Quote:
Originally Posted by Pinecone
Make one.
http://www.uoguelph.ca/~antoon/gadgets/futfm.htm Futaba and Hitec at the same pinouts.


Never use a Futaba Trainer Cord with Hitec TX, whilst it may work in some intances, there are many combinations which will let the magic smoke out of one or the other TX and also does not stop RF emitting from a Hitec TX when used as a Buddy box if the crystal or module not removed.

Please also refer to recent post Hitec Buddy - Trainer Box compatibility

As Hitec USA web page is undergoing rebuild, full warning is quoted here. I have repaired several Futaba & Hitec TX which have been blown when using the two way Futaba cord.
"Important Information Regarding Trainer cord compatibility
To our valued customers,
While Hitec radios are known to be trainer compatible with other Hitec and
Futaba systems, Hitec has determined that the two-way Futaba cord is not
100% compatible with our systems and strongly suggests it not be used at any time.
Our tests show that when the Futaba trainer cord is used with a Hitec radio the slave transmitter will emit an RF signal, thus creating a potentially dangerous interference situation, and in some cases will burn up components in the slave and or master radio.
Hitec suggests that only the one-way Hitec trainer cord (#58310) be used
with Hitec radio systems for training. Failing to do so will void the
customers warranty and could create a potentially dangerous situation.
Hitec apologizes for any inconvenience this may cause, but the safety of
our customers is our utmost concern."

For correct pinouts refer to TX 2 TX See also the sub section "Buddy Boxes. Servo Leads. Flight Simulator & Interface." on my web page.

The above is taken from www.reegroups.com/forums and lists some of the reasons you should not use a Futaba trainer cord to mate with a Hitec slave or viceversa.