Nominal single-wavelength input optical power of the OSN 6800 HBA board in a 40-wavelength system

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The nominal single-wavelength input optical power of the HBA board in the OSN 6800 is as follows:
-22 dBm (in an 80-wavelength system)
-19 dBm (in a 40-wavelength system)
-13 dBm (in a 10-wavelength system)

Other related questions:
Nominal single-wavelength input optical power of the TN12OBU1 board in a 40-wavelength system
The nominal single-wavelength input optical power of the TN12OBU1 board in a 40-wavelength system is as follows: �?0 dBm for TN12OBU101 �?9 dBm for TN12OBU103 �?7 dBm for TN12OBU104

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.

Nominal single-wavelength incident optical power of an 80-wavelength system
The nominal single-wavelength incident optical power is 1 dBm for an 80-wavelength system.

Nominal single-wavelength input optical power for OA boards on BWS 1600G?
Suggestion: What is the nominal single-wavelength input optical power is determined for OA boards of the BWS 1600G? Answer: Strictly speaking, there is no definition of nominal single-wavelength optical power for OA boards. The optical power is determined as follows: To increase the signal-to-noise ratio, the incident optical power and receive optical power must reach the maximum as possible. A 400G OAU board is used as an example. The maximum incident optical power is 20 dBm and 40 wavelengths are supported. Therefore, the maximum single-wavelength output optical power is 4 dBm. The BA gain is 19 dB, and therefore the single-wavelength input optical power of the BA board is defined to -15 dBm. A VOA and DCM need to be added between PA and BA boards, the minimum VOA attenuation is 3 dB, and the maximum DCM attenuation is 12 dBm. Therefore, the minimum single-wavelength output optical power of the PA board is as follows: -15 + 12 + 3 = 0 (dBm). The C-band gain is 20 dB and the L-band gain is 19 dB, and therefore the maximum single-wavelength input optical power of the PA board is -19 dBm. The attenuation of the maximum span is 36 dB, and therefore the minimum single-wavelength input optical power of the PA board is as follows: 4 - 36 = 32 (dBm). Varying with span reaches, the single-wavelength input optical power of the PA board ranges from -32 dBm to -19 dBm. The gain of a PA board embedded with a Raman amplifier (OAU_R) is 10 dB, and therefore the single-wavelength input optical power is -9 dBm.

Relationship between single-wavelength input optical power and single-wavelength output optical power
Single-wavelength output optical power = OA gain + Single-wavelength input optical power

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