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Re: Imagewriter II cable

william strutts writes ...
> 
> "Rubywand" <rubywand@swbell.net> wrote in message
> 3B2B6594.803C1E59@swbell.net">news:3B2B6594.803C1E59@swbell.net...
> 
 ....
> 
> > The absence of a connection to pin 5 on the Dsub-25 connector indicates
> > that the cable will, most likely, not support hardware handshaking
 ....
> 
> Oh well.  So it wouldn't have enough lines for a modem not that I plan on
> getting one.
>

     A modem would be one case where you would want all of the standard lines to be present. Mainly, you don't have to wonder if the modem is bombing because your cable is missing a key line.


 
> > About a month ago I ordered a Mac IW-1 Printer cable (950-0107) and a Mac
> > High-Speed Modem cable (950-0109) on-line from Radio Shack.
 ....

> Does the web site have different stuff than the store?
>

     Yes; some cables are not stocked in the stores.

 ....
> 
> What was the cost?
>

     The Mac High-Speed Modem (Cat.#: 950-0109) cable is $6.99. You can find the listing (for now) at ...


http://www.radioshack.com/category.asp?catalog%5Fname=CTLG&category%5Fname=CTLG%5F003%5F001%5F006%5F000&Page=1

 ....

> 
> No difference?  I found differences in protocols used.
>
 ....

     That would make a difference. My tests used Z-modem because Spectrum supports it and it is the most convenient, user-friendly protocol.

 ....

> > Of course, these results relate to just GS <--> PC transfers running the
> > When it comes to selecting a cable which works well with
> > all sorts of telecom software, support for hardware flow control and having
> > other lines connected could make a big difference in results.
> 
> Didn't you just demonstrate that it didn't make much of a difference?
> 
 ....

     Only for the particular software used. Less efficient telecom programs might not do as well under software flow control. Other software might want to use a standard RS-232 line not included in most cables. And, as mentioned earlier, it's probably a good idea to connect to a modem with a reasonably complete cable.


Rubywand