Neoway M660 User Manual

Also see for M660: At command guide User manual

Neoway M660 User Manual Manual pdf 21 page image

Shenzhen Neoway Technology Co., Ltd. Page 21 of 325) Pull DTR high, the module will exit from sleep mode actively, and furthermore enable theUART. Thus the voice call, received data, or SMS can be processed through UART. Afterprocessing finished pull it low again, to take the module back to sleep mode.6.4.2 RING1) Once the incoming voice call, the module sends out “ring” message through UART andmeanwhile outputs 250mS low pulses at 4S period on RING signal. See Figure 14.Figure 14 RING indicator for incoming call2) Upon receipt of SMS, the module outputs one 600mS low pulse. See Figure 15.Figure 15 RING Indicator for SMS6.5 SIM interfaceTable5 SIM InterfaceSignal I/O Function NoteVSIM PWR SIM supply voltage 1.8/3.0VSIM_CLK DO SIM clockSIM_RST DO SIM resetSIM_DATA DIO SIM data Internal pull up