Re: [M100] Full Null Modem Cable Cottage Industry?

[John R. Hogerhuis]

If you were building one I would recommend an all in one cable that hooks
straight from a USB port to any model t particularly the model 100 with no
adapters necessary.

Also it should be full null rather than defeating flow control as the old
complink cable did in order to support programs like HTERM which rely on
flow control.

And ftdi is the only way to go on Windows.

Maybe a very small pcb that can be built into a thin hood shell with a
surface mounted ftdi chip and max232?

All that said you could accomplish mostly the same thing by simply
aggregating the proper OTS parts and software and offering it for sale as a
package with documentation. That way it takes out all the research and
guesswork and that's the real trouble.

-- John.

Re: [M100] Full Null Modem Cable Cottage Industry?

[Kurt McCullum]

I can't check all the details right now but I believe this is the USB to 
db25 male null modem cable I posted about a few months back. Though the 
price at that time was $25 not $45.


http://www.ebay.com/itm/FTDI-USB-DB-25-Male-Serial-RS-232-Null-Modem-with-Full-Modem-Handshake-Cable-/161782416490?hash=item25aafbc46a:g:U84AAOSwyQtV2kfV

Also, I think the housing is too thick for the M100 but there was 
somebody on the list that tested it with both the 102 and 200 and it 
worked fine.


Kurt

On 12/2/2015 9:00 AM, John R. Hogerhuis wrote:
If you were building one I would recommend an all in one cable that 
hooks straight from a USB port to any model t particularly the model 
100 with no adapters necessary.


Also it should be full null rather than defeating flow control as the 
old complink cable did in order to support programs like HTERM which 
rely on flow control.


And ftdi is the only way to go on Windows.

Maybe a very small pcb that can be built into a thin hood shell with a 
surface mounted ftdi chip and max232?


All that said you could accomplish mostly the same thing by simply 
aggregating the proper OTS parts and software and offering it for sale 
as a package with documentation. That way it takes out all the 
research and guesswork and that's the real trouble.


-- John.

Re: [M100] Full Null Modem Cable Cottage Industry?

[David Szasz]

Yes, I have been looking into Ftdi and max232  since I'm getting into a
homebrew (i.e. serial) Arduino project as of late. This has similar
problems to communication with a m100 type machine.

How many of these cables, dongles would the community need per year?

Thanks
Dave  NV3F

On Wed, Dec 2, 2015 at 12:00 PM, John R. Hogerhuis  wrote:

> If you were building one I would recommend an all in one cable that hooks
> straight from a USB port to any model t particularly the model 100 with no
> adapters necessary.
>
> Also it should be full null rather than defeating flow control as the old
> complink cable did in order to support programs like HTERM which rely on
> flow control.
>
> And ftdi is the only way to go on Windows.
>
> Maybe a very small pcb that can be built into a thin hood shell with a
> surface mounted ftdi chip and max232?
>
> All that said you could accomplish mostly the same thing by simply
> aggregating the proper OTS parts and software and offering it for sale as a
> package with documentation. That way it takes out all the research and
> guesswork and that's the real trouble.
>
> -- John.
>

Re: [M100] Full Null Modem Cable Cottage Industry?

[Donald Kyllo]

Hi Kurt,
I have one of these cables and yes, the housing is too thick for the 
M100.  It works fine for the 102 and 200.


Don

On 12/02/2015 09:50 AM, Kurt McCullum wrote:
I can't check all the details right now but I believe this is the USB 
to db25 male null modem cable I posted about a few months back. Though 
the price at that time was $25 not $45.


http://www.ebay.com/itm/FTDI-USB-DB-25-Male-Serial-RS-232-Null-Modem-with-Full-Modem-Handshake-Cable-/161782416490?hash=item25aafbc46a:g:U84AAOSwyQtV2kfV 



Also, I think the housing is too thick for the M100 but there was 
somebody on the list that tested it with both the 102 and 200 and it 
worked fine.


Kurt

On 12/2/2015 9:00 AM, John R. Hogerhuis wrote:
If you were building one I would recommend an all in one cable that 
hooks straight from a USB port to any model t particularly the model 
100 with no adapters necessary.


Also it should be full null rather than defeating flow control as the 
old complink cable did in order to support programs like HTERM which 
rely on flow control.


And ftdi is the only way to go on Windows.

Maybe a very small pcb that can be built into a thin hood shell with 
a surface mounted ftdi chip and max232?


