[GreenKeys] USB-teletype Report on Win 10

Mon May 9 15:35:23 EDT 2016

confused....  no giant resistor on the board.  what    board are  we  
discussing? do you mean  r9?  that little  thing is  really  2  watt?    ok.... 
remember I am  used to stuff  with color bands on them  have no   experience  
with surface mount  stuff <<grin!>>

ok  on the baud  rate I mean the  usb  seemed to auto  baud, i one  machine 
 set  term program  for  9600  baud and it  worked

other  system i walked th board over to tem program set   for  2400 baud 
and it  worked

which means the usb auto senses the   terminal program baud   rate>?

In a message dated 5/9/2016 11:33:56 A.M. US Mountain Standard Time,  
epvgk at limpoc.com writes:

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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