EXFO FTB-635 Wideband Copper and DSL Test Module User Manual
Page 336
xDSL Test Results
328
FTB-635
Band Information
Parameter
SNR Margin (dB) is the measured current signal-to-noise ratio
margin across all active sub-carriers, as an amount of increased
noise relative to the measured noise power that the system would
be able to tolerate. Only a value of 6 or above is able to support a
normal minimum bit error rate of 10-7.
Loop Attenuation (dB) is the current quality of the line and is only
calculated once at Showtime.
Signal Attenuation (dB) is the current reduction of signal strength
and is recalculated repeatedly when the line is connected.
Output Power (dBm) is the upstream/downstream transmitting
power for the selected band.
See also other documents in the category EXFO Measuring instruments:
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- ADSL2+ (267 pages)
- ADSL2+ (275 pages)
- ARU-100 HPNA Test Probe (26 pages)
- ARU-100 HPNA Test Software Option for DSL/IP Tests (3 pages)
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- AXS-200/610 Copper Test Module (152 pages)
- AXS-200/650 IP Triple-Play Test Set (91 pages)
- AXS-200/850 Ethernet Test Set (262 pages)
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- EPM-ELS-50 (206 pages)
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- ETS-1000G (195 pages)
- ETS-1000L (47 pages)
- EXpert IP Test Tools (62 pages)
- EXpert IPTV Test Tools (FTB-1 / 2 Pro) (82 pages)
- EXpert IPTV Test Tools (FTB-200v2) (82 pages)
- EXpert VoIP Test Tools (107 pages)
- FIP-400 Fiber Inspection Probe and ConnectorMax (78 pages)
- FIP-400B Fiber Inspection Probe Multifiber (2 pages)
- FIP-400B Fiber Inspection Probe and ConnectorMax2 (111 pages)
- FIP-425B/435B Fiber Inspection Probe and ConnectorMax2 Mobile (103 pages)
- FLS-110 Optical Polarized Source (18 pages)
- FLS-300 Light Source (40 pages)
- FLS-5800 CD/PMD Analyzer Source (106 pages)
- FLS-5800 CD/PMD Analyzer Source (98 pages)
- FLS-5800 (6 pages)
- FLS-600 Light Source (79 pages)
- FOA Compatibility (3 pages)
- FOT-5200 Coarse Spectrum Analyzer (47 pages)
- FOT-930 Multifunction Loss Tester (111 pages)
- FTB -5240S/5240BP Optical Spectrum Analyzer for FTB 500 (NS-1434) (537 pages)
- FTB-5230S Optical Spectrum Analyzer for FTB 200 v2 (659 pages)
- FTB-5230S Optical Spectrum Analyzer for FTB 200 v2 (251 pages)
- FTB -5240S/5240BP Optical Spectrum Analyzer (638 pages)
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- FTB-2 Pro (6 pages)
- FTB-2 Pro (443 pages)
- FTB-200 v2 Compact Modular Platform (222 pages)
- FTB-2200 for FTB-200 v2 (41 pages)
- FTB-3930 MultiTest (101 pages)