3 ring detection and line voltage reversal, Ring detection and line voltage reversal, Figure 1: ring detection – Maxim Integrated 73M1822/73M1922 Implementers Guide User Manual
3 ring detection and line voltage reversal, Ring detection and line voltage reversal, Figure 1: ring detection | Figure 2 : ring circuit | Maxim Integrated 73M1822/73M1922 Implementers Guide User Manual | Page 16 / 26
