DSL Noise: |
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Noise Weighting Filters: |
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E Filter (ISDN/IDSL) | 1 kHz to 50 kHz |
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F Filter (HDSL) | 4.9 kHz to 245 kHz |
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G Filter (ADSL) | 20 kHz to 1.1 MHz |
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Metallic (100/135 Ω) |
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E Filter (ISDN/IDSL) | 10 to | 90 dBm | 2dB |
F Filter (HDSL) | 20 to | 90 dBm | 2dB |
G Filter (ADSL) | 30 to | 90 dBm | 2dB |
Longitudinal |
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E Filter (ISDN/IDSL) | 40 to | 120 dBm | 2dB |
F Filter (HDSL) | 50 to | 120 dBm | 2dB |
G Filter (ADSL) | 60 to | 120 dBm | 2dB |
Spectrum Analyzer: |
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Frequency Range: | 10 kHz to 1.8 Mz, |
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Frequency Spans: | 120 kHz, 240 kHz, |
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| 465 kHz, 1 MHz, 2 MHz |
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Dynamic Range: |
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Frequency Resolution: | 1% of span |
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Input Impedance: | 100 | Ω |
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Generally Accepted Criteria of
Plain Old Telephone Service (POTS) service
(US and Canada)
Parameter | Acceptable | Marginal | Unacceptable | ||
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Current | >23 | 20 to 23 | <20 | mA | |
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Loss | <8.5 | — | >8.5 | dB | |
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Balance | >60 | 50 to 60 | <50 | dB | |
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Noise | <20 | 20 to 30 | >30 | dBrnC | |
dBmOp | |||||
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Power | <80 | 80 to 90 | >90 | dBrnC | |
Influence | >0 | dBmOp | |||
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Ground | <25 | — | >25 | Ohms | |
Resistance* | |||||
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Insulation | >3M | 300K to 3M | <300K | Ohms | |
Resistance | |||||
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Longitudinal | >59 | 50 to 59 | <50 | dB | |
Balance | |||||
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*Note: Ground Resistance can not be measured on “floating tip” or “floating A” switches such as the AT&T #5ESS.
Note: All specifications are based on information believed to be reliable, but the accuracy or completeness thereof is not guaranteed. Specifications for this product are subject to change without notice.
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