[GreenKeys] USB-teletype Report on Win 10

[epvgk at limpoc.com]

On Mon, May 09, 2016 at 04:18:02AM -0400, COURYHOUSE at aol.com wrote:
> Eric -  et al...
>  
> 1- WIN-10 - Seems  to talk  fine  to  board without  installing the little  
> inf  file like I did on  the win 7  system  .... unless it  just  found it 
> on  the memory  stick...  but I did not manualy install anything else...
> It does seem  to install to com 4 rather than com 6 as on the XP  machine 
> but  talks to the board with the flashing lights and also the setup  menu.
>  
> 2 - I was surprised it seed  the board  autobaud'ed  with  the   hyper 
> term... I transferred HYPERTERM as an experiment   from my Windows XP system and 
> seems to run on win 7 and  win 10 fine.
>  
> 3 -  explain the  resistor in series  with the loop in  detail...  what # 
> of Ohms and  wattage  20 mil what  size  for 60 mil loop... and what voltages 
>  for each?
>  
> Still   want to hook  to the tty!  but all this  pre-testing  is  fun too

Ed, 

Whether or not it needs the INF file appears random to me. Sometimes it does, sometimes
it doesn't. 

The baud rate is configured only via the setup menu. Windows' idea of the baud rate
is completely ignored because Windows has no concept of most TTY baud rates. The info
sheet shipped with the board goes into this in more detail. 

The resistor in question is the big rectangular one on the top left part of the
board. It is in series with the loop and samples the loop current as part of a divider,
stealing just enough power to turn on the input of an optocoupler. It is a 2-watt,
150 ohm resistor. 

You do not need to change it unless you are doing something really unusual. It will 
work for both 20ma and 60ma loops as is. The voltage across that resistor will be, 
by Ohm's law, approximately the loop current multiplied by the resistance (150 ohms).

eric


>  
>  
> Ed#   _www.smecc.org_ (http://www.smecc.org)  
>  
>  
>  
>  
> In a message dated 5/2/2016 1:39:27 P.M. Mountain Standard Time,  
> epvgk at limpoc.com writes:
> 
> Hi Folks  - 
> 
> The CL adapter boards are available and I'm adding them to the  Square 
> online store 
> inventory as I get them programmed and QA'd. The  production and QA 
> departments are 
> both staffed by lazy, shiftless  employees, all of which are me, so if it 
> shows as 
> being out of stock, just  try again later. I'll update if/when all 80+ are 
> really
> sold  out.
> 
> Price is dropped from $40 to $37 and I'm trying for next business  day 
> shipping if
> possible, depending on the line at the post office on my  way to work or if 
> i get
> swamped.
> 
> Store URL is:  https://squareup.com/store/epv-greenkeys
> 
> Documentation, source code,  buglist, etc are at: 
> http://heepy.net/index.php/USB-teletype
> 
> There are  also a few RTTY demod boards left, if you missed out last time. 
> NOTE: If  you want an item and aren't in the US, email me. Square doesn't 
> appear to  
> handle international sales in any useful way. We'll figure something out.  
> 
> I was hoping to be able to include a USB cable, but didn't manage to  find 
> a 
> reasonably priced bulk option so you will need to have or get a USB  Mini-B 
> cable  like:
> http://www.amazon.com/AmazonBasics-USB-2-0-Cable--Male/dp/B00NH13S44
> 
> Thanks,  
> eric
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