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Интеллектуальный рефлектометр для тестирования оптоволоконных линий 169

A Технические характеристики

FTB-720

ВАЖНО!

Следующие технические характеристики могут быть изменены

без уведомления. Информация, содержащаяся в данном

разделе, носит справочный характер. Обновленные сведения о

технических характеристиках изделия см. на веб-сайте по EXFO

адресуwww.exfo.com.

TECHNICAL SPECIFICATIONS

Wavelength (nm)

850 ± 20, 1300 ± 20, 1310 ± 20, 1550 ± 20, 1625 ± 15 (filtered)

Dynamic range

(dB)

c, d

27, 26, 36, 34, 34

Event dead zone (m)

0.8

Attenuation dead zone (m)

4, 4.5, 5, 5, 5

Distance range (km)

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

Pulse width (ns)

Multimode: 5, 10, 30, 50, 100, 275, 500, 1000

Singlemode: 5, 10, 30, 50, 100, 275, 500, 1000, 2500, 10 000, 20 000

Launch conditions

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 256 000

Distance uncertainty (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 (dBm)

–3 (1300 nm), –7 (1550 nm)

GENERAL SPECIFICATIONS

Size (H x W x D) 130 mm x 36 mm x 252 mm (5

in x 1

in x 9

in)

Weight 0.65 kg (1.4 lb)

Temperature

Operating

Storage

0 °C to 50 °C (32 °F to 122 °F)

–40 °C to 70 °C (–40 °F to 158 °F)

Relative humidity 0% to 95% non-condensing

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.

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Exfo iOLM Manuel d'utilisateur Page 175

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