
Appendix B PSTN Parameters by Country
IES-1248-51V User’s Guide
603
ROH tone: 480Hz -3.0dB on 60.000s
warning tone: 392Hz -17.0dB on 0.500s
494Hz -17.0dB on 0.500s
587Hz -17.0dB on 1.500s
confirmation tone: 350+440Hz -13.0dB on 0.100s off 0.100s
350+440Hz -13.0dB on 0.300s
Austria
country code: 3, Austria
law: alaw
impedance: 220ohm_820ohm_120nf
loop current: 25 mA
tax type: metering
Ring parameters:
frequency: 50.0 Hz
amplitude: 53.0 Vrms
onTime1: 1.00 seconds
offTime1: 5.00 seconds
onTime2: 1.00 seconds
offTime2: 5.00 seconds
Pulse parameters:
flashMin: 90 ms
flashMax: 500 ms
breakMin: 47 ms
breakMax: 80 ms
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