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Shdsl data rate test, Psd noise measurement, Dsl impulse noise measurement – EXFO CableSHARK P3 VF/DSL Cable Qualifier User Manual

Page 278

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VF / DSL Cable Qualifier

266

ADSL2+: 4.3 kHz to 2.208 MHz
Horizontal scale:

Depends on Frequency Range (see above)

Vertical scale:

-36 dBm/Hz to -156 dBm/Hz or

0 to – 120 dBm
CPE / DSLAM detection:

ADSL Annex A, ADSL Annex B, ADSL2, ADSL2+

SHDSL Data Rate Test

Extrapolated Results - Combined Frequency Response, PSD Noise / Crosstalk, Signal-to-Noise Ratio,
Disturber Identification, and Data Rate Estimation test plot with cursor and zoom.

Distance

range:

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

** range will depend on cable type and condition
** specifications based on 24 AWG (0.5 PE mm) cabling

SHDSL

setups:

ITU-T Annex A or ITU-T Annex B

Noise margin range:

Auto, 0 to 20.0 dB in 1 dB steps

Frequency range:

4.3 kHz to 1.104 MHz

Horizontal scale:

0 - 1.104 MHz

Vertical scale:

-36 dBm/Hz to -156 dBm/Hz Hz or 0 to – 120 dBm



PSD Noise Measurement

Single-end test plot of Power Spectral Density / crosstalk noise spectrum with disturber identification, cursor
and zoom.

Mode:

Continuous or Peak-hold display of (PSD)

Vertical scale:

-10 to –153.3 dBm/Hz or +20 to -120 dBm

Horizontal scale:

2.16 kHz to 2.2 MHz, in 2.16 kHz steps, optional 6 MHz support available

Noise

filters:

None or E, F, G (IEEE-743 / 1995)


DSL Impulse Noise Measurement


Threshold:

-50 dBm (40 dBrn) to 0 dBm (90 dBrn) in 1 dB steps

Counter:

Maximum 65000

Test

duration:

1 minute, 5 minutes, 10 minutes, 15 minutes, 60 minutes, 24 hours, or

continuous (up to 360 hours)
Histogram plot interval:

1, 5, 10, 15 or 60 minutes

Accuracy:

±

2 dB