Multi-Mode Attenuator-Semight Instruments

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.

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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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