All that said you could accomplish mostly the same thing by simply 
aggregating the proper OTS parts and software and offering it for 
sale as a package with documentation. That way it takes out all the 
research and guesswork and that's the real trouble.


-- John.

Re: [M100] Full Null Modem Cable Cottage Industry?

[Georg Kaeter]

USB to serial converter with a 6ft cable can be ordered directly from the
OEM of the chip for a reasonable price. See
http://www.ftdichip.com/Products/Cables/USBRS232.htm#UC232R-10. Just a DB25
connector w/housing has to be fitted to it.

Georg
Am 02.12.2015 21:28 schrieb "Kurt McCullum" :

> Thanks for the confirmation Don,
>
> There was suggestion to use two low profile gender changers, one male/male
> and one female/female to make it work on with he M100.
>
> The $45 price tag is a bit steep. I'm not sure when it went up but that
> was the closest thing I found to the perfect off the shelf USB cable.
>
> Kurt
>
> On 12/2/2015 10:17 AM, Donald Kyllo wrote:
>
>> Hi Kurt,
>> I have one of these cables and yes, the housing is too thick for the
>> M100.  It works fine for the 102 and 200.
>>
>> Don
>>
>> On 12/02/2015 09:50 AM, Kurt McCullum wrote:
>>
>>> I can't check all the details right now but I believe this is the USB to
>>> db25 male null modem cable I posted about a few months back. Though the
>>> price at that time was $25 not $45.
>>>
>>>
>>> http://www.ebay.com/itm/FTDI-USB-DB-25-Male-Serial-RS-232-Null-Modem-with-Full-Modem-Handshake-Cable-/161782416490?hash=item25aafbc46a:g:U84AAOSwyQtV2kfV
>>>
>>> Also, I think the housing is too thick for the M100 but there was
>>> somebody on the list that tested it with both the 102 and 200 and it worked
>>> fine.
>>>
>>> Kurt
>>>
>>> On 12/2/2015 9:00 AM, John R. Hogerhuis wrote:
>>>
 If you were building one I would recommend an all in one cable that
 hooks straight from a USB port to any model t particularly the model 100
 with no adapters necessary.

 Also it should be full null rather than defeating flow control as the
 old complink cable did in order to support programs like HTERM which rely
 on flow control.

 And ftdi is the only way to go on Windows.

 Maybe a very small pcb that can be built into a thin hood shell with a
 surface mounted ftdi chip and max232?

 All that said you could accomplish mostly the same thing by simply
 aggregating the proper OTS parts and software and offering it for sale as a
 package with documentation. That way it takes out all the research and
 guesswork and that's the real trouble.

 -- John.

>>>
>>>
>>>
>>
>>
>

Re: [M100] Full Null Modem Cable Cottage Industry?

[John R. Hogerhuis]

On Wed, Dec 2, 2015 at 3:43 PM, Mike Stein  wrote:
> Presumably because PC com ports are also male and whatever you would have
> plugged into that port or the USB converter replacing it would therefore
> have a female connector; female<->female adapters are cheap. A female 25pin
> RS-232 port as in the M100 is relatively unusual, and is/was a parallel
> printer port in the PC world.
>
> m
>

Maybe anything with active electronics should be female.

Then you can use the little thin-hood couplers/gender changers to make
the final connection.

-- John.

Re: [M100] Full Null Modem Cable Cottage Industry?

[Mike Stein]

Presumably because PC com ports are also male and whatever you would have 
plugged into that port or the USB converter replacing it would therefore have a 
female connector; female<->female adapters are cheap. A female 25pin RS-232 
port as in the M100 is relatively unusual, and is/was a parallel printer port 
in the PC world.

m
  - Original Message - 
  From: Mark Wickens 
  To: Model 100 Discussion 
  Sent: Wednesday, December 02, 2015 5:44 PM
  Subject: Re: [M100] Full Null Modem Cable Cottage Industry?


  I'm still not quite sure why all the USB to Serial converters end in 9-pin 
male - so you need another cable to connect to pretty much anything.
  Is there a reason why a null-modem configuration with a 9-pin female isn't 
the norm? I can't think of one. 95% of people buying one of these things 
probably wants that configuration surely.

  Mark.



  On 02/12/15 21:06, Georg Kaeter wrote:

USB to serial converter with a 6ft cable can be ordered directly from the 
OEM of the chip for a reasonable price. See 
http://www.ftdichip.com/Products/Cables/USBRS232.htm#UC232R-10. Just a DB25 
connector w/housing has to be fitted to it.

