Whether the 100 G WDM equipment can use the OTDR to detect fiber cuts

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The equipment supports the FD since V100R009. This function requires the TN12ST2 and TN13FIU boards, U2000 license, and MDS 6630.

Other related questions:
Whether 100G WDM equipment can use the OTDR to detect fiber cuts
If the user has not logged in to the device, check whether the line OTDR breakpoint detection function is enabled for the 100G systems of the OSN 9600 and OSN 8800. The OSN 8800 is used as an example here. The OSN 8800 supports the fiber doctor (FD) since V100R009. This function requires the TN12ST2 and TN13FIU boards, and U2000 license, and MDS 6630. The U2000 license supports the control item of this function.

Whether the corresponding fiber on the NMS turns red after a fiber cut occurs on WDM equipment
If logical fiber connections are correct and a fiber cut occurs on WDM equipment, the corresponding fiber on the NMS will turn red.

Whether G.652B fibers can be used on DWDM networks
All G.652 fibers can be used on DWDM networks, regardless of whether the fibers are G.652 A, B, C, or D. The most commonly used fibers are G.652D fibers, which have a better attenuation coefficient than G.652B fibers.

Method used to determine whether optical fiber connections are correct between a router and a WDM board on the client-side of WDM equipment
Disable the ALS function for the client-side laser of the WDM board and enable the laser to forcibly emit light. If the optical port on the router receives optical signals, the optical fiber in the transmit direction is correctly connected. Stop the router from emitting light. If the WDM board reports an R_LOS alarm, the optical fiber in the receive direction is correctly connected.

Whether G.652 fibers can be used for NS4 boards
G.652 fibers can be used if the door of the cabinet housing the NS4 boards can be properly closed.

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