The PC holds inside a computer that I assume is way stronger, a radio to communicate with all the SCs around and a GPRS radio to inform power usage data to the power company.
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== TLI (i actually have two of these) ==
[[File:L+G SGP+M TLI.jpg|thumb|Reading Terminal]]
The TLI (Terminal de Leitura Inteligente) stands for Smart Reading Terminal. It's a RX only device that displays power usage information. Since the meter is on top of the pole, this device is the way for the client to know how much power is being used, and for manually reading in case the wide network ever goes down. It contains a [[Z8F0421]] microcontroller, ATA5744N RF RX IC, and a CF8566T LCD driver.
It has a 6 pin debug header (but DBG is locked from factory, it must be unlocked through [[Z8 Encore BYPASS]] mode, info on that soon)
1 - DBG
2 - MAIN_PWR (Capacitive dropper output)
3 - 3V3_PWR (regulated output, MCU power)
4 - NC
5 - NC
6 - GND
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==Sources==
[https://housey2k.github.io/post-docs/SGPM-Manual.pdf Manual for the SGP+M System on my Blog]