Re: Firecracker and USB-Serial

[isw <isw@xxxxxxxxxxx>]

In article <ZM2dnQndscoEVijRnZ2dnUVZ_hSdnZ2d@xxxxxxxxxxxx>,
 marcus@xxxxxxxxxx (marcus hall) wrote:

> In article <isw-A476ED.20491112102010@[216.168.3.50]>,
> isw  <isw@xxxxxxxxxxx> wrote:
> >In article <pJ2to.25989$4c3.10352@xxxxxxxxxxxx>,
> > "Josepi" <JRM.@xxxxxxxxxxxx> wrote:
> >
> >> Different RS-232 spec.
> >>
> >> There are two RS-232 specs. RS232C and RS232. Different voltage limits are
> >> allowed. % volts is just fine for one
> >>
> >> http://en.wikipedia.org/wiki/RS-232
> >>
> >> If you are not using DB25 connectors do not call it RS-232, call it serial
> >> interface.
> >
> >Plenty of "non-RS-232" interfaces use DB-25s.
>
> Isn't that irelevent?  Just because other interfaces have usurped use of the
> DB25 connector doesn't relate to the fact that RS-232 specifies a DB-25
> connector (hence if it isn't a DB-25 it isn't RS-232).
>
> >> Now you have to specify DTE or DCE to specify what connector you are using.
> >
> >The connector is the same; the pinout is different -- sort of. And
> >things really get confusing when you consider devices that can act as
> >either DCE or DTE (like many computers). In that case, there's no
> >*right* way to wire up the connector...
>
> Well, the DCE side is a female DB-25 connector and the DTE side is a
> male connector.  This should make the pinout unambiguous.

So what do you do with a computer, which can be either? And don't forget
all the pin-swaps...

Isaac