User Guide

Power terminals
0V and 5V
The 0V and 5V connections are
used to power and interface to
low-power control circuits.
The 5V connection is a 5v
power output. The 2x12
utilizes a 1A switching BEC to
power the onboard electronics
as well as to provide power to
your receiver and up to 4
standard analog servos. You
can power anything that requires 5V straight from the Sabertooth 2x12. There is no need for an
external BEC unless you need more than 1 Amp! The BEC will work at full rated output
throughout the Sabertooth’s operating voltage range. You can use the BEC at full capacity
whether you are running 7V or 24V in!
The 0V connection is the signal ground for the Sabertooth. In order to receive input signals
correctly, it must be connected to the ground of the device sending the signals.
Using the 0V and 5v connections to power a radio receiver in R/C mode and potentiometer in
analog mode is shown in Figures 2.1 and 2.2. If you are using multiple Sabertooths running
from the same radio receiver, only one should have the 5v line connected. You can either take
the red lead out of the connection housing or just clip the wire with a pair of cutters.
Figure 2.1: Analog input using a potentiometer
powered from terminal 5V
Figure 2.2: R/C input using a receiver powered
from terminal 5V
The 5V terminal can be used to power loads totaling no more
than 1A, like a potentiometer or a radio receiver and a servo
to two. The 0V signal must be connected to the ground of the
device generating the input signal.