User manual PowerBox Competition SR2

8 PowerBox-Systems − World Leaders in RC Power Supply Systems
If a GPS III is connected to the FastTrack input, the Competition also delivers GPS
data to the transmitter.
• Graupner Hott
Set one output of both receivers to SUMD-OF16. For example, if the receiver is a
GR16/24, this will be output 8. Connect these outputs to the RX1 and RX2 inputs
of the PowerBox. If a GPS III is connected to the FastTrack input, the Competition
also delivers GPS data to the transmitter.
For the telemetry function you must connect the TELE output of the PowerBox to
the Telemetry input of one receiver.
c) Connecting the batteries
It is possible to use 2S LiPo, 2S LiIon, 2S LiFePo or 5S NiMH batteries with the
Competition SR2. We recommend that you use our PowerPaks, which feature
integral charge electronics. The fundamental rule regarding battery size is that
one battery on its own should be capable of powering the model reliably.
If you intend to assemble your own batteries please note that correct polarity is
vitally important. The unit does not include reverse polarity protection, as this
would involve performance losses.
3. SWITCHING ON AND OFF
This is the procedure for switching the PowerBox on: hold the SET button pressed
in until the LED glows red. Continue to hold it pressed in while you also press but-
tons I and II briey to conrm the switching process. This method enables you to
switch the batteries on individually; for example, in order to check that both packs
are working properly, and deliver sufcient current when all the control surfaces
are moved.
The same procedure is used to switch off.
Note: connecting a battery to the PowerBox with incorrect polarity, even very
briey, will immediately destroy the voltage regulators!
Note: only one receiver (Bind A or Bind B) can transmit telemetry!