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Part number: 130705-00317 Copyed at buffer

About this item (PDF)

The FOT-602X-23BL-VFL optical loss test set combines (OLTS) a light source similar to the FLS-600 and the FPM-600 power meter. The light source operates at two single-mode wavelengths: 1310\1550 nm. The power meter is calibrated to 40 wavelengths. It is a universal device for measuring almost any signal level.

The OLTS is a perfect solution for evaluation the signal level in fiber optic lines. With two testers, the operator can measure line loss on all available wavelengths and in both directions easily and precisely. It is possible to set the measurement thresholds manually, the threshold violation will be signalized by a red indicator. The tester can be paired with another device of the EXFO 600 or 300 series, the FOT-930 MaxTester or the EXFO FTB-3930 Multitest module. The OLTS automatically recognizes the applied wavelength and switches to the appropriate calibration parameters.

All the data can be easily managed and transferred to a PC via the USB port thanks to the large storage space for up to 1000 test records and the appropriate software.

Main features of the EXFO OLTS:

  • automatic wavelength detection;
  • memory space for 1000 results;
  • PC connection via USB port;
  • extra visual fault locator (for macrobend detection);
  • powered by lithium battery;
  • adjustable pass/fail thresholds;
  • requires no reset;
  • durable body;
  • 3-year calibration interval


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If you are interested in this product, contact the responsible manager to clarify the price and delivery dates.

Ведущий менеджер по развитию продукта
Кузьмичев Степан Борисович
Phone: +7 (495) 786-34-43, доб. 258
Item parameters
Technical specifications
Light source (nm) 1310/1550
Power meter (calibrated wavelength) 40
Detector type GeX
Wavelength range 850 ... 1650
Power range, dBm 26 ... -55
Power uncertainty, nW ± 5 % ± 3
Resolution, dB ±0.01
Automatic offset nulling Yes
Warm-up time, min 0
Units of measurement dB/dBm/W
Automatic wavelength detection Yes
Tone detection (Hz) 270, 1k, 2k
Data storage capacity (items) 1000
Battery operating time (hours, typical) 72
Recommended calibration interval (years) 3
Spectral width (nm) ≤ 5
Output power, dBm ≥1
Power stability (dB) 8 hours ± 0.03 (15 min), ± 0.1 (8 hours)
Fault locator, VFL 650 nm, 3 dBm
Kit content
FOT-602X-23BL-VFL Optical Tester 1 pc.
Charger/AC adapter 1 pc.
Rechargeable battery 1 pc.
USB cable 1 pc.
Strap 1 pc.
Semi-rigid carrying case 1 pc.
Quick start guide 1 pc.
Logistic data
Volume, m3: 0,013000
Weight, kg: 1,5

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Central warehouse: 142001, Domodedovo, Promishlennaya st.

Concrete goods warehouse: 115088, Moscow, st. Yuzhnoportovaya d.7A, Working hours: Monday-Friday: from 8:00 to 17:00 (Saturday, Sunday closed)


Delivery time: Delivery time between warehouses from the moment of payment confirmation can vary from 2 to 3 days.


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Projected delivery time does not take into account seasonality, production workload and ordered quantity. This period is for informational purposes and is the average value of the order fulfillment for this product over the past 12 months.


Important: The exact delivery time is agreed in the specification.


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Regional warehouse: 630110, Novosibirsk, st. Bogdana Khmelnitsky, 93 st.6, Working hours: Monday-Friday: from 8:00 to 17:00 (Saturday, Sunday closed). Tel.: +7 (383) 312-04-34


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Regional warehouse: 620034, Ekaterinburg, st. Elizabethan Highway, 39, Working hours: Monday-Friday: from 8:00 to 17:00 (Saturday, Sunday closed). Tel.: +7 (343) 302-54-34


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  1. «Yes»: total distributor discount;
  2. «Exclusive»: a discount on a list price or item other than a general discount;
  3. «Limited», depends on quantity:
    • Less than a small wholesale lot = Small wholesale + 2%.
    • More than a small wholesale batch, but less than a large wholesale = Large wholesale.
    • More large wholesale lot = Large wholesale +2%.
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  1. «Yes»: partner's total discount;
  2. «Limited»: a price list discount other than the general discount;
  3. «None», depends on quantity:
    • Less than a small wholesale lot = Affiliate discount.
    • More than a small wholesale lot, but less than a large wholesale lot = Small wholesale; If the Affiliate discount is greater than the Small wholesale, then the Affiliate discount.
    • More large wholesale lot = Large wholesale.