JOINWIT JW3303 Optical Variable Attenuator

Product name Optical Variable Attenuator Product mode JW3303 Applicapions Telecom Maintenance CATV Maintenance Comprehensive cable construction system Optical instruments research and development Optical communication education and lab testing Other optical project JW3303 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, therefore, JW3303 can be used in the digital system of communication devices ( such as: PHD, SDH) and also in the system of adopting analog modulation ( CATV) Main Features stepwise attenuating by circumgyrated dial: attenuating step 0.05dB Provide with the function of displaying dB and dBm attenuating value. 10 minutes Auto-off function can be activate and deactivate with keypad 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. Portable, rugged, lightweight; Easy to use. Applications Telecom Maintenance. CATV Maintenance. Comprehensive cable construction system. Optical instruments research and development. Optical communication education and lab testing. Other optical project. Specifications Type JW3303 Attenuating wavelengthRange 1260~ 1650nm Fiber Model 9/ 125um SM Optical Connector FC/ PC Calibrated wavelengths 1310/ 1490/ 1550/ 1625nm Measurement Range 2~ 60dB Resolution 0.05dB Minimize Insertion Loss  2.0dB Linearity 0.5dB Repeating 0.2dB Attenuating Accuracy 0.8dB Return Loss at Input/ Output  35dB typical value40dB Max input 20dBm Displaying type lattice 128* 64 black and white, white back ground light Rechargeable batteries 8.4V Power supply adaptor 8.4V Operation temperature 0~ 40 Operation Time 40 hours Storage temperature -10~ 60 humidity 0~ 85%  non- condensation Dimensions 180X90X36.5 Weight ( g) 427 Standard Packages MODEL INCLUDES JW3303 JW3303 Main Body, Protective Rubber Boot, Rechargeable battery, Power Supply Adaptor, Instruction Manual and Cotton Swabs and Rigid hard carrying case.