STP vs UTP for Surveillance

Author: Brian Rhodes, Published on Aug 06, 2012

For many, deciding which ethernet cabling to use is a quick decision: install whatever is cheapest. However this may grossly simplify an important decision: Does the cable, and the video it carries, need extra protection against 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 unshielded alternatives.

Electrical Interference: Video Killer

** *** ***** ************ *****, *** ******** ** ***** ** cameras *** ****, **** ****** ********* ** *** ******* ** between. **** ***** ******* ******** *****, ** *** ** * frustrating ******** ** **** ****** *** ***** ********, **** ** discover ******** *** ***** *******. *******, ****** * **** **** at ******* *** ******* ********* ******. **** *** ******* ** the ***** *****:

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

*** ***** ****: "***'** **** ** ****** ** **** ******* link." **** ********* ******* ** ***** ********, ***** *** *********** of *****-***** ******* *** ***** ********* *** ** ****** ** shoddy ******* ******. ** *** ********* *******, ** **** * look ** ******** ******* ****, ** '***' ****** ********** ******* Pair, ** ***, *** ******** ***** ***********.

********

* ***** ******** ********** ******* *** *** ***, ** '********** twisted ****' ******* ******* *** ******* ***********. *** ***** ****** the ********** ******** ********* *********** **** ***** ** ***:

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

*** ****** ************ *** ******** ******* **** *****, '***', ** sometimes ***** ** '*/***' ** '**********/****-******** ******* ****'. ** ******* standards ******* *** *** ******* **** ****, ******* ******** ******* to ****-*** **** ****** ************ **** ****** ******* ** *** nomenclature. *******, *** **** ************ ***** ************ '***' ** **** widely ****.

Physical ***********:*** ********* **** ********** *** ******** *********** ******* *** *** STP.

  • ******** **** ******:* **** ***** ** ****, ******** ********, ********* **** *****. This ***** ** ***** ****** *** '*****', *** **** ** properly **********. ******* ** ********** ****** *** ***** *** ******* the ******** **** *** ******** ** ********.
  • ******* ******:*** ***** ****** ** **** ******** *** ****** *** ******** to *** ***** ******. ** * ******, * ******* ******* insulating ****** ** ******, ***** **** ********. *******, *** ** heavier *** ******* ******** ** ***, *** *** ** **** difficult ** ******* ** * ******.
  • *****, **** ******, *** ***********:********* ** *** ***** ************ *** ***** ** ***, ***** features *** ** ******* *** ******** ***** ** *** *******. This ******** ******* ******* '****' ******, ******* ** *** ********* the ******, *** ********** ********** ********* *****. ***** ** ** ******* rated ***** **** * ****** **** **** ********* *** ***** into ********* ****** *** ******.

Image result for network cable core

Functional ***********: Those additional physical features provide STP with properties that UTP does not possess.

  • *** **********:*** ******* ********* ** ********* ** ********** **** **************************** ************, ** ***. ******* **** **** ** ************ *******, *** ability *** ******* ************ ** ******** *** ***** **** *** cable ** ************* ********* ** **********.
  • ******** **** *****: ************ *** ** * '***-*** ******' ** **** ********** cabling ** * ****** ****** ** ************. ** **** ************, like ********* ******* ******* ** *************, ****** ******** ******* *** be * ************ ******* *** ************. *****, *** ******** ** pair ********* ********* ** ********** **** *******.
  • ****** ************ *****: **** ******* ******* **** *** ********* ** ***** ********* the ********* ************ ** ******** *******. *******, ***** ****** ****** be *** **** **** *******. *** ***** *********** ** ************ rate *** ****** **** ***** ** *** ******* '********' ** cable ***** ****** *********** ****** **** *** ********* ** ***. In *** ****, *** ********** ******** ** ************ ****** **** also ** ********* ** *** *********** **********. ************ ****** *** only ** **** ** ***** ** *** * ************ *** rated, ***** ********* *** ****** ** **** *****.

Cost **********

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

Where ****** *** ** ****?

