Re: ASAP: RS232C serial null modem

John,

You can roll your own 25DB - 9DB null-modem cable using the wiring
shown on the GE Fanuc web site.

http://www.gefanuc.com/support/cnc/2020.htm

Wayne

--- In CAD_CAM_EDM_DRO@y..., "John" <johnhe-uk@s...> wrote:
> Hello fellow minions of the CNC under world,
>
> Today I took it upon myself to call PC World (Don't ask me
why), the conversation is as follows: -
> "Hi, do you have a null modems?"
> "Sorry?"
> "NULL modems?"
> "We don't sell normal modems I don't think sorry."
> "Okay, bye bye."
> So, I visit PC world and find my null modems on the shelf
approximately two minutes after entering. I quickly find one labelled
DB 25 to DB 9 serial null, my lathe's RS232C is a DB25 and I want it
to go into the DB 9 serial on my laptop. Great! Now I notice this
same cable is also stocked elsewhere in the shop for these prices: -
> Free (No label)
> £19.99
> £9.99
> £8.99
> So now I have my £8.99, I must ask you, I do want a SERIAL null
modem and not a parallel for this job don't I? I'm not very up to the
scene on all the ports and standards associated with them. Why the
ASAP? Work it out man! I've got a CNC lathe, a PC and a cable who's
box I can't open until you reply.
>
> Thanks!
> John Heritage
>
>
> [Non-text portions of this message have been removed]