[UK-CONTEST] USB to Parallel Adapter

[G3SJJ]

This may be logical or just too simplistic but if you look at the 
pin-outs for J9 on the DX Doubler only a small number of connections are 
actually made.

For my case, assuming N1MM, Band Data for Topten Band Decoder taken from 
FT1kMP/K2, no paddle input or CW keying required as using WinKey via 
mHam Keyer, no Early PTT, then the pins which actually need to carry 
through to the USB are only 14 (Radio 1/2) and 25 (Ground). So :

A - Is it possible to identify if Pin 14 is carried though? What is this 
reference parallel printer being connected?

B - Do any other changes of state on J9 affect the outputs of DXD which 
might present a problem? If so, it may be possible to disable them 
inside. I haven't taken the cover of yet, but if J9 is hardwired then it 
is OK, or maybe in the 25 way plug on the adapter.

Chris G3SJJ



Clive Whelan wrote:
> Hi Stewart
>
> I am not aware of any such devices that work at all for our sort of apps. Those advertised seem to be aimed purely at
> the printer market, with other pins/functions disabled. Even dedicated controllers such as the DXdoubler require a hard wired parallel port to control switching with the "industry standard" NA protocol.
>
> The MK2R(+) of course does everything via a single USB port, but there is an awful lot of electronics in the box to
> achieve that. Furthermore it could seriously damage your wealth ( mine has been irreparably damaged!). However it is
> of course peerless.
>
> 73
> Clive
> GW3NJW
>
> -----Original Message-----
> From: uk-contest-bounces at contesting.com
> [mailto:uk-contest-bounces at contesting.com]On Behalf Of
> Cooper, Stewart
> Sent: 30 May 2007 08:49
> To: uk-contest at contesting.com
> Subject: [UK-CONTEST] USB to Parallel Adapter
>
> Does anyone have experience of using a USB to parallel adapter in the control of an SO2R box, keying, etc. Any recommendations?
> 73
> Stewart
> GM4AFF
>