RS-232 Compatibility Across Elecraft Devices?

[WD6DBM]

Before making up more cables, does anyone know what the compatibility is of various Elecraft RS-232 cables?  In other words, can I use the same cable with my W1, W2, XG-3, and KX3?  These would be cables with a 3.5mm stereo plug on one end and a DB-9 on the other.  If not all are compatible, which ones can be shared?

Thanks,

Eric WD6DBM
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[Dick Dievendorff]

Yes. And the KAT500 as well

Dick

On Nov 8, 2012, at 14:33, eric norris <[hidden email]> wrote:

> Before making up more cables, does anyone know what the compatibility is of various Elecraft RS-232 cables?  In other words, can I use the same cable with my W1, W2, XG-3, and KX3?  These would be cables with a 3.5mm stereo plug on one end and a DB-9 on the other.  If not all are compatible, which ones can be shared?
>
> Thanks,
>
> Eric WD6DBM
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[Don Wilhelm-4]

Eric,

All those you mentioned use the 3.5mm stereo connection containing TXD,
RXD and Signal Ground.  Al; those devices can share the same cable.

The K2 needs a special cable with a DE-9 connector that has only TXD,
RXD and Signal Ground.  Do not use a standard serial cable with the K2,
damage to the K2 can result.  Note that the K2 DE-9 connector is labeled
AUX I/O rather than RS-232 - there are unique K2 internal signals in
that connector as well as the 2 RS-232 lines.

The K3 has a DE-9 connector and is labeled RS-232, so you can use a
standard serial cable with the K3.

I think that covers most cases of the Elecraft gear and the RS-232
connections.

73,
Don W3FPR


On 11/8/2012 5:33 PM, eric norris wrote:
> Before making up more cables, does anyone know what the compatibility is of various Elecraft RS-232 cables?  In other words, can I use the same cable with my W1, W2, XG-3, and KX3?  These would be cables with a 3.5mm stereo plug on one end and a DB-9 on the other.  If not all are compatible, which ones can be shared?
>
> Thanks,
>
>

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[Jon Kåre Hellan]

Electrically, are the "real" RS-232 (+/- 12V) or TTL level (0 / 5 V)?

Jon LA4RT

On 11/09/2012 01:25 AM, Don Wilhelm wrote:

> Eric,
>
> All those you mentioned use the 3.5mm stereo connection containing TXD,
> RXD and Signal Ground.  Al; those devices can share the same cable.
>
> The K2 needs a special cable with a DE-9 connector that has only TXD,
> RXD and Signal Ground.  Do not use a standard serial cable with the K2,
> damage to the K2 can result.  Note that the K2 DE-9 connector is labeled
> AUX I/O rather than RS-232 - there are unique K2 internal signals in
> that connector as well as the 2 RS-232 lines.
>
> The K3 has a DE-9 connector and is labeled RS-232, so you can use a
> standard serial cable with the K3.
>
> I think that covers most cases of the Elecraft gear and the RS-232
> connections.
>
> 73,
> Don W3FPR
>
>
> On 11/8/2012 5:33 PM, eric norris wrote:
>> Before making up more cables, does anyone know what the compatibility is of various Elecraft RS-232 cables?  In other words, can I use the same cable with my W1, W2, XG-3, and KX3?  These would be cables with a 3.5mm stereo plug on one end and a DB-9 on the other.  If not all are compatible, which ones can be shared?
>>
>> Thanks,
>>
>>
>
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[Jim Rhodes-2]

They work well with regular 232 port, so I assume that is what they are.
Don't know the exact voltage swing, probably could work fine with quite a
bit less than +/-12V, but real 232, not TTL.

Jim K0XU Sent from my Xoom tablet
On Nov 9, 2012 2:38 AM, "Jon K Hellan" <[hidden email]> wrote:

> Electrically, are the "real" RS-232 (+/- 12V) or TTL level (0 / 5 V)?
>
> Jon LA4RT
>
> On 11/09/2012 01:25 AM, Don Wilhelm wrote:
> > Eric,
> >
> > All those you mentioned use the 3.5mm stereo connection containing TXD,
> > RXD and Signal Ground.  Al; those devices can share the same cable.
> >
> > The K2 needs a special cable with a DE-9 connector that has only TXD,
> > RXD and Signal Ground.  Do not use a standard serial cable with the K2,
> > damage to the K2 can result.  Note that the K2 DE-9 connector is labeled
> > AUX I/O rather than RS-232 - there are unique K2 internal signals in
> > that connector as well as the 2 RS-232 lines.
> >
> > The K3 has a DE-9 connector and is labeled RS-232, so you can use a
> > standard serial cable with the K3.
> >
> > I think that covers most cases of the Elecraft gear and the RS-232
> > connections.
> >
> > 73,
> > Don W3FPR
> >
> >
> > On 11/8/2012 5:33 PM, eric norris wrote:
> >> Before making up more cables, does anyone know what the compatibility
> is of various Elecraft RS-232 cables?  In other words, can I use the same
> cable with my W1, W2, XG-3, and KX3?  These would be cables with a 3.5mm
> stereo plug on one end and a DB-9 on the other.  If not all are compatible,
> which ones can be shared?
> >>
> >> Thanks,
> >>
> >>
> >
> > ______________________________________________________________
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:[hidden email]
> >
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> > Please help support this email list: http://www.qsl.net/donate.html
> >
>
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[Don Wilhelm-4]

Jon,

In the K2 and K3, the levels are "real RS-232",  For the others, while
they will tolerate up to the maximum RS-232 levels (+/- 25 volts) the
driving signal will not go negative, and the positive excursion is only
5 volts.

73,
Don W3FPR
On 11/9/2012 3:38 AM, Jon K Hellan wrote:
> Electrically, are the "real" RS-232 (+/- 12V) or TTL level (0 / 5 V)?
>
> Jon LA4RT
>
>

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