 X2SMS
X2SMS called SMS gateway, and GPRS Modem (SMS cat), the combination of hardware can realize the SMS alarm, SMS notification, transmit data, and other functions.
working principle: the scene of the gateway is connected "X2SMS" hardware, hardware gateway set alarm conditions, when the field device to achieve the preset stations, trigger a gateway to send alarm information, and then through the gateway of a serial port sent to the GPRS module, message finally sent by GPRS Modem to the user's phone.
SMS cat (GPRS Modem) is to support the GSM mode (mobile and unicom of 2 g Sim card). |
