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A
Caractéristiques techniques
Les caractéristiques techniques suivantes peuvent être modifiées
sans préavis. Les informations présentées dans cette section sont
fournies uniquement à titre de référence. Pour obtenir les plus
récentes spécifications techniques de ce produit, visiter le site
Web d'EXFO à l'adresse suivante : www.exfo.com.
a
SPECIFICATIONS
TECHNICAL SPECIFICATIONS
b
Wavelength (nm)
c, d
Dynamic range (dB)
e
Event dead zone (m)
f
Attenuation dead zone (m)
Distance range (km)
Pulse width (ns)
f
Launch conditions
Linearity (dB/dB)
Loss threshold (dB)
Loss resolution (dB)
Sampling resolution (m)
Sampling points
g
Distance uncertainty (m)
Measurement time
Typical real-time refresh (Hz)
Stable source output
h
power (dBm)
Visual fault locator (optional)
NOTES
a. All specifications valid at 23 °C ± 2 °C with an FC/PC connector, unless otherwise specified; APC connector for FTB-720 singlemode model.
b. Typical.
c. Typical dynamic range with longest pulse and three-minute averaging at SNR = 1.
d. Multimode dynamic range is specified for 62.5 μm fiber; a 3 dB reduction is seen when testing 50 μm fiber.
e. Typical dead zone for multimode reflectance below –35 dB and singlemode reflectance below –45 dB, using a 5 ns pulse.
f. For multimode port, controlled launch conditions allow 50 μm and 62.5 μm multimode fiber testing.
g. Does not include uncertainty due to fiber index.
h. Typical output power is given at 1300 nm for multimode output and 1550 nm for singlemode output.
i.
Under improvement to achieve better conditions.
OTDR
FTB-7200D
850 ± 20, 1300 ± 20, 1310 ± 20, 1550 ± 20
27, 26, 36, 34
1
3, 4, 4.5, 5
Multimode: 0.1, 0.3, 0.5, 1.3, 2.5, 5, 10, 20, 40
Singlemode: 1.25, 2.5, 5, 10, 20, 40, 80, 160, 260
Multimode: 5, 10, 30, 100, 275, 1000
Singlemode: 5, 10, 30, 100, 275, 1000, 2500, 10 000, 20 000
Class CPR 1 or 2
±0.03
0.01
0.001
Multimode: 0.04 to 2.5
Singlemode: 0.04 to 5
Up to 128 000
±(0.75 + 0.0025 % x distance + sampling resolution)
User-defined (60 min. maximum)
3
–1.5 (1300 nm), –7 (1550 nm)
Laser, 650 nm ± 10 nm
b
CW, P
in 62.5/125 μm: 1.5 dBm (1.4 mW)
out
I
MPORTANT
FTB-720
(Preliminary)
850 ± 20, 1300 ± 20, 1310 ± 20, 1550 ± 20, 1625 ± 15 (filtered)
26, 25, 35, 32, 33
0.8
3.5, 4.5, 5, 5, 5
Multimode: 0.1, 0.3, 0.5, 1.3, 2.5, 5, 10, 20, 40
Singlemode: 1.25, 2.5, 5, 10, 20, 40, 80, 160, 260
Multimode: 5, 10, 30, 50, 100, 275, 500, 1000
Singlemode: 5, 10, 30, 50, 100, 275, 500, 1000, 2500, 10 000, 20 000
Class CPR 1 or 2
±0.03
0.01
0.001
Multimode: 0.04 to 2.5
Singlemode: 0.04 to 5
Up to 256 000
±(0.75 + 0.0025 % x distance + sampling resolution)
User-defined (60 min. maximum)
3
–2.5 (1300 nm), –7 (1550 nm)
N/A
i
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