Sichuan Ziguang Photoelectric Technology Co., Ltd.

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Current Location：Home>News Center Co., Ltd.>How to handle frequent alarm of amplifiers (such as over-temperature and over-current)?

0816-2384466

How to handle frequent alarm of amplifiers (such as over-temperature and over-current)?

2025-09-29

Possible Cause 1: Poor heat dissipation (e.g., amplifier fan failure, or installation environment temperature too high, exceeding the working temperature limit, typically -5~55℃); Solution: Check if the fan is rotating normally, clean the heat sink dust, or improve the installation environment (e.g., increase ventilation, lower the environmental temperature).
Possible Cause 2: Input power too high (exceeding the amplifier's "maximum input power," e.g., EDFA maximum input power is -10dBm; if the input is 0dBm, it will trigger overcurrent protection); Solution: Connect a "light attenuator" in series before the amplifier to reduce the input power to a safe level (e.g., from 0dBm to -20dBm).
Possible Cause 3: Power Supply Failure (e.g., excessive input voltage fluctuations, exceeding the rated range (usually 220V±10%)); Solution: Inspect the power lines, add a "voltage stabilizer," and ensure stable input voltage.

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Sichuan Ziguang Photoelectric Technology Co., Ltd.

Service Hotline 17381698682

Company Phone 0816-2384466

Company Address No. 218 Wenwu Middle Road, Tangxun Town, Economic and Technological Development Zone, Mianyang City, Sichuan Province (Electronic Manufacturing Industrial Park), Building 16, 3rd Floor

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