Protection requirements

This content introduces the version, function, principle, panel, and technical specifications of Huawei OSN3500 SSN1BPA (1-channel power amplifier and 1-channel preamplifier board).The functional versions of OSN3500 BPA single boards are N1 and N2, and this content introduces the version, function, principle, panel, and technical specifications of BPA (1-channel power amplifier and 1-channel preamplifier board). When the optical signal is transmitted over a long distance, the signal attenuation is more, in order to make the optical receiver receive the normal optical signal, it is necessary to add the optical power amplifier board (BA) and preamplifier board (PA). The veneer characteristic code is the code located after the veneer name in the veneer barcode. The single-board characterization code of the Huawei transmission BPA is used to describe the output optical power of the optical interface.
Huawei OSN3500 SSN1BPAApplications
The Huawei N1BPA consists of two EDFA optical modules, and the N2BPA consists of one EDFA optical module, which is used to generate an optical amplification effect.The BPA single board is an optical power amplification and preamplification board, which provides one channel of power amplification (BA) and one channel of preamplification (PA), and is applied to the transmitter and receiver of the OptiX OSN device, respectively. The position of BA and PA in the optical transmission systemAsshown inFigure 1.

| Item | Description |
|---|---|
| Functional Versions | The BPA single board has two functional versions, N1 and N2. |
| Differences | N1BPA consists of 2 EDFA optical modules and N2BPA consists of 1 EDFA optical module. |
| Substitutability | Conditional substitution is possible between the two versions. When the ALS function is to be used, the ALS function needs to be set on the optical amplifier board when replacing N1 with N2, and the ALS function needs to be set on the line board when replacing N2 with N1. If the ALS function is not used, there is no such restriction. |
Version matching relationship
| Single Board | Starting version |
|---|---|
| SSN1BPA |
V100R001 |
| SSN2BPA |
V100R008 |
Relationship between OSN3500 BPA Single Board Characteristic Code and Output Optical Power
| Single Board | Characterization Code | Description |
|---|---|---|
| ssn1bpa01、ssn2bpa01 | SSN1BPA01, SSN2BPA01 |
BA module output optical power: 14dBm |
| SSN2BPA02 | 02 |
BA module output optical power: 14dBm |
| SSN1BPA02 | 02 |
BA module output optical power: 17dBm |
| SSN1BPA03 | 03 |
BA module output optical power: 17dBm |
Huawei OSN3500 SSN1BPATechnical specifications
BPA single-board metrics include optical interface metrics, laser safety level, mechanical metrics, and power consumption.
Huawei OSN3500 SSN1BPAOptical interface metrics
| Item | Indicator Value |
|---|---|
| Input wavelength range (nm) |
BA: 1530~1565 PA: 1550.12 |
| Input optical power range (dBm) |
BA: -6~+3 PA:
|
| Output optical power range (dBm) |
N1BPA: +14 to +14.5 or +17 to +17.5 (BA) N1BPA: -22 to +15 (PA) N2BPA: +14 to +14.5 (BA) N2BPA: -22 to +23 (PA) |
| Noise index (dB) |
BA: <6.5 PA: <6 |
| Minimum Signal Gain (dB) | 22 |
When the BPA preamplifier does loopback, pay attention to the range of input optical power to avoid damaging the optical module.
Laser Safety Level
The single-board laser safety level is CLASS 1M, and the maximum output optical power of the single-board optical port is between 10dBm (10mW) and 22.15dBm (164mW).
Mechanical Specifications
The mechanical specifications of the BPA veneer are as follows:
Huawei OSN3500 SSN1BPAPower consumption
The N1BPA single board has a maximum power consumption of 20W at room temperature (25°C).
The N2BPA single board has a maximum power consumption of 11W at room temperature (25°C).