b.Analog Line Inpits
Frequency response: -3dB at 50Hz and 20kHz(tolerance士1dB)
Signalto Noise Ratio: >87dB (rms unweighted)
CMRR: >40dB at 1kH z
Input Range: -6dB V to 6dBV
Input Impedance: 22kohm
Input Sensivity: 0. 5 to 10 Voits adjustable(music),1V olt(paging