STP vs UTP for Video Surveillance Tutorial

Author: Brian Rhodes, Published on Aug 06, 2012

For many video system designers, deciding which ethernet cabling to use is a quick decision: go with the cheapest. However, this overlooks he possibility the cable, and the video it carries, needs extra protection against common electromagnetic interference.

Is the difference between cable types that significant? In this note, we examine shielded cable, look at how it can prevent video problems, and compare it to nonshielded alternatives.

Inside this note, we explain:

  • How Electrical Interference Affects Video Quality
  • What Shielded Cable Looks Like Compared To UTP
  • Physical Differences Between Cable Types
  • Other Names For STP
  • Typical STP vs UTP Costs
  • Use STP Against Common Sources of Interference
  • Practical Use Is Limited, But Axis Disagrees

*** **** ***** ****** *********, ******** ***** ******** ******* ** use ** * ***** ********:** **** *** ********. *******, **** ********* ** *********** *** *****, *** *** video ** *******, ***** ***** ********** ******* ****** *************** ************.

** *** ********** ******* ***** ***** **** ***********? ** **** note, ** ******* ******** *****, **** ** *** ** *** prevent ***** ********, *** ******* ** ** *********** ************.

****** **** ****, ** *******:

  • *** ********** ************ ******* ***** *******
  • **** ******** ***** ***** **** ******** ** ***
  • ******** *********** ******* ***** *****
  • ***** ***** *** ***
  • ******* *** ** *** *****
  • *** *** ******* ****** ******* ** ************
  • ********* *** ** *******, *** **** *********

[***************]

Electrical ************ ******* ***** *******

** *** ***** ************ *****, *** ******** ** ***** ** cameras *** ****, *** ****** ********* ** *** ******* ** between. **** ***** ******* ******** *****, ** *** ** * frustrating ******** ** **** ****** *** ***** ********, **** ** discover ******** *** ***** *******.

*******, ****** * **** **** ** ******* *** ******* ********* issues. **** *** ******* ** *** ***** *****:

********** ************ ** *** ******* ****** ***** **** **** ** problem. *** **** **** *** ***** ******** ******** **** *******, but ** **** *** ******* *** ******** ********* '*****'. * jacketed ***** *** ***** ** ** '**-*** *******' ***** ********* why ***** ********* ** ********* ********.

'STP' ** ********** ***** *********

* ***** ******** ********** ******* *********** *** *** ***, ** 'shielded ******* ****' ******* ******* *** ******* ***********. *** ***** below ***** *** ********** ******** **** ********* *********** **** ***** in ***:

'*********' ****** *** ** ******** **** '***** *********' ***** * single ***** ** ******** **** ** **** ****** *** ****** bundle ** *****. ***** *** ******** ** ************ **** ***** versus ***** **** *** ****** ****** ****** **** ** *** same ********, **** *** *** ********** ** *** ***** *** result ** ********* ***********.

Other ***** *** ***

*** ****** ************ *** ******** ******* **** *****, '***', ** sometimes ****** '*/***' *** '**********/****-******** ******* ****' ** '*/***' *** 'Shielded/Foil-screened ******* ****' *******. ********** *** ********** ******* **************, **** may *** ***** ********* ************* ** ******** ******** *******. *******, in ******* ***, *** '***' ************ ** **** ****** ****.

Physical *********** ******* ***** *****

*** ********* **** ********** *** ******** *********** ******* *** *** STP.

  • ******** **** ******:* **** ***** ** ****, ******** ********, ********* **** *****. This ***** ** ***** ****** *** '*****', *** **** ** properly **********. ******* ** ********** ****** *** ***** *** ******* the ******** **** *** ******** ** ********.
  • ******* ******:*** ***** ****** ** **** ******** *** ****** *** ******** to *** ***** ******. ** * ******, * ******* ******* insulating ****** ** ******, ***** **** ********. *******, *** ** heavier *** ******* ******** ** ***, *** *** ** **** difficult ** ******* ** * ******.
  • *****, **** ******, *** ***********:********* ** *** ***** ************ *** ***** ** ***, ***** features *** ** ******* *** ******** ***** ** *** *******. This ******** ******* ******* '****' ******, ******* ** *** ********* the ******, *** ********** ********** ********* *****. ***** ** ** outdoor ***** ***** **** * ****** **** **** ********* *** pairs **** ********* ****** *** ******.

