Pin
Name
Description
J2-2
TXD
This pin is the RS232 serial output. Data from this pin is transmitted at 19.2 kb/s, using 8 data bits, no parity,
and one stop bit. This pin is inactive in the router mode.
J2-3
RXD
This pin is the RS232 serial input. Data to this pin must be sent at 19.2 kb/s, using 8 data bits, no parity, and
one stop bit. This pin is inactive in the router mode.
J2-5
GND
This is the RS232 ground.
J5-1
VBUS
This pin is USB power.
J5-2
D-
This pin is USB D-.
J5-3
D+
This pin is USB D+
J5-4
GND
This pin is USB ground.
J5-5
GND
This pin is USB ground.
J5-6
GND
This pin is USB ground.
J4-1
VIN
This pin is the power supply input. The minimum input voltage to this pin is 3.1 V, and the maximum input to
this pin is 14.0 V.
J4-2
GND
This pin is power supply ground.
3
Pin Descriptions
