Exfo OTDR 2 Manuel d'utilisateur télécharger pdf (Page 188)

Technical Specifications

180 OTDR

FTB-7500E

TECHNICAL SPECIFICATIONS

Model

FTB-7500E

Wavelengths (nm)

1310 ± 20/1550 ± 20/1625 ± 10

Dynamic range at 20

+s (dB)

45/45/45

Event dead zone (m)

0.8

Attenuation dead zone (m)

4/4.5/4.5

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)

± 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)

± (0.75 + 0.001 % x distance + sampling resolution)

Measurement time User-defined (5 sec. minimum to 60 min. maximum)

Typical real-time refresh (Hz) 4

Stable source output power (dBm)

–1 (7400E-0023B)

Visual fault locator (optional)

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. Typical dynamic range at 1550 nm for the FTB-7500E-0023B configuration is 2 dB lower.

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.

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Exfo OTDR 2 Manuel d'utilisateur Page 188

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