iRZ MC52i-485GI, Руководство пользователя

Страница: 18 / 19

18
4. Emergencies
To facilitate the use of the modem, tracking and display of emergencies are provided.
4.1. Emergency 1 (incorrect input power supply)
Emergency 1 occurs when the input power supply deviates from the permissible value. The modem stops
working and it shuts down the GSM module power. A permanent red LED signals that the emergency has
occurred. The recovery is possible only when the input power supply is re-established.
4.2. Emergency 2 (incorrect module power supply)
Emergency 2 occurs when the GSM module power supply deviates from the permissible value. The modem
stops working and it shuts off the GSM module power. A red LED signals that the emergency has occurred
(0.5s on / 0.5s off). The recovery is possible only if the module power supply is re-established within 10
seconds after the emergency occurred. If within 10 seconds the module power supply remains incorrect (with a
correct input power supply), the modem goes into the waiting mode meaning that the modem’s power supply is
turned off, the emergency indication is preserved. The waiting mode can be terminated only after the power is
completely disconnected.
In case of repeated emergency, the modem should be serviced.
4.3. Emergency 3 (GSM module failed to start)
Emergency 3 occurs if the GSM module does not turn on or is absent. A red LED signal (0.25s on / 0.25s
off / 0.25s on / 1s off) turns on after a precise determination by the modem of the emergency situation
(~15 sec). The recovery is possible only after a successful launch of the GSM module. After 10 unsuccessful
attempts to launch the module, the modem goes into the waiting mode meaning that the modem’s power
supply is turned off, the emergency indication is preserved. The waiting mode can be terminated only after the
power is completely disconnected.
In case of repeated emergency after the modem is turned back on, the modem should be serviced.