【Answer】1. ABCDE 2. A 3. BC 4. C 5. A
【Winner】DKetrari, umaryaqub, pct12, thibay, kita
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Hello, everyone!
Join the Community Learning week Transmission&Access Maintenance Basics topic!
Network class learning time of this phase: Jun 14th - Jun 18th.
Answer time of this class: Jun 15th, 2 AM - Jun 16th, 10 AM (UTC+0)
Class topic
Post 1. SOP for Routine Maintenance of WDM and MSTP Products
The Standard Operating Procedure (SOP) is a set of written instructions that document a routine or repetitive activity to be followed. That's what every technical worker needs to know...More
Post 2. Tools Required for ULH System O&M
The ultra-long-haul (ULH) single-~span transmission solution is mainly used in long-haul unre-generated transmission scenarios. For example, ultra-high voltage (UHV) powertransmission communication Systems and some transoceanic communication Systems need to Support ultra-long span communication...More
Post 3. Fast Fault Recovery of MSTP Raman Links for ULH System O&M
During the operation and maintenance of the ULH system, the operation of the Raman line must be highly short-sighted. Otherwise, equipment, optical fibers, and even personnel may be injured...More
Post 4. WDM NE Running Status Check
WDM network maintenance involves regular check of the running status of NEs to identify and handle potential risks in advance to ensure stable and secure running of the equipment...More
Post 5. OSN 9800 Heat Dissipation and Routine Maintenance
To meet the heat dissipation requirements of large-capacity services, the OSN 9800 U series uses Huawei-patented -shaped air channels to eliminate the multi-layered heat accumulation problem, reduce fan power consumption,further decrease the working temperature of boards, and reduce chip power consumption.
This greatly improves heatdissipation efficiency and can meet the service requirements of 400G/1T/2T per slot in the future...More
Class Questions
After attending this class, please answer the following questions and comment with the answers below this post.
1. (Multiple-Choices Question)What are the check items of the OTN routine maintenance SOP?
A. Equipment status check
B. System security check
C. Alarm analysis and clearance
D. Device load evaluation
E. Topic analysis
2. When using OTDR to test optical fiber, in order to make the results more accurate, a 2-5 km import fiber needs to be connected between the meter and tested link during the test Ensure that the fiber type is the same as that of the tested link.
A. True
B. False
3. (Multiple-Choices Question)What are the overall guideline for fast fault recovery?
A. In order to recover the communication quickly, the fault can be removed when the Raman laser is on.
B. Thelaseronthe Raman board must be shut down before any operation is performed on site.
C. To preventfiber burning during the operation, turn on the laser on the Raman board after all operations are completed.
4. Check whether the optical power of OA boards changes when the number of Wavelengths in the system remains the same. If there is a change, ensure that the change within 24 hours is less than .
A. ±3 dB
B. ±2 dB
C. ±1 dB
5.Do not attach papers (label paper or drawing) to the air intake vent of the cross-connect board area on the OSN 9800. Otherwise, the heat dissipation of devices will be abnormal.
A. True
B. False
Hope you get good grades, come and enjoy this learning party! ![Network class - Jun 15th [Community Learning Week • Phase 3]-3970955-2](https://forum.huawei.com/community/static/nopack/UEditor/dialogs/emotion/images/tsj/t_0003.gif)
Click to learn the previous lesson: >>> Network Routing&Switching NE technology topic.