Image result for network cable core

STP ** *** ********** ***********

***** ********** ******** ******** ******* *** **** ********** **** *** does *** *******.

  • *** **********:*** ******* ********* ** ********* ** ********** **** **************************** ************, ** ***. ******* **** **** ** ************ *******, *** ability *** ******* ************ ** ******** *** ***** **** *** cable ** ************* ********* ** **********.
  • ******** **** *****: ************ *** ** * '***-*** ******' ** **** ********** cabling ** * ****** ****** ** ************. ** **** ************, like ********* ******* ******* ** *************, ****** ******** ******* *** be * ************ ******* *** ************ **** ****** ***** *********** off. *****, *** ******** ** **** ********* ********* ** ********** this *******.

Cost **********

***** *** **** ******* $** ** $** *** ****** ******** to *** *******, ******** ***** **** ** *** ****, ***** on *** ***** ***** ~**% **** **** *** *** ********* on *** **** ********** ***** ** ****** ******* ** ****** for *** ******, ******* *** **** ***** ***.

Use *** ******* ****** ******* ** ************

******, *** ****** ** **** ***** ************ ***** ** * problem. ** **** ** ***** ***** ****** ******** *** *****, here *** **** ****** ***** ************ ***** ****** ***** *******:

******** ** **** ******* ******

***** ****** *** ********* **** **** ************ **** **** *** parallel ** **** *****. **** ****** *** * ********* ******** apart ****** * ******** ******* *** ** * ****** ** video ************.

***** ** **** ************* ****** *** **** ** *** *** in **** ********* *** *****, **** ********* ** **** ********** design ****** **** *** **** ******* ******* *** **** *******, regardless ** *** ** ** ********* ***** ** *******, **** ** *** ***** *** *****.

**** ********* *******

**** ******* *** **** ****** ***************** ******** **** ******** ******, power ************, ******** *****, ** ********* *** ********* *********** ***. Especially *** ********** **********, ***** ***** ******* *** ******, ********* cable **** ** ** ********* **********.

***** ******* *** ************* ** ***** '*********' **********, ** ***** ******** ** ******** ****** *** *********. Cable ********* ** ******* **** **** *********, *********** ****, **** maglocks, ********** **********, *** ********** ********* *** ******** ****** ************ to ******* ***** *******.

*** *******/****** *******

****** *** ******* ************* ****** ******* **** ************. ***** * token ******* *** *** ** *********** ****** ** ** * problem, ******** **** **** **** **** ******* ********* ** ************ should ** *** ***** *** ** ********* ********.

**************** ********

*** ** *** ******* ******* ** *** *** ****** ***** fixtures. ***** *** ****** ********** ** ******** ****** ******* ******** of ***** ********, ** ******* ****** ** *** ** ****** cable ***** *********, ** ****** ** *** ***** *** *****.

**** *****, ***** *** **** ********* ***** ******** '********* ** others' ** ** ** **** *** *****. ** **** *****, cabling ********** ********* ** *** ****** ** ***** ******* ******** that ****** ******* ***** *** ***** ******* ** *********.

Practical *** ** *******

** *** **********, *** **** ******** ** *** ************ ******** cabling *** **** *** ***** ***, *** ** **** ** significant ****** ** ******. ***** ********** ******** **** *** *********** shield ** ************ ************ ** ********** *** ********** ****** "**** *********", ** ** ********* ******** *** ***** ******* ******.

Axis: ********* *** *** ********

******** ***** **** ************** ******** ******** *** ** *** ********* for ******* ******* *** ************ **********:

"*** ************** ** ** ****** ** *** ******* ***** ** demanding ********** ************. ******** ** ********* ****** ************ *** ***** the ******* ***** ** ******* ** ******** **** ********** ***** supply ****** ** ***** ***** ********* ***** **** ** ****** or ********** *** ** ***** ******** ** *** ****** ** its *****.It ** **** ********* to use an STP cable where the camera is used outdoors or where the network cable is routed outdoors."

**** ** * **** ********* ***** ****~**% ** *** ******* *** ********* *******. ********* ****' ************** *** ***** * *********** ******** ** overall ******* **** *** ** ****** ******** ******** ** ****** problems *****.

******, *** ********** ********* **** *** *********** *********** ** ***. The ******** *** ** *** ** ***** ******** ** *** in *** '**** ****' ***** ********** *****.

