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

PoE Powered Access Control Tutorial on Jan 19, 2018
Powering access control with Power over Ethernet is becoming increasingly common.  However, access requires more power than cameras, and the...
The 2018 Surveillance Industry Guide on Jan 16, 2018
The 300 page, 2018 Video Surveillance Industry Guide, covering the key events and the future of the video surveillance market, is now available,...
Multicasting Surveillance Tutorial on Jan 04, 2018
Network bandwidth can be a concern for some surveillance systems. While improvements in video codecs, such as smart codecs for H.264 and H.265,...
Access Control Course Winter 2018 on Jan 04, 2018
Learn more below about the Winter 2018 IPVM Access Control Course. Register here. IPVM offers the most comprehensive access control course in the...
Cabling Best Practices Guide on Jan 03, 2018
Surveillance cabling can be a major problem. Poorly installed and maintained networks are often costly, lengthy, frustrating ordeals to...
2018 IP Networking Book Released on Jan 03, 2018
The new IP Networking Book 2018 is a 228-page in-depth guide that teaches you how IT and telecom technologies impact modern security...
Multi-Imager Camera Guide on Jan 02, 2018
Multi-imager usage continues to grow, with most manufacturers now offering at least one model, making them an attractive option for covering wide...
QoS for Video Surveillance on Dec 29, 2017
Along with VLANs, QoS is one of the most misunderstood topics in IP surveillance networks. Many purported "experts" claim it is required in any...
Resolution Tutorial on Dec 28, 2017
Understanding video surveillance resolution can be surprisingly difficult and complex. While the word 'resolution' seems self-explanatory, its use...
Repositionable Multi-Imager Camera Guide on Dec 22, 2017
Multi-imager usage has been growing strongly over the past few years. Now, a new segment of multi-imagers has taken off, with many manufacturers...

Most Recent Industry Reports

Why 3VR Failed on Feb 16, 2018
3VR destroyed transformed ~$65 million in VC funding into a $6.9 million exit. The reason they failed is simple. They bet on analytics. They...
"Fear Mongering": Hikvision USA Cybersecurity Director Dismisses Chinese Government Ownership Concerns on Feb 16, 2018
The facts are: The Chinese government created Hikvision and is Hikvision's controlling shareholder. Hikvision's Chairman, a Communist Party...
16:9 vs 4:3 Video Aspect Ratio Statistics on Feb 16, 2018
What aspect ratio do security integrators prefer? The 'standard' 4:3 or the 'wide' 16:9 one? 100+ integrators told us what they preferred, with...
Mercury Releases New Series 3 Redboard Access Panels on Feb 15, 2018
Mercury Security has their first major product release post-HID buyout, and things literally look different. The Series 3 SIO boards now are red...
Last Chance February 2018 Camera Course on Feb 15, 2018
This is the last chance to get into the Winter camera course, starts next Tuesday. Register now. IPVM provides the best education, live online...
Hikvision DeepInMind Tested Terribly on Feb 15, 2018
While Hikvision is heavily marketing deep learning and 'AI' as their next big thing, new IPVM test results of their DeepInMind NVR shows their deep...
Genetec CEO: You Cannot Buy Trust on Feb 14, 2018
Genetec's CEO, Pierre Racz, delivered a direct message at their channel partner conference: Racz has become a focal point in the industry debate...
Assa's Lowest Power Draw Maglock: Securitron M680E Examined on Feb 14, 2018
Securitron produces some of the most extreme maglocks on the market, including massively strong maglocks and even ones with integrated CCTV cams...
Hanwha Wisenet X 5MP Camera Tested (XNV-8080R) on Feb 13, 2018
Wisenet X is Hanwha's high-end camera line. We tested their Wisenet X 1080p camera last year. Now Hanwha is offering 5MP cameras listing super low...
Top Problems For Integrator Project Management on Feb 13, 2018
Security projects routinely encounter issues that jeopardize deadlines, create confusion, and shrink profits. Unfortunately, there are common...

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