A caractéristiques techniques, Mportant, Otdr – EXFO FTB-7000 OTDR for FTB-200 v2 Manuel d'utilisation
Page 337

OTDR
323
A Caractéristiques techniques
I
MPORTANT
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
de EXFO à l’adresse suivante : www.exfo.com.
SPECIFICATIONS
All specifications below apply to the FTB-7200D-12CD-23B multimode (MM)/singlemode (SM) model and the FTB-7200D-12CD multimode-only version.
Model
Wavelength (nm)
a
Dynamic range
b, c
(dB)
Event dead zone
d
(m)
Attenuation dead zone
d
(m)
FTB-7200D-12CD
850 ± 20/1300 ± 20
27/26
1/1
3/4
FTB-7200D-12CD-23B
1310 ± 20/1550 ± 20
36/34
1/1
4.5/5
Distance range (km)
Multimode: 0.1, 0.3, 0.5, 1.3, 2.5, 5, 10, 20, 40
Singlemode: 1.3, 2.5, 5, 10, 20, 40, 80, 160, 260
Pulse width (ns)
Multimode: 5, 10, 30, 100, 275, 1000
Singlemode: 5, 10, 30, 100, 275, 1000, 2500, 10 000, 20 000
Launch conditions
e
Class CPR 1 or 2
Linearity (dB/dB)
±0.03
Loss threshold (dB)
0.01
Loss resolution (dB)
0.001
Sampling resolution (m)
Multimode: 0.04 to 2.5
Singlemode: 0.04 to 5
Sampling points
Up to 128 000
Distance uncertainty
f
(m)
± (0.75 + 0.0025 % x distance + sampling resolution)
Measurement time
User-defined (60 min maximum)
Typical real-time refresh (Hz)
3
Stable source output power
g
(dBm)
–1.5 (1300 nm), –7 (1550 nm)
Visual fault locator (optional)
Laser, 650 nm ± 10 nm
CW, typical P
out
in 62.5/125 μm: 3 dBm (2 mW)
NOTES
a. Typical.
b. Typical dynamic range with longest pulse and three-minute
averaging at SNR = 1.
c. Multimode dynamic range is specified for 62.5
μm fiber; a 3 dB
reduction is seen when testing 50
μm fiber.
d. Typical dead zone for multimode reflectance below –35 dB and
singlemode reflectance below –45 dB, using a 5 ns pulse.
e. For multimode port, controlled launch conditions allow 50
μm
and 62.5
μm multimode fiber testing.
f. Does not include uncertainty due to fiber index.
g. Typical output power is given at 1300 nm for multimode output
and 1550 nm for singlemode output.
SINGLEMODE OTDR MODULE SPECIFICATIONS
Model
h
Wavelength
i
(nm)
Dynamic
Event
Attenuation
range at 20 μs
j
(dB)
dead zone
k
(m)
dead zone
k
(m)
FTB-7200D-XXX
1310 ± 20/1550 ± 20
36/34
1
4.5/5
FTB-7300E-XXX-XX
o
1310 ± 20/1490 ± 10/1550 ± 20/1625 ± 10/1650 ± 5
39/35/37/39/37
n
0.8
4/4.5/4.5/4.5/4.5
FTB-7400E-XXXX
1310 ± 20/1383 ± 1/1550 ± 20/1625 ± 10
42/40/41/41
0.8
4/4/4.5/4.5
FTB-7500E-XX
l
1310 ± 20/1550 ± 20/1625 ± 10
45/45/45
0.8
4/4.5/4.5
FTB-7600E-XX
1310 ± 20/1550 ± 20/1625 ± 10
50/50/48
m
1/1.5/1
5/5/5
NOTES
h. For complete details on all available configurations, refer to the Ordering Information section.
i. Typical.
j. Typical dynamic range with a three-minute averaging at SNR = 1.
k. Typical dead zone of singlemode modules for reflectance below –45 dB, using a 5 ns pulse.
l. Typical dynamic range at 1550 nm for the FTB-7500E-0023B configuration is 2 dB lower.
m. With NZDS fiber (G.655).
n. Non-SM Live 1625 nm dynamic range is 37 dB.
o. SM Live port built in filter’s bandpass: 1625 nm ± 15 nm/1650 nm ± 5 nm.
All specifications valid at 23 °C ± 2 °C with an FC/PC connector, unless otherwise specified.