Fluke CableAnalyzer DSX-5000, Техническое справочное руководство, Страница: 663 / 700

Chapter 21: Specifications
OptiFiber Pro HDR OTDR Module Specifications
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OptiFiber Pro HDR OTDR Module Specifications (cont.)
Maximum Distance to
Event
6, 7, 8
1310 nm: 100 km
1490 nm: 135 km
1550 nm: 160 km
1625 nm: 135 km
Maximum Distance to
Noise
6, 7, 9
1310 nm: 120 km
1490 nm: 170 km
1550 nm: 200 km
1625 nm: 170 km
Maximum Distance to UPC
End
6, 7, 10
1310 nm: 150 km
1490 nm: 215 km
1550 nm: 260 km
1625 nm: 220 km
Maximum Range Setting
11
260 km
Distance Measurement
Accuracy
 1  (0.00005 x distance) ±(0.5 x resolution) ±
(index of refraction error) ± (event location error)
meters typical
Linearity
12

0.03 dB/dB typical maximum
Reflectance Range
-14 dB to -70 dB
6. Fiber attenuation coefficients (based upon ITU-T G.652.D compliant SMF-28e+):
0.35 dB/km at 1310 nm, 0.24 dB/km at 1490 nm, 0.20 dB/km at 1550 nm, 0.23 dB/km
at 1625 nm.
7. Backscatter coefficients (based upon ITU-T G.652.D compliant SMF-28e+): -77 dB at
1310 nm, -82 dB at 1550 nm.
8. Typical maximum distance for detecting 0.1 dB non-reflective event.
9. Typical maximum distance until backscatter falls into the noise floor (SNR=1).
10. Typical maximum distance for detecting a UPC end event.
11. Maximum setting for the SmartLoop OTDR test is 60 km for singlemode.
12. Applies to the initial 21 dB of signal, excluding the first 1 dB, using a 3000 ns pulse
width.