Re: RS-422 help please.

or a quick search on rs-422 on any of the major semiconductor manufturers
websites
will net you some easily interfaces chips to roll your own.. make a small
board for inside
the machine and forget about it, just input rs-232.

Erie Patsellis
Shelbyville Design & Signworks
1309 W. S. 7th Street
Shelbyville, IL 62565
(217)774-4444
visit our website at http://216.43.233.169

----- Original Message -----
From: "audiomaker2000" <audiomaker@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, May 09, 2002 7:46 PM
Subject: [CAD_CAM_EDM_DRO] RS-422 help please.


> Thanks for looking....
>
> I have a machine that uses the RS-422 protocol.
>
> The pin-"in's" for the machine's connector (AMP style) are
>
>
> Pin 1/ Function: Receive / Direction: Input / Polarity: Positive
>
> Pin 2/ Function: Receive / Direction: Input / Polarity: Negative
>
> Pin 3/ Function: Transmit / Direction: Output / Polarity: Negative
>
> Pin 4/ Function: Transmit / Direction: Output / Polarity: Positive
>
> Pin 5/ Function: Shield / Polarity: Ground
>
>
> I'm familiar to some extent with RS-232, but I'm not sure where to
> get these values from the computer. I would really like to use the
> DB-9 connector if possible, but If I have to, I could use the DB-
> 25...except my program only allows for com1-com2 communication.
>
> Any ideas how to cable this up?
> This is for a BOSS 8 Bridgeport.
>
> Thanks
> Sean
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto:
aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if
you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this as a
sister site to the CCED group, as many of the same members are there, for OT
subjects, that are not allowed on the CCED list.
>
>
>
> Post messages: CAD_CAM_EDM_DRO@yahoogroups.com
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...
> Moderator: jmelson@... timg@... [Moderator]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> bill,
> List Mom
> List Owner
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>