Re: [amsat-bb] FT-736 CAT pinout needed

[Bert McClellan <bertmc@xxxxxxxxxxxx>]

John Mock wrote:

>     I have a copy of a Yaesu FT-736 manual that shows the 6 pin DIN connector
>     for the CAT interface wired as follows:

My 1st. Reply to John only was, the 2nd pin out was correct. Now after looking at
it again, This is the way mine is connected. You can do what you want. I have it
marked this way in the manual.  This has been working for about 8 years.

Bert    N7TKO

Gold Bar, WA

> Yaesu                        Mine
>
>     1. GND                1---GND
>     2. Serial In            2---+
>     3. Busy                 3---Busy
>     4. Serial Out         4---S. Out
>     5. NC                   5---NC
>     6. +13.8V             6---13.8 V
>
>     Recently, I was told that this is wrong, and that the correct pinout for
>     the CAT connector is:
>
>     1. GND
>     2. Serial Out
>     3. Serial In
>     4. Busy
>     5. NC
>     6. +13.8V
>
>     Now, I have the first pinout in black/white from Yaesu (admittedly an older
>     manual), but at the same time, I trust my second source.....  So, did the
>     pinout of the 736 CAT connector change at one time, and which one is now
>     correct, if it did???
>
>     Thanks for the help!
>
>     John KA1JMF
>
> OK, the problem may be that people can't agree on how pins on a DIN-6 are
> numbered.  The numbers on the DIN-6 connector i bought (probably from Rat
> Shack) did not agree with the pin numbers given in the manual.  So, go by
> the drawing in the manual, using pins according to the geometry given in the
> manual, not what's imprinted on the connector.  I recently did a homebrew
> CAT adapter and cable from scratch to a FT-736R, and i have successfully
> controlled the FT736 from LINUX as receiving S-meter readings from it.  So
> the diagram in the manaul appears to be correct, even if some folks number
> their pins differently.
>
>                          73's and good luck!
>
>                             -- KD6PAG  (Networking Old-Timer, RF newbie)
>
> P.S.  "Busy" means the squelch is open, and it has nothing to do with serial
> communications.  You may have to add extra delays after some CAT commands
> to insure their completion (not all, as suggested by the manual), since one
> doesn't get CTS from this device.
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