Whether LOG boards can work with OLP boards to form protection between different channels

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Yes. LOG boards can work with OLP boards to form extended intra-board 1+1 protection or client 1+1 protection.

Other related questions:
Whether the working and protection channels must be fixed when the OLP board is used to configure OLP protection
When the OLP board is used to configure OLP protection, the working channel must be the optical port 1 (RI1/TO1) of the OLP board and the protection channel must be set to optical port 2 (RI2/TO2). Otherwise, the OLP protection group cannot work normally.

OLP protection implemented by TN11OLP01 or TN12OLP01
OLP can be classified into OTS OLP protection and OMS OLP protection. Whether TN11OLP01 or TN12OLP01 boards can be used to form OLP depends on the input optical power values of optical ports RI1 and RI2 on OLP boards. If the input optical power values of both optical ports RI1 and RI2 on OLP boards do not exceed 7 dBm, TN11OLP01 or TN12OLP01 boards can be used to form OTS OLP protection. In the OMS OLP protection scenario, the input optical power values of optical ports RI1 and RI2 are prone to exceed the maximum optical power (+7 dBm) of the TN11OLP01 and TN11OLP02 boards. Therefore, TN11OLP01 or TN12OLP01 boards cannot be used in this scenario.

Ports corresponding to the working and protection channels on the OLP board of BWS 1600G devices
On the OLP board, the TO1/RI1 port is configured as the working channel and the TO2/RI2 port is configured as the protection channel.

Ports corresponding to the working and protection channels on the OLP board of BWS 1600G
On the OLP board, the TO1/RI1 port is configured as the working channel and the TO2/RI2 port is configured as the protection channel.

Methods for checking the difference between the receive optical powers of the working and protection channels on the DCP board
In the NE Explorer > DCP Configuration > WDM Interface to check the current receive optical power on the working and protection channels of the DCP board to confirm the difference.

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