Specifications

Appendix B - Standard Hardware Information DTMF Tone Generation
198
Mediatrix 4100
DTMF Tone Generation
MTBF Value
The Mean Time Before Failure (MTBF) value of the Mediatrix 4100 is 180,000 (Mediatrix 4124), 190,000
(Mediatrix 4116), and 200,000 (Mediatrix 4108) hours at 25 degrees Celsius ambient temperature. It has been
defined using RelCalc v5.0, Bellcore method (LimitedStress - Method I, Case 3), Desktop unit.
Power Consumption
Measurements at the DC input
Operating Environment
Interdigit Timing Detects like digits with a 40 ms interdigit delay
Table 127: DTMF Tone Generation
Parameter Description
Per Frequency Nominal -8 dBm to -5 dBm
Frequency Deviation Within 1.5% of nominal values
Table 126: DTMF Tone Detection (Continued)
Parameter Description
Table 128: Power Consumption at the DC Input
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
Table 129: Operating Environment
Parameter Description
Operating Temperature 0°C to 40°C
Humidity Up to 85 %, non-condensing
Storage -20°C to +70°C