EXFO OTDR 2 - Manual (Page 187)

Technical Specifications
OTDR 179
FTB-7400E
FTB-7400E
TECHNICAL SPECIFICATIONS
Model a FTB-7400E-XXXX FTB-7400E-CWS FTB-7400E-CWCL
Wavelengths (nm) b 1310 ± 20/1383 ± 1/1550 ± 20/1625 ± 10 1470 ± 3/1490 ± 3/1510 ± 3/1530 ± 3 1550 ± 3/1570 ± 3/1590 ± 3/1610 ± 3
Dynamic range at 20 +s (dB) c 42/40/41/41 41/41/ 41/41 41/41/ 40/40
Event dead zone (m) d 0.8 0.8 0.8
Attenuation dead zone (m) d 4/4/4.5/4.5 4/4.5/4.5 4/4.5/4.5
Distance range (km) 1.25, 2.5, 5, 10, 20, 40, 80, 160, 260, 400 1.25, 2.5, 5, 10, 20, 40, 80, 160, 260, 400 1.25, 2.5, 5, 10, 20, 40, 80, 160, 260, 400
Pulse width (ns)
5, 10, 30, 100, 275, 1000, 2500,
10 000, 20 000 5, 10, 30, 100, 275, 1000, 2500,
10 000, 20 000 5, 10, 30, 100, 275, 1000, 2500,
10 000, 20 000
Linearity (dB/dB) b ± 0.03 ± 0.03 ± 0.03
Loss threshold (dB) 0.01 0.01 0.01
Loss resolution (dB) 0.001 0.001 0.001
Sampling resolution (m) 0.04 to 5 0.04 to 5 0.04 to 5
Sampling points Up to 256 000 Up to 256 000 Up to 256 000
Distance uncertainty (m) e
± (0.75 + 0.001 % x distance + sampling
resolution) ± (0.75 + 0.001 % x distance + sampling
resolution) ± (0.75 + 0.001 % x distance + sampling
resolution)
Measurement time
User-defined
(5 sec. minimum to 60 min. maximum) User-defined
(5 sec. minimum to 60 min. maximum) User-defined
(5 sec. minimum to 60 min. maximum)
Typical real-time refresh (Hz) 4 4 4
Stable source output power (dBm) f –4.5 (7400E-0023B)
Visual fault locator (optional) b
Laser, 650 nm ± 10 nm
CW, P
out
in 62.5/125 μm: 1.5 dBm (1.4 mW)
Notes
a. For complete details on all available configurations, refer to the Ordering Information section.
b. Typical.
c. Typical dynamic range with a three-minute averaging at SNR = 1.
d. Typical dead zone of singlemode modules for reflectance below –45 dB, using a 5 ns pulse.
e. Does not include uncertainty due to fiber index.
f. Typical output power value at 1550 nm.