Chapter 21: Specifications
OptiFiber Pro OTDR Module Specifications
623
OptiFiber Pro OTDR Module Specifications (cont.)
Multimode Singlemode
Dynamic Range
3, 6, 7
850 nm: 28 dB typical
1300 nm: 30 dB typical
1310 nm: 32 dB typical
1550 nm: 30 dB typical
Maximum Distance
Range Setting
4
40 km 130 km
Distance
Measurement
Range
5, 6, 8, 9, 10, 11
850nm: 9km
1300 nm: 35 km
1310 nm: 80 km
1550 nm: 130 km
Distance
Measurement
Accuracy
12
1 (0.00005 x distance)
(0.5 x resolution) meters
typical
1 (0.00005 x distance)
(0.5 x resolution) meters
typical
3. For typical backscatter coefficient for OM1 fiber: 850: -65 dB, 1300: -72 dB
4. Maximum settings for the SmartLoop OTDR test are 20 km for multimode and 60 km
for singlemode.
5. Typical backscatter and attenuation coefficients for OM2-OM4 fiber: 850 nm: -68 dB;
2.3 dB/km: 1300 nm: -76 dB; 0.6 dB/km
6. Typical backscatter and attenuation coefficients for OS1-OS2 fiber: 1310 nm: -79 dB;
0.32 dB/km; 1550 nm: -82 dB; 0.19 dB/km
7. SNR=1 method, 3 minute averaging, widest pulse width
8. 850 nm: 9 km typical to find the end or 7 km typical to find a 0.1 dB event (with a
maximum of 18 dB attenuation prior to the event)
9. 1300 nm: 35 km typical to find the end or 30 km typical to find a 0.1 dB event (with a
maximum of 18 dB attenuation prior to the event)
10. 1310 nm: 80 km typical to find the end or 60 km typical to find a 0.1 dB event (with a
maximum of 20 dB attenuation prior to the event).
11. 1550 nm: 130 km typical to find the end or 90 km typical to find a 0.1 dB event (with
a maximum of 18 dB attenuation prior to the event).
12. Does not include index of refraction error and does not include automatic event
location error.
-continued-
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