Media5 Mediatrix 4116, Руководство по установке оборудования

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Appendix C - Standard Hardware Information DTMF Tone Detection
40 Mediatrix 4100 – Analog Access Device
DTMF Tone Detection
DTMF Tone Generation
Power Consumption
MTBF Value
The Mean Time Before Failure (MTBF) value of the Mediatrix 4100 models is estimated as follows:

Mediatrix 4108: 200,000 hours

Mediatrix 4116: 190,000 hours

Mediatrix 4124: 180,000 hours
These values are at 25 degrees Celsius ambient temperature. It has been defined using RelCalc v5.0, Bellcore
method (LimitedStress - Method I, Case 3), Desktop unit .
Table 21: DTMF Tone Detection
Parameter Description
16-Digit DTMF Decoding 0 to 9, *, #, A, B, C, D
Permitted Amplitude Tilt High frequency can be +2 dB to -8 dB relative to low frequency
Dynamic Range -25 dBm to 0 dBm per tone
Frequency Accept ± 1.5% of nominal frequencies
Minimum Tone Duration 40 ms
Interdigit Timing Detects like digits with a 40 ms interdigit delay
Table 22: DTMF Tone Generation
Parameter Description
Per Frequency Nominal -8 dBm to -5 dBm
Frequency Deviation Within 1.5% of nominal values
Table 23: Power Consumption
Parameter Description
Idle Mode: 120Vac 0.54A 43W
Idle Mode: 240Vac 0.36A 43W
24 Extensions Off-Hook (worst
case): 120Vac 0.58A 66W
24 Extensions Off-Hook (worst
case): 240Vac 0.5A 66W