STP vs UTP for Video Surveillance Tutorial

Author: Brian Rhodes, Published on Dec 20, 2017

For many video system designers, deciding which ethernet cabling to use is a quick decision: go with the cheapest. However, this overlooks the possibility 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

One Of Many Cable Tutorial Series

This tutorial is one of a number IPVM has addressing the topic of cabling. Others include: Cat 5e vs. Cat 6 for IP Cameras, Cabling Best Practices Guide, Network Cable Testing Guide, Grounding and Bonding for Video Surveillance, and more.

*** **** ***** ****** *********, ******** ***** ******** ******* ** use ** * ***** ********:** **** *** ********. *******, **** ********* *** *********** *****, *** *** ***** it *******, ***** ***** ********** ******* ****** *************** ************.

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

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

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

One ** **** ***** ******** ******

**** ******** ** *** ** * ****** **** *** ********** the ***** ** *******. ****** *******:*** ** **. *** * *** ** *******,******* **** ********* *****,******* ***** ******* *****,********* *** ******* *** ***** ************, *** ****.

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

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 *** **** ****** ***** ************ ***** ****** ***** *******:

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

***** ****** *** ********* **** **** ************ **** *** ******** to ** *** **** **** *****. **** ****** *** * compliant ******** ***** ****** * ******** ******* *** ** * source ** ***** ************.

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

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

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

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

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

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

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

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

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

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

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

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

******** ***** **** ************** ******** *** ** *** ********* *** outdoor ******* *** ************ **********:

"*** ************** ** ** ****** ** *** ******* ***** ** 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 ** ****]

Comments (23)

******* ************** ******** ******** *** ********* *** ********* * *** of *** ****** **** ** *** ***** **** ****.******* *** ****** ************ **** ****** ********* *** **** ********* in *** ********** ******* ********. ** **** *** ******** **** them, **** *** ***** ******** ***.

************* * *** ** *** ****** ******** **** *** ******** transitioned **** ****** ******* ** ** *******. ************* **** ********* that ****** *** **-*, **** *** **** *** ***/*** *******. Performance ************ ** *** ****** ******** *** **** **** ********, compared ** *********** **** ********. ******** ********, *********** **********, **** field ************, *** ********** ** **** **** *************.

***** * ********** *** ******** ** ** *** ******* ******, I ***'* ******* **'* ********* *** *** ******* *******. *** components *** *** **** ******, *** **** ***** ********* ** install. **'* *** **** *** *****, *** *** ***** ******, jacks, *** ***** ***** ** ****. **** **** *** ********** expense **** ******** ** * ******** ******** *** ************.

** **** ** ** ****. ***** ******** ******** *** ****** delivery. ** *** ******* ** *** ***** *** ******** *** other ******** ********** ******** ** ****** ****** ******** ** ******** traffic *****, *** ** *** ******* ***'* ********* *********** ****** the ************** **'* * **** ***** ** ****.

**'* *** **** *** *****, *** *** ***** ******, *****, and ***** ***** ** ****. **** **** *** ********** ******* when ******** ** * ******** ******** *** ************.

*******, *** ** **** ** ********* ******* *** ***** **** be ******** ******** ** *** ********* *** **** ** ** antenna - ******** ********* ** *** *** ***** ***** ********** than **** ******* *** *******, ****** ***.

...*** ***** **** ** ******** ******** ** *** ********* *** work ** ** ******* - ******** ********* ** *** *** cause ***** **********...

*** **** ** *** ****** **** ** *** *****, *****?

***, ** * ********** ** (*** * ** ** ***** expert) ********* ** *** ******, ** ***** ***** **** ** all **** ** ********. ********* **** ***** *** ***** ****** loops *** ***** **** ** ** ** *****-***** *********** ***** don't ********* **** **** ******** **************. ****** **** **** ** is ****** ** ***** ****** ***** ********** ** *** ** through *** ***** **** ** ********* *** **** ***?

