Handheld Variable Optical Attenuator
Handheld Variable Optical Attenuator Handheld Variable Optical Attenuator Handheld Variable Optical Attenuator Handheld Variable Optical Attenuator
JW3303

Handheld Variable Optical Attenuator

Optical attenuation for fiber communication and laser system testing

The JW3303 handheld variable optical attenuator provides continuously adjustable optical signal attenuation for field and laboratory testing. This attenuator is commonly used for in-line testing of laser systems, and is also suitable for digital communication systems such as PDH and SDH, as well as analog-modulated systems such as CATV. Its rotary control allows attenuation to be adjusted in fine 0.05 dB steps, while setting memory makes repeated testing more convenient.

Request a Quote
Features
  • Rotary attenuation control with 0.05 dB adjustment steps
  • Displays attenuation values in dB and dBm
  • 10-minute auto-off function can be enabled or disabled from the keypad
  • Stores the attenuation value and adjustment step at power-off and restores the previous settings when the unit is switched on again
Typical Applications
  • Telecom network maintenance
  • CATV network maintenance
  • Cable installation and construction
  • Optical instrument R&D
  • Optical communication education and laboratory testing
  • Other optical applications
Specifications
Type3303S (SM)3303M (MM)
Wavelength Range1260 to 1650nm
Fiber Type9/125um SM 62.5/125um MM (50/125 Optional)
Optical ConnectorFC/PC
Calibrated Wavelengths1310/1490/1550/1625nm 850/1300nm
Measurement Range2 to 60dB
Resolution0.05dB
Min. Insertion Loss＜2.0dB
Linearity±0.5dB
Repeatability±0.2dB
Attenuation Accuracy±0.8dB
Input/ Output Return Loss＞35dB (typical value: 40dB)
Max. Input Power＋20dBm
Display128 × 64 monochrome LCD with white backlight
Rechargeable Batteries8.4V
Power Supply Adaptor8.4V
Operating temperature0 to 40℃
Operating Time40 hours
Storage Temperature-10 to 60℃
Humidity0–85% RH (non-condensing)
Dimensions180×90×36.5 mm
Weight427g
Standard Package3303 main body, protective rubber boot, rechargeable battery, power adaptor, instruction manual and cotton swabs and rigid hard carrying case.
Contact us
Get in Touch
Fiber Optic Test Equipment Manufacturer
Since 1998

We provide various testing equipment, measuring equipment, and monitoring equipment for the optical communication industry, and have accumulated a large number of professional technologies and mature solutions.

  • Engage in the research and development and manufacturing of desktop and handheld photoelectric testing instruments
  • The annual output of photoelectric testing equipment reaches 500,000 units
  • Passed ISO9001 series quality certification, 14001 environmental certification, CE certification, FC certification, RoHS certification, and many other international certificates
  • All products have 100% independent intellectual property rights, and provide OEM/ODM services
  • Our products have been recognized by Japan's NTT Communications, South Korea's SK Telecom, Deutsche Telekom, and the United States' Verizon, and have reached cooperation