4RF Aprisa XE User Manual page 119

12. Select the DFXS Billing Tone Level.
This option sets the DFXS billing tone output level which is defined as the voltage into 200 Ω with a
source impedance equal to the Line Impedance setting.
The billing tone voltage into 200 Ω is limited by the maximum open circuit voltage of 1 Vrms. The drop
down list reflects the maximum allowable billing tone output voltage for the Line Impedance setting
selected.
Selection
400 mV rms
300 mV rms
200 mV rms
100 mV rms
13. The DFXS billing tone Attack Ramp time can be adjusted to reduce the interference which can be
produced when a signal turns on quickly. The attack ramp time is how long the billing tone generator
takes to ramp up to full level when it is turned. The default ramp time is 1 ms.
Description
Billing tone voltage setting available for line
impedances of TN12, BT3 and TBR21.
Billing tone voltage setting available for line
impedances of TN12, BT3, TBR21 and 600 Ω.
Billing tone voltage setting available for line
impedances of TN12, BT3, TBR21, 600 Ω and 900 Ω.
Billing tone voltage setting available for all line
impedance settings.
Aprisa XE User Manual
Configuring the Traffic Interfaces | 117
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