********* ** **** ** *** *** ****, ******** *** ******** end "***** ****** ** ******" ***** ****** ********* ** ************.

*** *******, **** (******) ****** ************* ******* ********* ** *** reader, *** *** **********, ** ******. **** ****** *************, ********** PTZs, ******* ****** **** ** *** *********.

** *******, *** ****** ** **** ******** ** **** ** the ****** ****, *** *** ** **** ***** ******* ********** earth ******.

** ** ***, ** *** ******** * **** **** ***** at *** ** *** ****** *************. ** **** ******* *** and *** ********* ******* ** **** ***** *** ** *** what *********** *** ** ****. **** *** **** **** *****!

****** *** *** *******. ** ***** ** ***** ***** ********** and *************** ** ******** *** ** ***** ************ ******** ** ********** ******, *** *** '**** *********' ****** ** useful.

********** ****** *** ** **** * **** ** *********** ** *** ***** *** *** ** **** **** ** is.

********** ****** *** ** **** * **** ** *** ****...

**** ***’* *********’*****:

****** *****. *'** **** * ***** **** *** **** ** years... ***** ********... ***** ************. ******... ***** ********* ****** **** a **** ** *** **** ** * ********* ****** ** nothing ****. ***** *********!

**** = "****** **** **** ****"

***** **** ********* **** **** *** **** **** ****** ******* is ******* ** *** ***** ******* ** **** ****** *********. Not **** *** ****** ** ** ***** ** ********* ** keep ** **** ***** ********** ****. ******* **** **** ** running ***** ** ********* **** ***** **** ** *****. ********* inside *******.

******* ** **** ** ** ***** **** *** ********** ********** runs ***** *** *** ******* **** **** * ******** ********** to ****** *** **** *** **** *******. ** **** ***** the *** ******* *** ** **** ****** **% ******. ** if ***** ** * ******* ** *** *** ** *** time. ** **** **** ** *** **** ********* *****. **** expensive ** ***** **** *** **** *****.

* **** **** ******** *********** *** *** ***** *** ***** house ** *** *** *** *** ******* ************** **** **** can ***** ***** ******* ******* **** *** **********/********** **** *** all *** **** **** **-*****.

**** **** ** ****** ** ****** ****** ***** ** ****, like *** ** ***, ***. ** *******, ** ***** *** talking ***** *** ** *****. ** *** **** ****, **, 7 *** **** ******, *** **** ******* ******** ** ****.

**** * ***** ** ******, * *******, **** **** ** the ********** ***** ***** ***** **** ***** ***** (*** ** the **** ***) *** **** ******* **** ***** ** * cable *** ******* *** **** ** *** *******

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

***, *** *** ** **** *** ***** *** **** ********* instead ** ‘***’ *********** *** **** ********* ****:

***** ** ** ************* ***** ****** *******?

** *'* ***** * ** ***** **** ******, **** * use ** *** ***** ** ******* *******?

*******, ****** *** *** ********.

******* '*********' ******** ******* ******* (***) *********** **** ****** (****** loss), *** ********** ** *** *** ***** ******* ** **** as ** ** *** ***** *** ******.

** * ***** ** ************, **** ***** ** ******** ** design, *** *** ************* ** *** ****** *********** ** ****** loss. *******/**** ***** ********* (**: ***) ****** ******* (**: ****) results ** **** **** **** *** ****** ** ***** ****.

** *** **** ** *******-****/****** **** *** ********, ********* ***** reduce ****** ****, ******** *** **** *** **** ** ******* to ***** **** **** *****.

******* '*********' ******** ******* ******* (***) *********** **** ****** (****** loss), *** ********** ** *** *** ***** ******* ** **** as ** ** *** ***** *** ******.

** ***** **** * *********** ***********, * ***** ***** *** opposite, ** *** ** ***** ******* ** *********.

**** ******,******** **** ***** *** *** **** *** *****, *** ** not ******** *** ** ******-****-*************** ******* ** *** ******* ** ********.

