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Optical Test Instrument

AT4X2X

Multi-Mode Attenuator


AT4X2X series benchtop multi-channel attenuators are a new class of remote controlled fiber optic instruments for optical transceiver and network integration test. High setting speed of attenuation and power as well as power measurement capability, combined with USB, and LAN interfaces provides increased throughput and operational efficiency to meet today’s challenges both in R&D and manufacturing.

AT4X2X series attenuators feature both attenuation mode and power control mode. With integrated input and output monitor power-meter, it is the unique tools to combine both attenuator and power-meter in one box.

In attenuation mode, the calibrated value of attenuation in dB can be set. The power control functionality allows you to set the power level at the attenuator output. The instrument uses the feedback signal from a photodiode after a monitor tap, both integrated in the instrument, to set the desired power level at the output of the module.


Features

  • Power monitor range

    Support input and output power monitoring, monitor power range: +0~-50 dBm
  • Parallel testing

    Support multi-channel parallel measurement to improve test efficiency
  • Power Lock

    Support decay mode and power control mode, automatically keep the output power constant in power control mode
  • User-friendly interface

    Easy-to-use and intuitive graphical user interface

AT4321/2/4/8
Connector Type

FC/UPC or FC/APC

Fiber type

50/125 or 62.5/125 μm

Wavelength 850 nm
Adjustable Range 0~40 dB

Resolution

0.1 dB

Attenuation Accuracy(Typ)

±0.2 dB
Repeatability <0.1 dB
Insertion loss

≤1.5dB or ≤2.5dB (with Power-Control)

Power Monitor Range

0~-50 dBm

Power-meter Accuracy

3%
Return loss Typ. 25 dB
Maximum safe input power +23 dBm

Display

Default 3.5-inch TFT
Remote control LAN, USB

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