Re: Firecracker and USB-Serial

[marcus@xxxxxxxxxx (marcus hall)]

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.

--
marcus hall
marcus@xxxxxxxxxx