**** *******, **** *** ***** **** ***** ** **** *** will ******* ** *********/********* ** *** ******** ** ** ***** varying ******* ****** **** *’* *** *’*. **’* **** *** extreme ***** **** ********* ** * ******* ******.

****.

*****: ** *******, *’* ****** **** *** ****** ** *** on *** ****** ****** ******* ** ** ********* ** **** of *** ******. *** **** *** ****** ******* ******* ******* as ****.

* ** ****** **** ** ****** ** ****** ************ - signal **** - ***** **** **** ****** *** ** **** important ** ******* ***** ****** **** ***** *******.

****** ** **** ** ****** *** ******** ***** ******* *** impacts. ********* ***** ******* **** ****.

********* ***** ******* *** (********** ******** ************). ****** **** ** caused ** *********** (**** ** *** ****** ******** ******* *** length ** *** ************ *****). **** ** ***** ** **** or *** *****, **** ** ***** ********** **** **** ****.

*** ***** **** ** ******* ******* ******* *** ********** **** UTP *****, ********** ** ***** ********* (******* ** ********). ***** twist ******* ****-**-**** *****-****, ***** ** ****** ******* ******* *** pairs ****** *** ***** ******. *********** *** ** ******* ** using * ******* ***** ****. *******, ** ***** **** **** have **** *********** **** ** ***** **** ******* ** **'* electrical **********. **** **** *** *** *****, **** ******** *** 24 ** *** **** *** ** **. **** ** ********* found ** ******** * ***** ***** *** ****** ****.

**** ** * ***** ****** *** ****** ******* ******* ** its ****** ****** *** *** ******** **** ** **'* *********. The ********* ****** *** *** **** ** *** ********, ***** path ****, **** ******, *** **** *** ****** ************. *** with ****** *** **** ***** **** ** ***** ***** *******, and ******* * ****** ************** ******* **** ** ** ****** connectivity.

*'* *** *********** **** *****, **** ****** ****** **** *** weeds.

*** **** ****** *** **** ***** **** ** ***** ***** comings, *** ******* * ****** ************** ******* **** ** ** camera ************.

* **** ********* ***** *** **** *** ** *********** **** STP **** ***** ******. * ***'* ******** ** ** *** a ********** ****** ** *** ********* ****** **. ** **** done ** **** **** ******* * ******* ** *** ****.

******* **** ** ** ********. ** *** ******* *** *** grounded ********, **** *********** ****** ******** *** *** **** ** where ** **. **** ***** ** *** **** ****** *** recommendation *** ****. **** * *****.

** *** ********* ** **** ******. *** **** ***** *** lines ** ******* **** **** ** **** ************, *** **** an ******* ******.

****** ***, *** *** ***** ** **** *** *** ******, the ****** ***** *** ********.

****** * **** ******** ***** *****, **** *********, *** **** shielded ** ********** ***** **** *****, * ****** *** * company ***** * *** ** *** **** ******. ** ***** run **** ******** ***** **** ** *** ****, *****, ** the **** ***' ***. ******* **** ** **, ** ** surprising **** ** ***** ****** *** ******** ***** **** *** horrible *********** ** ******* ***** **** ********* ***** ******** ** us.

*** **** *** *** **** ***** ******* * *** ***** of ********** ************ ** *** ****** **/** *********** **** *****.

**** *** ****** ***** * **** ** **** *** ***** others **** ***** ******** ********. *'* *** **** ** * book ******.

**** ********* *** *** ******** ** **** **** ****** ****** to ******* ***** *********. *** ** **** ********** ************. ******* provides **** **** ***** ** ****** **** ******* ******* ** this *******. **'* ******** ** ************* ******, *** ***** ******** for ******* ****** ****. *** ****** ** ****** ***** **********.

