EXFO FTB-700 for FTB-1 - Инструкция (Страница 334)

Технические характеристики
324 Серия FTB-700
FTB-720G OTDR TECHNICAL SPECIFICATIONS
Wavelength (nm) b 1310 ± 20, 1550 ± 20
Dynamic range (dB) c 36, 34
Event dead zone (m) d 0.8
Attenuation dead zone (m) d 5
Distance range (km) 1.25, 2.5, 5, 10, 20, 40, 80, 160, 260
Pulse width (ns) 5, 10, 30, 50, 100, 275, 500, 1000, 2500, 10 000, 20 000
Linearity (dB/dB) b ±0.03
Loss threshold (dB) 0.01
Loss resolution (dB) 0.001
Sampling resolution (m) 0.04 to 5
Sampling points Up to 256 000
Distance uncertainty (m) e ±(0.75 + 0.0025 % × distance + sampling resolution)
Measurement time User-defined (60 min. maximum)
Typical real-time refresh (Hz) 3
Stable source output power (dBm) f –7
NOTES
a. All specifications valid at 23 °C ± 2 °C with an FC/PC connector, unless otherwise specified; APC connector for FTB-720G and FTB-730G singlemode model.
b. Typical.
c. Typical dynamic range with longest pulse and three-minute averaging at SNR = 1.
d. Typical dead zone for reflectance below –45 dB, using a 5 ns pulse.
e. Does not include uncertainty due to fiber index.
f. Typical output power is given at 1550 nm.
g. Non-reflective FUT, non-reflective splitter, 13 dB loss, 50 ns pulse, typical value.
FTB-730G OTDR TECHNICAL SPECIFICATIONS
Wavelength (nm) b 1310 ± 20/1550 ± 20
Dynamic range (dB) c 39/37
Event dead zone (m) d 0.8
Attenuation dead zone (m) d 4/4.5
Distance range (km) 1.25, 2.5, 5, 10, 20, 40, 80, 160, 260, 400
Pulse width (ns) 5, 10, 30, 50, 100, 275, 500, 1000, 2500, 10 000, 20 000
Linearity (dB/dB) b ±0.03
PON dead zone (m) g 35
Loss threshold (dB) 0.01
Loss resolution (dB) 0.001
Sampling resolution (m) 0.04 to 5
Sampling points Up to 256 000
Distance uncertainty (m) e ±(0.75 + 0.0025 % x distance + resolution)
Measurement time User-defined (60 min. maximum)
Typical real-time refresh (Hz) 4
Stable source output power (dBm) f –2.5
Reflectance (dB) b ±2