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adyj1

DIY FTDI EQDIR USB Adapter - rj12 wiring?

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Hi

I'd like to make my own FTDI EQDIR USB Adapter for my new(to me) AZ GTi  mount... 

Does anyone know what the pinouts for the rj12 connector are? The 8-pin RJ45 connections are well documented, but I can't find a 6-pin RJ12 wiring diagram...

Lynx astro do make one, so I know it is possible ? 

Thanks

Ady

 

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On page 8 of the AZ-GTI manual it gives the pinout of the RJ12 connector which you can match to the known RJ45 pinout. It uses 3.3V logic. As noted on the EQDIRECT page the AZ-EQ6 and EQ8 have 3.3V logic but will happily work with 5V TTL FTDI adapters. Whether the AZ-GTI will also cope with 5V logic I don't know so it might be worth getting the 3.3V FTDI adapter to be sure it'll work. If anyone knows whether it will work using 5V logic it would be useful to know.

Alan

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11 hours ago, symmetal said:

On page 8 of the AZ-GTI manual it gives the pinout of the RJ12 connector which you can match to the known RJ45 pinout. It uses 3.3V logic. As noted on the EQDIRECT page the AZ-EQ6 and EQ8 have 3.3V logic but will happily work with 5V TTL FTDI adapters. Whether the AZ-GTI will also cope with 5V logic I don't know so it might be worth getting the 3.3V FTDI adapter to be sure it'll work. If anyone knows whether it will work using 5V logic it would be useful to know.

Alan, 

Thanks very much for your post, but there appears to be a problem with your link. When I click it, it says "Do you really want to download the manual for the THIRD time, Ady? Do you?"... ? ? ? ? 

Thanks for the pointer, exactly the info I needed - didn't expect it to be in the manual!

And thanks also for the 3.3v/5v reminder. 

Ady

 

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Glad to help Ady. Have you actually checked you haven't downloaded it twice before? :DHere's another link to the manual from skywatcherUSA if you haven't yet got it. :smile:

Here's the bit you want from the manual

125050196_AZ-GTIPinouts.png.4a6a4f339dd196ecd245a58d07b056e6.png

Alan 

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Alan,

Sorry, my humour was a bit obtuse; I meant that I've downloaded the manual a few times but didn't actually spot the pinouts,and now that someone has pointed it out I feel a bit sheepish ?? ? ... 

(I blame electronic manuals - if I'd had a paper one I'd have spotted it. Probably ?

Thanks again for your help ☺ 

Ady

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