![Lantronix M110 Series Скачать руководство пользователя страница 56](http://html.mh-extra.com/html/lantronix/m110-series/m110-series_command-reference-manual_675725056.webp)
14: Troubleshooting
14.1
The modem’s LED does not light
–
Check if the modem has been properly connected to a 5-32V power supply
–
Check if the power connector is properly inserted
–
Check the fuse in the power cord
14.2
The modem’s GREEN LED blinks but does not become stable
for a long time after power up
–
Check if a valid SIM card has been properly inserted
–
Check if the SIM card has been locked (refer to AT+CPIN command in AT command guide)
–
Check if the external power has been properly connected to the modem
–
Check if the network coverage is available
14.3
The modem does not respond to the terminal program
–
Check if the RS-232 cable has been properly connected
–
Check if your program has proper settings. Factory setting of the UART port of the modem is:
•
115200 bps
•
8 data bits
•
1 stop bit
•
no parity bit
M110 Series Cellular Modem mPACK Command Reference
55