Host Engineering Forum

General Category => General Discussion => Topic started by: roscho on April 21, 2008, 03:06:19 PM

Title: max length of cable for c-more
Post by: roscho on April 21, 2008, 03:06:19 PM

hello all
I need to know what the max cable length is for the c-more screen? I am biulding a home alarm sys.
and the plc is in the basement but c-more must be by front door this is about 20 feet,i tryed to get
the plc as close as i could. ???

Title: Re: max length of cable for c-more
Post by: Greg on April 22, 2008, 09:40:35 AM

That greatly depends on the type of communication you are using and the baudrate:
     - RS232?
     - RS422?
     - RS485?
     - Ethernet?

Title: Re: max length of cable for c-more
Post by: roscho on April 22, 2008, 02:34:08 PM

Sorry i did not say what plc i was hooking it up to AD 205 (240 WITH RS232C ports). Thanks for the reply.

Title: Re: max length of cable for c-more
Post by: Greg on April 23, 2008, 09:26:18 AM

With RS232C, and a good quality cable (shielded w/good ground), and not much electrical noise (which in a house there normally wouldn't be), then you can go about 50 feet. Right at this point, and/or a little more and the signal starts to seriously deterioate. So, going 20 feet in your case should not be a problem.

Hope that helps!

Title: Re: max length of cable for c-more
Post by: roscho on April 24, 2008, 01:15:37 PM

yes it help, thanks for taking the time to reply,hope one day i can do the same.