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Generator Denso QR Bar Code in .NET The Removable Storage database

Figure 5.12: Probability of low quality access versus mean carried traffic of a CDMA based cellular network using fixed received pilot power based soft handover thresholds in conjunction with 0.5 H shadowing havinga standard deviationof 3 dB for SF=16. z

ByVal FromUnits As String, _ ByVal ToUnits As String) As Decimal Dim results() As Object = _ Me.Invoke("CTemp", New Object() {Temperature, FromUnits, ToUnits}) Return CType(results(0),Decimal) End Function

vided the system is self-recoverable or can be restored by control operations. Under less severe conditions, degradation of performance is permitted; however, the unit must continue to operate as intended after the test. The product must not become unsafe under any conditions of operation. The performance criterion is different for various products. Refer to the product standard specification to determine the maximum amount of performance degradation permitted. Table 6.2 [10] details the preferred test levels and duration for voltage dips and short interruptions, where Ut refers to the test specification level. Table 6.3 [10] provides the timing of short-term supply voltage variations. 6.4.4.1 AC Mains Supply Sags/Brownouts. Sags (brownouts) are slow varying changes in voltage, sometimes over periods of hours. These disturbances are usually identified as a voltage variation. Voltage variation is an optional test requirement for conformity to the EMC directive, but is highly desired by many manufacturers to ensure the quality of their products. A brownout is another name for sag and is the term most used in North America. Brownouts can cause the input mains voltage to drop down to a low level for an extended period of time. An illustration of a brownout event is provided in Figure 6.21, where the voltage-versus-time profile for a typical brownout is 50% of nominal voltage [8].

(12.60)