Test **** *********

***** ****** **** * * ********* ****

[****: **** ******** *** ********** ********* ** **** *** ************* revised ** ****]

Login to read this IPVM report.
Why do I need to log in?
IPVM conducts unique testing and research funded by member's payments enabling us to offer the most independent, accurate and in-depth information.

Related Reports

April 2018 IP Networking Course on Apr 19, 2018
This is the last chance to register for our IP Networking course. Register now. NEW - 2 sessions per class, 'day' and 'night' to give you double...
Forced Door Alarms For Access Control Tutorial on Apr 04, 2018
One of the most important access control alarms is also often ignored. "Forced Door" provides a vital and even critical notification against...
Understanding The 20+ Lock Functions on Mar 27, 2018
While locks can look the same, they may operate in significantly different ways. To make understanding them simpler, widely adopted industry...
Network Racks For Surveillance Guide on Mar 21, 2018
In this guide, we look at network rack infrastructure, one of the fundamentals of IP video surveillance. Inside, we cover: What is a rack unit...
'As-Built' Drawings Tutorial on Mar 20, 2018
Closeout documentation can be invaluable for future expansions or maintenance work, and 'as-built' drawings are a key aspect for finishing projects...
Access Control - Restricted Keys Guide on Mar 15, 2018
Not all doors, even in larger facilities, can justify using electronic access control. And even for doors that do have electronic access control,...
Rack Mounting NVRs Tutorial on Mar 14, 2018
Rack mounting recorders is common in professional systems, but manufacturers are making it difficult, with simple design failures causing multiple...
Vehicle Gate Access Control Guide on Mar 07, 2018
Vehicle gate access control demands integrating myriad systems to keep unauthorized cars out. Everything from high voltage electrical, to...
Cellular (4G / LTE / 5G) For Video Surveillance Guide on Mar 06, 2018
In this report, we explain using cellular for video surveillance including: 4G vs LTE vs 5G 4G standards 5G future Advantage: Placing cameras...
Door Position Switches (DPS) For Access Control Tutorial on Mar 05, 2018
Door position switches do not get enough respect. They solve a major problem of access control systems yet are frequently ignored or...

Most Recent Industry Reports

Chinese Manufacturer Kickstarter Campaign Huge Success (EverCam) on Apr 23, 2018
In a week, a Chinese manufacturer's expertly done Kickstarter campaign has received $1.4 million in pledges, an incredible amount for a video...
Favorite Biometrics 2018 on Apr 23, 2018
Biometrics are on the rise, or at least integrator opposition to them is declining, according to new IPVM integrator statistics.   Almost half of...
Dahua and Hikvision Win Over $1 Billion In Government-Backed Projects In Xinjiang on Apr 23, 2018
Dahua and Hikvision have won well over $1 billion worth of government-backed surveillance projects in China’s restive Xinjiang province since 2016,...
May 2018 Camera Course on Apr 20, 2018
Save $50 on early registration until this Thursday, the 26th. Register now (save $50) for the Spring 2018 Camera Course This is the only...
Global Real-Time Video Surveillance - EarthNow on Apr 20, 2018
A new company, EarthNow, with backing from Bill Gates, Airbus and more, is claiming that: Users will be able to see places on Earth with a delay...
Dedicated Vs Converged Access Control Networks (Statistics) on Apr 20, 2018
Running one's access control system on a converged network, with one's computers and phones, can save money. On the other hand, hand, doing so can...
April 2018 IP Networking Course on Apr 19, 2018
This is the last chance to register for our IP Networking course. Register now. NEW - 2 sessions per class, 'day' and 'night' to give you double...
Rare Video Surveillance Fundraising - Verkada $15 Million on Apr 19, 2018
Fundraising in video surveillance (and the broader physical security market) has been poor recently. Highlights are few and far in between...
'Best In Show' Fails on Apr 19, 2018
ISC West's "Best In Show" has failed. For more than a decade, it has become increasingly irrelevant as the selections exhibit a cartoon level...
Security Camera Cleaning Frequency Statistics on Apr 18, 2018
150+ integrators told IPVM how often they clean cameras on customer's sites and why.  Inside we examine their answers and break down feedback...

The world's leading video surveillance information source, IPVM provides the best reporting, testing and training for 10,000+ members globally. Dedicated to independent and objective information, we uniquely refuse any and all advertisements, sponsorship and consulting from manufacturers.

About | FAQ | Contact