... -H264 coding, audio: G711A coding, tunable3. Support ADSL PPPOE, wireless WIFI, wireless TD-SCDMA/CDMA 1X/EVDO/WCDMA, DNS, DDNS4. Built-in ... area: 16*12I/O alarm1 input port, 1 output portVideo lost alarmAlarm on video lostCommunicationRS422/RS4851pc, fro PTZ control or serial ...