This GSM module is specially designed for 9000 series PS-9006 and PS-9048 panel. After adding PS-GSM9000 module on the bus system of the panel, it can report alarm message to alarm receiving center by PSTN or GSM line. Either of PSTN or GSM dialing can be set as primary or back-up operation. When the primary dialing has problem it can switch to the back-up dialing automatically. The panel can be ARM/DISARM or checking status by SMS message from 5 users. In addition an auxiliary output can be triggered by SMS to open your gate door or other devices. Upon alarm condition of panel, it can send alarm message to 5 preset users by SMS.