Wavelength (nm)

850/1300

1310/1550

1310/1490/1550

1625

Dynamic range (dB)2

23/21

32/30

38/36

32/30/30

344

365

Pulse width (ns)

5, 20, 40, 80, 160, 320, 640, 1280

5, 20, 40, 80, 160, 320, 640, 1280, 2560, 5120, 10240, 20480

Event blind zone (m)3

3m

3m

Attenuation blind zone (m)3

13m

13m

Linearity (dB/dB)

±0.05 dB/ dB

Loss threshold (dB)

0.05

Loss resolution ratio (dB)

0.01

Sampling resolution ratio (m)

0.125 to 8

Sampling point

32K

Distance uncertainty    (m)

±(1 m + 5×10-5× distance + sampling   interval)

Distance scope (km)

0.3 to180

Typical real-time refreshing duration (s)

0.2

Memory capacity of trace

SD Card (4G), > 10000 pieces

Duration of measurement

Defined by user; 5sec, 10sec, 15sec, 30sec, 1min, 2min,   and 3min are selectable

General specification

Interface category

Dimension (H×W×D)

150×235×66

Optical interface

FC/UPC (PC, and APC are selectable)

Weight

1.5kg

Data interface

USB interface, SD card interface

Temperature

Running temperature -10℃ to 50℃

Memory temperature -40℃ to 70℃

Visible failure orientation VFL

Relative humidity

0% to 95% (non condensation)

Wavelength

650nm

Power supply

Lithium battery; continuing working duration ≥ 8 hours

Output power (dBm)

≥-3

Warranty period

12 months

Maximum testing distance

3km

Remarks: 1. The technical specification describes the   ensured performance of the instrument when using typical PC model connector   to measure. Without considering the uncertainty caused by optical fiber   refractivity.

2. Dynamic range is the data measured under the   condition of the maximum pulse width and 3 minutes of average time. Dynamic   range is the data measured under the condition of 180km/20480ns/3min.

3. Measuring conditions of blind zone: reflection event   is within 4Km, reflection strength < -35dB. Measured by the minimum pulse   width.

4. Dynamic range measured when there is filter.

5. Dynamic range measured when there is no filter.