# Input optical power range of the OLP board

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TN11OLP01: �?5 dBm to +7 dBm (single-mode)
TN11OLP02: �?5 dBm to 0 dBm (multi-mode)
TN12OLP01: �?5 dBm to +7 dBm (single-mode)
TN12OLP03: �?0 dBm to +23 dBm (single-mode)
TN12OLP04: �?2 dBm to +23 dBm (single-mode)

###### Other related questions:
Whether the CRPC board has a range of the receive optical power
Raman boards such as CRPC have no restriction on the receive optical power and therefore do not have a range of the receive optical power.

Calculation of the total input optical power of an OA board
The total input optical power of an OA board can be calculated using the following formula: Total input optical power = Single-wavelength nominal input optical power + 10lgN (N: number of in-service wavelengths).

Receive optical power range of the CMR4 board
The CMR4 board is an optical device. There is no requirement on the receive optical power range of the board.

Receive optical power range of 2.5G optical ports on TOM boards
Conversion between SNCP protection types is not allowed. You need to convert the SNCP service into a common service, and convert the common service into the desired type of SNCP service.

Single-wavelength input optical power range and nominal single-wavelength optical power of the OBU101 board on the OSN 6800
The single-wavelength optical power range is �?2 dBm to �?0 dBm, and the nominal single-wavelength optical power is �?0 dBm. The receive optical power depends on the number of added wavelengths.

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