User manual

EXTERNAL CONNECTOR DESCRIPTION:
PWR_JACK:
Pin # Signal Name
1 Power Input
2 GND
Polarity doesn’t matter as there is diode bridge.
USB:
Pin # Signal Name
1 +5V_USB
2 D-
3 D+
4 GND
This is standard USB Type B connector.
RS232:
Pin # Signal Name
1 Not Connected
2 TX0OUT
3 RX0IN
4 Not Connected
5 GND
6 Not Connected
7 Connected to R2IN
8 Connected to T2OUT
9 Not Connected
This is standard DB9 RS232 female type connector.