Dashboard Analog Meters and GPIO?

[Geek_Girl]

On the 2009 Dashboard, what do the analog meters correspond to on the control system? We do not see any analog inputs with 8 ports. Also, what do the "GPIO" lights stand for? On our dashboard, everything seems to be working, but analog meter 8 is on full, and the GPIO state lights are on, and every so often the lights flicker off for a second and meter 8 goes to 0 at the same time. Anyone know why? Thanks.

[wilsonmw04]

The ports correspond to the ports on the analog breakout. Port 8, when configured correctly, measures the voltage of the main battery. It's where the battery voltage display on the right hand side of the dashboard gets the information.

This is MY understanding. Please, correct me if I am mistaken.