Clear-Com TW-47 - Manual (Page 23)

3 - 1 T W - 4 7 T W O - W A Y R A D I O I N T E R F A C E
3 SPECIFICATIONS
TW-47 TECHNICAL SPECIFICATIONS
dBu is an absolute measurement. 0 dBu is referenced to
0.775 volts RMS
RADIO TO PARTY LINE
LINE CHARACTERISTICS
Frequency Response 200-20KHz ± 3dB
Max Gain >=-5dBu
Distortion <=0.3%
Noise <=-70dBu
Max Level Before Clipping >=+17dBu
Green LED Threshold -22dBu ± 3dB
Red LED Threshold -16dBu ± 3dB
Input Impedance: 400Ω ± 100Ω
PARTY LINE TO RADIO
LINE CHARACTERISTICS
Frequency Response 200-8KHz ± 3dB
Max Gain J7 ON, J8 ON -12dBu ± 3dB
Max Gain J7 OFF, J8 ON +2dBu ± 3dB
Max Gain J7 OFF, J8 OFF +27dBu ± 3dB
Distortion <=0.3%
Noise <=-50dBu
Max Level Before Clipping >=0dBu