****** **** ******, ***, ** ****** ********* ****** **** **** the ******** **** ********* **** **** **** ******** ***** ****** you ******* * ********* ****** **** **** ** ** **** resistance *** ******* *** ** ****** **** **** ******** ***** - ***** ******* *****

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

Higher Power PoE 802.3bt Ratified, Impact on Security Products Examined on Oct 12, 2018
Power over Ethernet has become one of the most popular features of many video, access, and other security products. See our PoE for IP Video...
Door Hinges Guide on Oct 10, 2018
Some of the trickiest access control problems are caused by bad door hinges. From doors not closing right, to locks not locking, worn or warped...
IP Camera Installability Shootout - Avigilon, Axis, Bosch, Dahua, Hanwha, Hikvision, Uniview, Vivotek on Oct 08, 2018
What are the best and worst cameras from an installation standpoint? Which manufacturers make it harder or easier to install their cameras? We...
Network Cable Testing Guide on Oct 02, 2018
Proper cable installation is key to trouble-free surveillance systems. However, testing is often an afterthought, with problems only discovered...
AHJ / Authority Having Jurisdiction Tutorial on Sep 27, 2018
One of the most powerful yet often underappreciated characters in all of physical security is the Authority Having Jurisdiction (AHJ). Often,...
Access Control Lock Guide on Sep 26, 2018
In this guide, we examine locks; critical elements of any security system and fundamental parts of every access control system. Two fundamental...
Ladders For Installers Guide on Sep 25, 2018
Ladders are one of the most important pieces of worksite equipment for the surveillance technician. Too often, however, even highly experienced...
IP Camera Cable Labeling Guide on Sep 14, 2018
Labeling cables can save a lot of money and headaches. While it is easy to overlook, taking time to label runs during installation significantly...
VMS Export Shootout - Avigilon, Dahua, Exacq, Genetec, Hikvision, Milestone on Sep 13, 2018
When crimes, accidents or problems occur, exporting video from one's video surveillance system is critical to proving incidents. But who does it...
Door Fundamentals For Access Control Guide on Sep 12, 2018
Assuming every door can be secured with either a maglock or an electric strike can be a painful assumption in the field. While those items can be...

Most Recent Industry Reports

Higher Power PoE 802.3bt Ratified, Impact on Security Products Examined on Oct 12, 2018
Power over Ethernet has become one of the most popular features of many video, access, and other security products. See our PoE for IP Video...
"New Zealand Govt Uses Chinese Cameras Banned In US", Considers Security Audit on Oct 12, 2018
Newsroom NZ has issued a report: "NZ Govt uses Chinese cameras banned in US": This comes after the US federal government banned purchases of...
Mysterious Patent Troll 'Secure Cam' Targets Industry, Sues Hanwha, Hikvison, JCI, Panasonic, More on Oct 11, 2018
A company named "Secure Cam," who is actively hiding their ownership, has acquired a slew of video patents and is systematically suing video...
Unfixed Critical Vulnerability In Millions of XiongMai Devices Disclosed on Oct 10, 2018
XiongMai, one of the biggest OEMs alongside Dahua and Hikvision, has suffered a critical vulnerability impacting millions of their devices. This...
Door Hinges Guide on Oct 10, 2018
Some of the trickiest access control problems are caused by bad door hinges. From doors not closing right, to locks not locking, worn or warped...
Default Passwords Outlawed in California, US To Follow on Oct 09, 2018
UPDATES A new California bill aimed at improving security for connected devices has been signed into law. The law takes aim especially at...
Security System Health Monitoring Usage Statistics 2018 on Oct 09, 2018
How well and quickly do integrators know if devices are offline or broken? New IPVM statistics show that typically no health monitoring is...
IP Camera Installability Shootout - Avigilon, Axis, Bosch, Dahua, Hanwha, Hikvision, Uniview, Vivotek on Oct 08, 2018
What are the best and worst cameras from an installation standpoint? Which manufacturers make it harder or easier to install their cameras? We...
IACP 2018 Police Show Final Report on Oct 08, 2018
IPVM went to Orlando to cover the 2018 IACP conference, the country's largest police show (about as big as ASIS), examining the 700+...

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