Exfo FTB-635 Wideband Copper and DSL Test Module Manuel d'utilisateur télécharger pdf (Page 402)

100

101

Caractéristiques techniques

394 FTB-635

COPPER SPECIFICATIONS

a, b, c

(continued)

Single-ended frequency response (attenuation)

Distance range 100 m to 5000 m (300 ft to 16000 ft)

Frequency range 4.3 kHz to 30 MHz

Frequency uncertainty (accuracy) ±(50 ppm + 1 digit)

Level uncertainty (accuracy)

±2 dB typical for 2.2 MHz and 8 MHz ranges

±3 dB for VDSL2-12 and VDSL2-17

±4 dB for VDSL2-30 ranges

Resolution 0.1 dB

Horizontal scale ADSL2+ = 2.208 MHz, VDSL2-8 = 8 MHz, VDSL2-12 = 12 MHz,

VDSL2-17 = 17.66 MHz, VDSL2-30 = 30 MHz

Vertical scale 0 dB to 100 dB

Resistive fault location (RFL) Test type Single pair (two wire) and separate good pair (four wire) and Küpfmüller (K-Test)

Fault detection 0 to 20 M1

Resolution Three digits

Loop resistance 10 k1maximum

Multiple cable sections Five (includes gauge and temperature setting)

Fault location Total resistance, near-end to fault resistance, fault to strap resistance

(three significant digits, least significant digit 0.1 1).

Total length, distance to fault, distance from fault to strap

(three significant digits, least significant digit 1 m)

Uncertainty (accuracy) ±(0.1 1 + 1 % x RTS)

K-Test uncertainty (accuracy) ± (1.0 1 + 1 % RTS + (Rf1 + Rf2)/10 M1) - double fault

± (1.0 1 + 1% RTS) - single fault

NOTES

a. Subject to change without notice.

b. Typical, at 23 °C ± 3 °C, on batteries, with no USB connection.

c. Specifications based on 24 AWG (PE 0.5 mm) cabling.

d. Specification based on 1 kft 24 AWG cabling. Range depends on cable type and condition.

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