 1800 V100R003C01SPC200 ( or an earlier version, services on the TNF2LQM or TNF2LDGF2 board that uses the service chip of version V110 will be unavailable after the board is initialized because of a bug. The problem can be resolved by upgrading the OptiX OSN 1800 to V100R003C01SPC300 (… Read More »

Huawei Ascend Mate7 starts sale in China

Huawei formally launched its latest large-screen flagship smartphone Ascend Mate7, and Ascend P7 of sapphire version and Ascend G7 to the domestic market, the prices of Mate7 standard version and high-end version are 2999 yuan and 3699 yuan respectively. Huawei’s consumer BG CEO Richard Yu once declared in his blog, “Huawei has put extremely high R&D… Read More »

Cations for the Cable of the OptiX OSN 8800 Fan Assembly Is Incorrectly Connected

Summary: Under certain circumstances, a batch of fan assemblies of the Huawei Optical transmission OptiX OSN 8800 T32 or T64 intelligent optical transport platform have a speed regulating problem in high temperature. [Problem Description] When the version of the fan board is changed according to the requirement, the layout and cabling engineer modifies the slot… Read More »

Be Ware of Services Interruption on OptiX OSN 3500

Summary: On a port of an SSN1PEG16 or SSN1PEX1 board of a version earlier than V200R011C03SPC100, both LAG and CAR are enabled. After the board is upgraded to a version between V200R011C03SPC100 and V200R013C10SPC100 (itself excluded), the board is repeatedly reset due to a software bug. As a result, services are interrupted. [Problem Description] Trigger… Read More »

What will happen if you falsely match Software Package with OSN 8800 Platform Subrack

Summary: When an Huawei OptiX OSN 8800 platform subrack is falsely connected to the master subrack of V100R006C01SPC100, SPC200, SPC300, or SPC500 version as a slave subrack, the master subrack will automatically match the software package for the slave subrack. As a result, the TN15AUX board in the OptiX OSN 8800 platform subrack resets repeatedly and… Read More »