Optical Fiber Identifier TW3306A

Fiber Testing Instrument

Optical Fiber Identifier TW3306A

Optical Fiber Identifier TW3306A is an essential installation and maintenance instrument. By inserting the fiber into its adapter head, it can identify SM optical fibers without any damage by detecting the optical signals being transmitted through them so as to avoid the opening of the fiber at the splice point for identification and thus avoids the interruption of the service.In the presence of traffic, the intermittently audible tone is activated.The TW3306A optical fiber identifier also allows relative core power display and identification of the 270Hz,1kHz and 2kHz frequencies. When they are used to detect the frequency, the continuously audible tone is activated.There are four types of adapter heads available: Ø0.25, Ø0.9, Ø2.0 and Ø3.0. The TW3306A optical fiber identifier is powered by a 9V alkaline battery.







  • Efficiently identifies the traffic direction and frequency tone (270Hz, 1KHz, 2KHz) without any damage of the fibers
  • Displays the core power of the fibers (-50~+0dBm)
  • Low bending loss and highly efficient output
  • Easy-to-replace adaptors (Ø0.25, Ø0.9, Ø2.0, Ø3.0 to match various optical cables)
  • Machanical damp design of adapter heads to ensure the fiber without damage.
  • “ONE KEY” operation design, easy-to-sue
  • Maintenance in Telecom
  • Maintenance CATV
  • Test Lab of optical fibers
  • Other Fiber Optic Measurements


Type TW3306A
Identified Wavelength Range 800-1700 nm
Identified Signal Type CW, 270Hz±5%,1kHz±5%,2kHz±5%
Detector Type Ø1mm InGaAs 2pcs
Adapter Type Ø0.25 (Applicable for Bare Fiber)
Ø0.9 (Applicable for Ø0.9 Cable )
Ø2.0 (Applicable for Ø2.0 Cable )
Ø3.0 (Applicable for Ø3.0 Cable )
Signal Direction Left & Right LED
Optical Power Reading -50~+0dBm
Signal Frequency 270Hz, 1kHz, 2kHz
Power Supply One 9V Alkaline battery
Operating Temperature -10-+60?
Storage Temperature -25-+70?
Dimension (mm) 195X30X27
Weight (g) 235
TW3306A TW3306A Optical Fiber Identifier, 4pcs adapter heads, Alkaline battery, Instruction Manual, Cotton Tampon and Soft Carrying case.

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