Оптический аттенюатор переменной

Specification: MW3303 handhold optical variable attenuator is used for continuously variable optical signal attenuation. As the attenuator is used in the laser system for the on-line testing, there, thereforeJW3303 can be used in the digital system of communication devices (such as: PHD, SDH) and also in the system of adopting analog modulation (CATV) Application Telecom Maintenance CATV Maintenance Comprehensive cable construction system Optical instruments research and development Optical communication education and lab testing Other optical project Features stepwise attenuating by circumgyrated dial: attenuating step 0.05dB Provide with the function of displaying dB and dBm attenuating value Alternative function of 10 minutes Auto-off without operation After off the instruments, the system will have the memorizing of the attenuating value and the attenuating step, in order to restore the system back to the previous shut down state when open the instruments next time Type MW3303Attenuating wavelength Range 1260 1650nmFiber Model9/125um SMOptical ConnectorFC/PCCalibrated wavelengths1310/1490/1550/1625Measurement Range2.5 60dBResolution0.05dBMinimize Insertion Loss2.5dBLinearity0.5dBRepeating0.2dBAttenuating Accuracy0.8dBBack Reflection≈35dBtypical value40dBMax input∠20dBmDisplaying typelattice 128*64 black and white, white back ground lightRechargeable batteries7.4VPower supply adaptor7 8.5VOperation temperature0 40Storage temperature-10 60humidity0 85%non- condensationWeight450g