Chapter 9 SPECIFICATIONS
9-5
Model name AQ7265
Unit type SMF module
Center wavelength (µm)
1.31±0.02
1.55±0.02
Measured fiber SM (ITU-T G.652)
Distance range (km) 2, 5, 10, 20, 40, 80, 160, 240, 320, 640
Pulse width (sec)
10n, 20n, 50n, 100n, 200n, 500n,
1µ, 4µ, 10µ, 20µ, 50µ
(Note 4)
Sampling resolution Max. 5cm
Error of offset
±1
Error of scale Measurement distance X 2 X 10^-5
Distance accuracy(m)
Error of sampling
±1 sampling resolution
Dynamic range (dB) (SNR = 1)
(Note 1)
43(45typ.)@1.31µm
41(43typ.)@1.55µm
Event dead zone (m)
(Note 2)
2typ.
Attenuation dead zone (m)
(Note 3)
7typ.@1.31µm
8typ.@1.55µm
Loss measurement accuracy (dB/dB)
±0.05
Wavelength (µm) 1.31/1.55
Max. output (dBm)
-3±2
Stabilized Light source
Stability (dB)
(Note5)
±0.1
Optical connector AQ9441(*) Universal connector : Option
Operating temperature
-10 to 50°C
Storage temperature
-20 to +60°C
Environment
condition
Humidity 95%RH or less (no condensation)
Specifications without any special remarks, assured at 23±2°C.
(Note1) The loss from the connection end of measured fiber to the point at which the back scattering ray level
equals the RMS level of noise is expressed dynamic range (SNR =1).
At measurement time : 3 minutes, pulse width : 20 µs, Filter : ON.
Noise peak
2.6dB
Dynamic range
Dynamic range
(SNR =1)
RMS level of noise
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