ED308 Smart employee card User manual_V2.0.0
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3.2
Buttons
No
Button/interface
Description
Remark
1
SOS button
Press and hold 3S, immediately report location and alarm information
When the platform downlink a message, motor vibrate, press 500ms
to read
Short press 3 times in succession (400ms once), broadcast signal
strength of device
2
POWER button
Press and hold 5S to turn on the machine; press and hold 8S to turn
off the machine and the motor vibrates once.
Short press 3 times (400ms once) to broadcast the battery percentage
of device
3
Function button
Press and hold 3 seconds to uplink Vehicle assistance alarm, reporting
current location immediately
Short press 3 times in succession (400ms once) to broadcast the
current time
4
Switch broadcast
language
Press and hold the "SOS" and "m" buttons for 3 seconds at the same
time. When the "power" indicator starts flashing, the language
switching is successful
5
Reset button
Short press 1s to reset the device
6
SIM card slot
Insert SIM card(2G and NB-IoT version optional)
7
USB port
Charge the device
Use for upgrade
8
Charging port
charging
Table 3.2 Buttons and interface
