Solved

rs432 and shielded twisted pair cabling

Posted on 1998-08-05
6
2,205 Views
Last Modified: 2010-04-29
Upto which length i can take RS432 cable and STP cable.Which one is better from cross-talk point of view
0
Comment
Question by:mohitmatta
  • 3
  • 2
6 Comments
 
LVL 6

Expert Comment

by:joe_massimino
ID: 1122319
Maybe you should say what your doing with the cable.  Twisted pair cable is best for networking, it's not needed for serial communication since serial communication is a totaly different animal.  I did not find any reference to RS432 in my IEEE manual, where did you get it?  
A little more detail from you could go a long way in getting a useful answer here.
0
 
LVL 2

Expert Comment

by:warmcat
ID: 1122320
He means RS423.  Mohi, you ought to make up a cable with both, and measure the crosstalk with a 'scope.  The max length you can take your signal and still be able to decode it depends mainly on the driver on-resistance.

0
 
LVL 6

Expert Comment

by:joe_massimino
ID: 1122321
The length of your cable depends on the shielding, and operating conditions.  You can only test each to see if it meets your requirements.  The published operating parameters of all cables are based on ideal conditions. Where someone might not think 200 feet would be far for RS232, it is very far when the run is through a Power Plant and three generators running at full power out. If you state the length, and working conditions of your cable we could give you more specific information.
0
Comprehensive Backup Solutions for Microsoft

Acronis protects the complete Microsoft technology stack: Windows Server, Windows PC, laptop and Surface data; Microsoft business applications; Microsoft Hyper-V; Azure VMs; Microsoft Windows Server 2016; Microsoft Exchange 2016 and SQL Server 2016.

 
LVL 3

Expert Comment

by:sugdenj
ID: 1122322
Another major factor is data transmission speed.  The faster the data rate, the short the effective distance.
0
 
LVL 6

Accepted Solution

by:
joe_massimino earned 20 total points
ID: 1122323
How about some feedback on this?

The length of your cable depends on the shielding, and operating conditions.  You can only test each to see if it meets your requirements.  The published operating parameters of all cables are based on ideal conditions. Where someone might not think 200 feet would be far for RS232, it is very far when the run is through a Power Plant and three generators running at full power out. If you state the length, and working conditions of your cable we could give you more specific information.
 

0
 
LVL 2

Expert Comment

by:warmcat
ID: 1122324
suggs, you're right.  But the reason that the transmission speed has an impact is that faster bitrates allow for less degradation of the higher frequency components of the edges (ie, less time per bit has less time to allow for degraded slew rates on the edges).  The extent of attenuation of the higher frequency components of the edges on a particular cable is directly related to the line driver on-resistance.
0

Featured Post

Simplifying Server Workload Migrations

This use case outlines the migration challenges that organizations face and how the Acronis AnyData Engine supports physical-to-physical (P2P), physical-to-virtual (P2V), virtual to physical (V2P), and cross-virtual (V2V) migration scenarios to address these challenges.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

I use more than 1 computer in my office for various reasons. Multiple keyboards and mice take up more than just extra space, they make working a little more complicated. Using one mouse and keyboard for all of my computers makes life easier. This co…
This article outlines why you need to choose a backup solution that protects your entire environment – including your VMware ESXi and Microsoft Hyper-V virtualization hosts – not just your virtual machines.
Along with being a a promotional video for my three-day Annielytics Dashboard Seminor, this Micro Tutorial is an intro to Google Analytics API data.
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question