buddy cable - Futaba square connector

[MariusArgona]

Hi,

I'm looking for the schema of the Futaba buddy cable. I have the two square connectors.

Actually, i have only this information:

http://users.belgacom.net/TX2TX/tx2tx/image/fig3-03.gif

I tried to make the cable myself, but it didn't work. When i switch on the first transmitter, the second one should normally switch on automatically... but it does not.
Here is what i did:

I used a 5 wires cable and i connected:
PLUG1 - OUT pin (#3) <----------------> IN pin (#6) - PLUG2
PLUG1 - IN pin (#6) <-----------------> OUT pin (#3) PLUG2
PLUG1 - (V)oltage pin (#4) <-------------> (V)oltage pin (#4) PLUG2
PLUG1 ground pin (#2) <-------------> ground pin (#2) PLUG2

In fact, i just copy what is explained for the Futaba round connector.

http://users.belgacom.net/TX2TX/tx2t...e/fig7f-01.gif

Any help is welcome,

M.

[wlfk]

Did you manage to find the square connectors separately anywhere? Do you have a part number?

K

[MariusArgona]

I baught my Futaba square connectors to eRC Market. This shop sells mainly on the internet but it's also a local rc models shop (for people leaving in Brussels).

I checked on the site but i found no trace of them. Don't hesitate to send a mail to the shop owner (Alex). It's not the first thing that he can supply without being available on the site (i don't know the reason).

http://www.rcmarket.org/home.php

Ho yes, it's the real connectors coming from Japan (not the copy in a poor plastic quality) . They are branded QQQ with reference E6-192.

He sells, as well, a very good quality wire for the persons who like to make their battery packs themself.
I had so much difficulty to find a good silicon cable with a section of 4mm. If i'm not wrong, it's a Robbe (Futaba) product.

I joined a picture in case of...

M.

[wlfk]

Thank you very much - that's useful.

Incidentally, getting back to your original question...

Presumably the power connectors should be quite easy to identify using a multimeter. I would imagine that if you get the + and - correct then the other transmitter should turn on, even if there's no signal. Some of the signal lines might also be at 0v or +something volts. In this case, you could use a resistor (e.g. 1 kiloohm) between them to see whether this changes the voltage. If so, then it's a signal line rather than power.

The signal transmission line should give you a value between 0v and the +v voltage - it will be high some of the time and low some of the time depending on the signal, and your multimeter will read the average.

The RX line, I can't help you with.

K

[MariusArgona]

Ok thx.

I think i'd better to find an existing buddy cable and test the connectivity with a volt tester.

[MariusArgona]

I tested an existing cable. Here is the result:

PLUG1 - OUT (#3) <----------------> IN (#6) - PLUG2
PLUG1 - IN (#6) <-----------------> OUT (#3) - PLUG2
PLUG1 - Switched (V)oltage (#5) <-------------> Switched (V)oltage (#5) - PLUG2
PLUG1 - ground (#2) <-------------> ground (#2) - PLUG2

[heliphil]

Yes thats correct pin 5 to pin 5

[lubaka]

Hi, can somebody tell me how can I disassemble a square connector E6-192.
10x

[mingming]

Originally Posted by MariusArgona

I tested an existing cable. Here is the result:

PLUG1 - OUT (#3) <----------------> IN (#6) - PLUG2
PLUG1 - IN (#6) <-----------------> OUT (#3) - PLUG2
PLUG1 - Switched (V)oltage (#5) <-------------> Switched (V)oltage (#5) - PLUG2
PLUG1 - ground (#2) <-------------> ground (#2) - PLUG2

Hi, does it apply to 14SG (Master) to 8FG ( student)?