Georg

Am 02.12.2015 21:28 schrieb "Kurt McCullum" <kurt.mccul...@att.net>:

  Thanks for the confirmation Don,

  There was suggestion to use two low profile gender changers, one 
male/male and one female/female to make it work on with he M100.

  The $45 price tag is a bit steep. I'm not sure when it went up but that 
was the closest thing I found to the perfect off the shelf USB cable.

  Kurt

  On 12/2/2015 10:17 AM, Donald Kyllo wrote:

Hi Kurt,
I have one of these cables and yes, the housing is too thick for the 
M100.  It works fine for the 102 and 200.

Don

On 12/02/2015 09:50 AM, Kurt McCullum wrote:

  I can't check all the details right now but I believe this is the USB 
to db25 male null modem cable I posted about a few months back. Though the 
price at that time was $25 not $45.

  
http://www.ebay.com/itm/FTDI-USB-DB-25-Male-Serial-RS-232-Null-Modem-with-Full-Modem-Handshake-Cable-/161782416490?hash=item25aafbc46a:g:U84AAOSwyQtV2kfV
 

  Also, I think the housing is too thick for the M100 but there was 
somebody on the list that tested it with both the 102 and 200 and it worked 
fine.

  Kurt

  On 12/2/2015 9:00 AM, John R. Hogerhuis wrote:

If you were building one I would recommend an all in one cable that 
hooks straight from a USB port to any model t particularly the model 100 with 
no adapters necessary.

Also it should be full null rather than defeating flow control as 
the old complink cable did in order to support programs like HTERM which rely 
on flow control.

And ftdi is the only way to go on Windows.

Maybe a very small pcb that can be built into a thin hood shell 
with a surface mounted ftdi chip and max232?

All that said you could accomplish mostly the same thing by simply 
aggregating the proper OTS parts and software and offering it for sale as a 
package with documentation. That way it takes out all the research and 
guesswork and that's the real trouble.

-- John.

Re: [M100] Full Null Modem Cable Cottage Industry?

[Mark Wickens]

I'm still not quite sure why all the USB to Serial converters end in 
9-pin male - so you need another cable to connect to pretty much anything.
Is there a reason why a null-modem configuration with a 9-pin female 
isn't the norm? I can't think of one. 95% of people buying one of these 
things probably wants that configuration surely.


Mark.


On 02/12/15 21:06, Georg Kaeter wrote:


USB to serial converter with a 6ft cable can be ordered directly from 
the OEM of the chip for a reasonable price. See 
http://www.ftdichip.com/Products/Cables/USBRS232.htm#UC232R-10. Just a 
DB25 connector w/housing has to be fitted to it.


Georg

Am 02.12.2015 21:28 schrieb "Kurt McCullum" >:


Thanks for the confirmation Don,

There was suggestion to use two low profile gender changers, one
male/male and one female/female to make it work on with he M100.

The $45 price tag is a bit steep. I'm not sure when it went up but
that was the closest thing I found to the perfect off the shelf
USB cable.

Kurt

On 12/2/2015 10:17 AM, Donald Kyllo wrote:

Hi Kurt,
I have one of these cables and yes, the housing is too thick
for the M100.  It works fine for the 102 and 200.

Don

On 12/02/2015 09:50 AM, Kurt McCullum wrote:

I can't check all the details right now but I believe this
is the USB to db25 male null modem cable I posted about a
few months back. Though the price at that time was $25 not
$45.


http://www.ebay.com/itm/FTDI-USB-DB-25-Male-Serial-RS-232-Null-Modem-with-Full-Modem-Handshake-Cable-/161782416490?hash=item25aafbc46a:g:U84AAOSwyQtV2kfV


Also, I think the housing is too thick for the M100 but
there was somebody on the list that tested it with both
the 102 and 200 and it worked fine.

Kurt

On 12/2/2015 9:00 AM, John R. Hogerhuis wrote:

If you were building one I would recommend an all in
one cable that hooks straight from a USB port to any
model t particularly the model 100 with no adapters
necessary.

Also it should be full null rather than defeating flow
control as the old complink cable did in order to
support programs like HTERM which rely on flow control.

And ftdi is the only way to go on Windows.

Maybe a very small pcb that can be built into a thin
hood shell with a surface mounted ftdi chip and max232?

All that said you could accomplish mostly the same
thing by simply aggregating the proper OTS parts and
software and offering it for sale as a package with
documentation. That way it takes out all the research
and guesswork and that's the real trouble.

-- John.