Data Sheet

56
Appendix Technical Parameters of OTDR
Technical Specifications
1
Wavelength (nm) 850/1300 1310/1550 1310/1490/1550 1625
Dynamic range (dB)
2
21/23 32/30 38/36 32/30/30 34
4
36
5
Pulse width (ns)
20、40、80、160、
320、640、1280
5、10、20、40、80、160、320、640、1280、2560、5120、10240、20480
Event blind zone (m)
3
15m 2m
Attenuation blind zone (m)
3
25m 14m
Displaying screen 5.6’ touch screen 640*480
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 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
Running temperature -10℃ to 50℃
Temperature
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 100km/20480ns/3min.
3. Measuring conditions of blind zone: reflection event is within 10Km, reflection strength < -45dB. Measured by
the minimum pulse width.
4. Dynamic range measured when there is filter.
5. Dynamic range measured when there is no filter.