AT240 Installation Guide (version 8.x hardware)
1.
Check that the back-up battery is fitted and plugged-in:
Each AT240 is supplied with a 510mAh back-up battery, which should be fixed to the PCB and
connected as shown below:
Do not attempt to remove the battery from the cover, once it has been stuck down, as prising
or bending could lead to explosion/fire and smoke.
2.
Slide the Micro SIM (3FF format) into the holder:
note orientation
Note that the AT240 powers up when the SIM is fitted
