Название файла: Simel_gsm_v1.0.pdf
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Then the device will send SOS SMS to preset specific numbers and then dial the numbers in circles until the call is picked up. At the meantime, the device will upload SOS alarm data to the server. Example: The telephone number is the first SMS alarm telephone number. When vehicle power is off, ACC status is low, and if the lead time of low ACC is more than 10 minutes (settable), device will activate security alarm. External power off/failure, Z1-Z3 will be off Z4: Arm LED indicator. When the Z4 ARM LED is twinkling, you can press the button to enter into arm status quickly. b. Press the button can disarm, the host make two beep sound, and LOCAL LED and REMOTE LED are off.