Installation guide

38 M-eMTA Installation Guide
The maximum ring load should not exceed 5REN per port, 10REN per
blade, or 20REN per SBV5506 chassis (12 or 24 lines).
Telephony
Line Type 2-wire
Hook State Signaling Loop start
Maximum Loop Length 1000 ft (AWG 26/0.4 mm @ 65 °C)
DTMF Level Sensitivity Range 0 to -20 dBm
Speech Coding 64 kbps PCM, µ-law or A-law companding; supports G.711 and
other low-rate vocoders.
Line Termination Configurable based on market needs.
Loss Plan Receive (D/A) 4 dB; transmit (A/D) 2 dB (configurable based on
market needs).
Loss Plan Tolerance ±1 dB (one-way)
60/50 Hz Loss >20 dB (referenced to off-hook loss at 1004 Hz)
Ringing Wave Form Quasi-trapezoidal and sinusoidal
Ringing Crest Factor 1.2<CF<1.6
NOTE: