Techwin (China) Industry Co.,td

Techwin tw3303 optical fiber variable attenuator. use in the digital system of communication devices (such as: phd, sdh) and also in the system of adopting analog modulation (cat the perfect handhold tester series optical variable attenuator tw3303 tw3303 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, thereforetw3303 can be used in the digital system of communication devices (such as: phd, sdh) and also in the system of adopting analog modulation (catv) applicationtelecom maintenancecatv maintenancecomprehensive cable construction systemoptical instruments research and developmentoptical communication education and lab testingother optical project featuresstepwise attenuating by circumgyrated dial: attenuating step 0.05dbprovide with the function of displaying db and dbm attenuating valuealternative function of 10 minutes auto-off without operationafter 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.