Phone In 6 User Handbook
19
5
TECHNICAL SPECIFICATION
TECHNIC
AL SPECIFIC
A
TION
Technical Specification
Audio Inputs
Input Impedance – Line Mode >10kΩ balanced 0dB, optimum working input
(Mix-minus audio to caller):
Input Level Range:
Adjustable 0 to +12dBu
ADC Signal to Noise:
Better than –89dbFS (RMS A-weighted at 24bit)
ADC Dynamic Range:
>96dB
ADC Distortion & Noise:
>87dB THD + N at 1kHz
ADC Frequency Response:
20Hz to 3.8kHz
Optional Digital Audio:
AES/EBU 110 Ω balanced inputs (IEC60968)
Sample Rates:
32kHz to 96kHz
0dBFS Reference Level:
12dBu or 18dBu
Audio Outputs
Output Impedance
<50Ω balanced floating 0dB, optimum working input
(Received audio from caller):
Output Level Range:
Adjustable -6 to +6dBu
DAC Signal to Noise:
Better than –85dbFS (RMS A-weighted at 24bit)
DAC Dynamic Range:
>97dB
DAC Distortion & Noise:
>83dB THD + N at 1kHz
DAC Frequency Response:
20Hz to 3.8kHz
Optional Digital Audio:
AES/EBU 110 Ω balanced outputs (IEC60968)
Sample Rates:
32kHz to 96kHz
0dBFS Reference Level:
12dBu or 18dBu
PSTN Telephone Connection
Send to Line Limiting Input:
+4dBu
Bandwidth to Telephone Line: 125Hz – 3.8kHz, -3dB ref 1kHz
Telephone Line Impedance:
Nominally 600Ω - complex impedances set via country
code
Telephone Line
300Ω to 1500Ω
Impedance Range:
Telephone Rejection:
78dB on 1kHz tone, typically 75dB on complex
waveforms, reference peak level of 0dB
Ring Detector Sensitivity:
1 ring to 8 rings
ISDN Telephone Connection
ISDN Interface:
S0 (BRI) / I.430
D Channel Protocol:
DSS1, National 1, 5ESS, JATE (INS64), AUSTEL, X.31, VN 4,
TPH 1962
B Channel Protocol:
G.711
Regulatory Approval:
CE