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Universal Module Information
 
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Universal Module Information

 

This page is to give our customers information on how to connect the XtremeLink® Universal module to virtually any radio made.


 

XtremeLink® Universal Module Connector Pin-out

Xtreme Power Systems offers a harness with 3 wires having bare ends so that you can easily connect the universal module to any PPM based radio system.  The most common connection will be your radio's trainer port.  In order to attach a trainer port cable to the universal module, it will be necessary to wire the cable to our pre-made harness.   Any voltage between 3.3 volts and 30 volts can be input to the universal module.  The PPM signal must be pulled "high" by the device providing the PPM pulse, or by adding a pull-up resistor to the universal module's circuit board to provide the necessary pull-up.  The pin-out of the "standard" harness is shown below.

 

 

 

Some computer radios can supply 3.3 volts directly.  The Futaba 14MZ and 12Z radios do not provide any voltage on the trainer port, so it is necessary to obtain voltage from the original module port.  That voltage is 3.3 volts and can be used with the pin-out of the "low voltage" harness shown below.

 

 


 

XtremeLink® Universal Module Pull-up Mod

In some cases, a pull-up resistor may be required for the PPM signal to be valid.  This would be for special cases only, as all of the trainer port connections we have looked at have a valid PPM signal.  If you power up the module and the LED lights up solid orange it means that there is no valid PPM signal.

If a pull-up resistor is required, one can be carefully soldered to the board.  Normally, a "0805" package size surface mount resistor is used, although with careful soldering a leaded part could be used instead.  You will need to bridge the two larger solder pads together to enable the pull-up resistor.  See the image below for more detail.

 


Trainer Port Connections

Below is a list of known trainer port connections.  These are viewed looking at the transmitter's trainer port.  The bold text colors match the wires colors for the universal module's harness.

* indicates that a dedicated RF module exist for these radios

 

Hitec

1 Battery +
2 PPM signal
3 N/C
4 N/C
5 N/C
6 Ground

 

Example radios: Hitec Focus 4, Flash 5, *Optic 6, *Eclipse 7


Futaba (round)

1 Battery +
2 N/C
3 N/C
4 PPM signal
5 N/C
6 Ground

 

 Example radios: *9Z, *8U, *7U, *FF7, *FF8, *FC16, *FC18, *FC28

 


Futaba (square)

 

1 PPM signal
2 Ground
3 N/C
4 N/C
5 N/C
6 Battery +

 

 Example radios:  4C, 7C, 9C, FF 4, FF 7, FF 9, T6EXA

Note: 12Z and 14MZ do not have Battery + available on this port.

 


Multiplex

1 N/C
2 Battery +
3 Ground
4 PPM signal
5 N/C

 

Example radios:  All known


Airtronics / Sanwa

1 N/C
2 Ground
3 PPM signal
4 Battery +
5 N/C

 

Example radios:  RD8000, RD6000, VG400, VG600, Radiant, Vanguard

 

 

 
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