Submarine Cable Lines

The submarine communication system carries transoceanic services of a large capacity. Currently, it is the stablest transoceanic communication transmission solution. Lines in the submarine communication system refer to bidirectional service transmission channels carried by submarine cables. The system mainly includes submarine equipment such as SLTE, SLM, submarine cables, branching components, and repeaters.

Submarine Cable Lines on the U2000 Web LCT

An actual submarine cable is connected to the submarine cable line monitor by using the line monitor interface (LMI) board.

For the SLM 1630 V100R001, this line is identified by the line that consists of ports of the LMI board, line selection unit (LSU), line optical amplifier (LOA) board, and line monitoring unit (LMU). For details, see Figure 1.
Figure 1 Diagram of the submarine cable line
For the SLM 1630 V100R002, functions provided by LOA and LSU boards are incorporated with B2LAS boards. For details, see Figure 2. The U2000 Web LCT supports visualized management of bidirectional lines of underwater devices and cross-span fibers.
Figure 2 Diagram of the submarine cable line

NOTE:
For the SLM 1630 V100R002:

When the port of OADM BU is used to add/drop wavelength, only unidirectional lines can be managed on the port.

You need to create a line group on the U2000 Web LCT for the actual submarine cable as the managed object, to measure and analyze the line data and to monitor the working status of the line.