SimPal -T420 User Manual page 17

The GSM LED will be flashing slowly for about 15 seconds, and turn to slowly breathe
status and beep ring, breathe LED means the socket already register GSM network, its
ready to working.
The socket default power output is OFF.
2. Insert the plug of electronic appliance in the SimPal-T420 electrical outlet.
3. M button (See 5 on Figure1) can be pressed for about one second to switch on or off the
socket output.
After adding user numbers to the socket, users can send SMS command or make calling to
control the power supply output.
Note:
1.If the GSM indicator light is flash slowly all the time, which imply the SIM card
working abnormally, all functions of this socket are invalid.
2.Check GSM network signal of the using place:
● GSM network's signal strength may affect the socket feature. Therefore, before
using, the user should ensure that SimPal-T420 is used in an area with a strong
GSM network signal (CSQ higher than 12).
● For the first time use, the user should perform a test-run by sending SMS to the
socket. This allows the user to check the GSM network connection of the
socket.
SimPal-T420/T20 4G POWER SOCKET USER MANUAL
16