What’s inside a WebWayOne SPT?

I managed to find a reasonable resolution image of a WebWayOne SPT (supervised premises transceiver, the device that communicates with the ARC (alarm receiving centre)). Just some quick notes about what is on it.

Annotated PCB

Annotated PCB

The Coldfire processors have a hardware encryption acceleration engine on them, which suggests that some fairly heavy duty encryption is happening.

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