5*EYA2U V1.0

Special note: 

 5*EYA2U series optical amplifier is a high-power laser device. The installation and debugging must be performed by professional technicians. Read this manual carefully before operation to avoid damage to the device due to incorrect operation or to cause accidental injury to the operator. 

 When the optical fiber amplifier is working, an invisible laser beam will be emitted from the optical signal output adapter located on the rear panel, and the optical signal output port should be prevented from being aligned with the human body, and the optical output port cannot be directly viewed with the naked eye, so as to avoid the permanent damage to human body and the human eye. 

 Any operation of the output patchcord should be performed in the condition of pump laser turned off, otherwise, the patchcord head will be burnt and the output power will drop. 

 When install the optical fiber moveable connector, the force should be appropriate, otherwise it may cause the ceramic tube in the adapter to crack. Once the ceramic tube is fragmented, the output optical power will be greatly reduced, if the optical fiber connector will rotate slightly, the output optical power will be changed significantly. 

 The factory default pump opening threshold is -12dBm, if the input optical power ≤ -12dBm. The device has no power output. 

 Before the equipment is powered on, it should be confirmed that the grounding terminal of the chassis and the power socket has been reliably grounded (the grounding resistance should be < 4Ω) to prevent the static electricity from damaging the laser device and prevent the chassis from being electrified and causing harm to the human body. 

 In order to ensure long-term stable operation of the equipment, in areas where the grid voltage is unstable or where the voltage waveform is poor, users are advised to configure a dedicated AC power supply for the equipment, users can also configure uninterrupted power supply (UPS) systems if possible. In regions where the ambient temperature is too large or the equipment room environment is poor (the ideal operating ambient temperature of the device is 25°C), it is recommended that the user configure a dedicated air conditioning system for the device to improve the device's working environment.