Atec Fluke-OF-500 - Manual (Page 114)

OF-500 OptiFiber Certifying OTDR
Users Manual
104
OTDR Specifications for OFTM-561xB Multimode Modules (cont.)
Event deadzones 2 850 nm: 0.5 m typical
1300 nm: 1.3 m typical
Attenuation deadzones 3 850 nm: 4.5 m typical
1300 nm: 10.5 m typical
Maximum measurement range 4 850 nm: 3 km
1300 nm: 7 km
Dynamic range 5 850 nm:
>
15 dB typical
1300 nm: > 14 dB typical
Output power 850 nm: > 110 mW-pk
1300 nm:
>
22 mW-pk
2. Measured at 1.5 dB below reflection peak for typical connector with UPC polish (reflectance < -37 dB multimode) using narrowest
pulse width (4 ns at 850 nm; 8 ns otherwise) at near end (100 m, which excludes dispersion). See Figure 38.
3. Measured at ± 0.5 dB beyond backscatter for typical connector with UPC polish (reflectance of < -37 dB multimode) using 40 ns pulse
width (20 ns at 850 nm) at near end (100 m, which excludes dispersion). See Figure 38.
4. Distance ranges for typical fiber loss. For typical fiber with backscatter coefficients of -67 dB at 850 nm and -74 dB at 1300 nm. Manual
mode provides a nominal 8 km range for multimode; however, the typical ranges for measuring loss are shown here.
5. SNR=1 method. Subtract 1.8 dB to compare to Telecordia 98 % method.