*** ****** ******: ******** ************ ***** ** * *******. ***** that ***** ** ****** ******, **** *** **** ****** ******* of ************ **** ****** ******* *****:

  • ******** ** **** ******* ******:***** ****** *** ********* **** **** ************ **** **** *** parallel ** **** *****. **** ****** *** * ********* ******** apart ****** * ******** ******* *** ** * ****** ** video ************. ***** ** **** ************* ****** *** **** ** use *** ** **** ********* *** *****, **** ********* ** data ********** ****** ****** **** *** **** ******* ******* *** same *******, ********** ** *** ** ** ********* ***** ** *******, **** ** *** ***** *** *****.
  • **** ********* *******:**** ******* *** **** ****** ***************** ******** **** ******** ******, power ************, ******** *****, ** ********* *** ********* *********** ***. These ******* *** ************* ** ***** '*********' **********, ** ***** ******** ** ******** ****** *** *********. Devices **** **** *********, *********** ****, **** ********, ********** **********, and ********** ********* *** ******** ****** ************ ** ******* ***** quality.
  • *** *******/****** *******:****** *** ******* ************* ****** ******* **** ************. ***** * token ******* *** *** ** *********** ****** ** ** * problem, ******** **** **** **** **** ******* ********* ** ************ should ** *** ***** *** ** ********* ********.
  • *********** ***** ********:*** ** *** ******* ******* ** *** *** ***** ****** light ********. ***** *** ****** ********** ** ******** ****** ******* directly ******** ** ***** ******** ** ******** **** ********, ** cabling ****** ** *** ** ****** ***** *****, ** ****** be *** ***** *** *****.

Practical ***

** *** **********, *** **** ******** ** *** ************ ******** cabling *** **** *** ***** ***, *** ** **** ** significant ****** ** ******. ***** ********** ******** **** *********** ****** is ************ ************ ** ********** *** ********** ****** "**** *********", ** ** **** *********** ** ******* ** ***** ******* design?

STP *********?

******** ***** **** ************** ******** ******** *** ** *** ********* 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 ******* **** *** ** ** ****** ******** ******** ** common ******** *****.

******, *** ********** ********* **** *** *********** *********** ** ***.  The ******** *** ** *** ** ***** ******** ** *** in *** '**** ****' ***** ********** *****, ** ***** *****-********* switches *** ******** ******* ** *** ********.

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

***** **** ** **** * * ********* ****

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

Deep Learning Tutorial For Video Surveillance on Oct 17, 2017
Deep learning is a growing buzzword within physical security and video surveillance. But what is 'deep learning'? In this tutorial, we explain...
Multipoint Lock Access Control Tutorial on Oct 17, 2017
Doors are notoriously weak at stopping entry, and money can be misspent on wrong locks that leave doors quite vulnerable. While closed and locked...
Exporting Video Surveillance Tutorial on Oct 05, 2017
Exporting video surveillance is important when incidents or crimes occur. However, there are multiple ways to export video which have their pros...
Delayed Egress Access Control Tutorial on Oct 04, 2017
Is it ever legal to lock people into a building? The answer is: Yes... under specific situations. With so much of access control driven by life...
Propped Doors Access Control Tutorial on Sep 28, 2017
Doors should keep 'bad guys' out. One of the most basic problems with doors is people propping them open: Even worse, door propping...
Automatic Door Operators For Access Tutorial on Sep 20, 2017
Opening and closing doors might sound simple, but it takes a high-tech piece of door hardware to pull it off. Integrating automatic door operators...
September IP Networking Course on Sep 14, 2017
LAST Chance - Registration is ending. Register now. This is the only networking course designed specifically for video surveillance professionals...
Master Keying Tutorial on Sep 14, 2017
Mechanical keys are the most fundamental, albeit unsophisticated, form of access control. Like access control, Master Keying allows large scale use...
Fail Safe vs. Fail Secure Tutorial on Sep 13, 2017
Few terms carry greater importance in access control than 'fail safe' and 'fail secure'. Access control professionals must know how these concepts...
IP Camera Cabling Testing Statistics on Aug 22, 2017
Test and certify, or crimp and pray? Some integrators certify every cable they run, while others only inspect cables that have video issues. 130...

Most Recent Industry Reports

Uniview Recorder Backdoor Examined on Oct 20, 2017
A Chinese research group has identified a vulnerability in Uniview recorders that allows backdoor access in a method similar to the Dahua...
Hikvision Access Control Tested on Oct 19, 2017
Hikvision aggressive pricing and marketing combined with generally reliable hardware and free software has made them a major player in video...
Verkada, Silicon Valley VSaaS Startup, Targets Enterprise on Oct 19, 2017
Verkada says they are building an enterprise-class VSaaS offering, calling it "The new platform for video security". This is a departure from the...
Exacq Unbreaks Avigilon Integration on Oct 18, 2017
For nearly 4 years, Exacq had broken and effectively blocked use with Avigilon cameras, as IPVM reported in January 2014. Now, Exacq has...
Search More Important Than Live Monitoring - Statistics on Oct 18, 2017
Search is overall more important than live monitoring to integrators, according to new IPVM statistics.  The key themes found in integrator...
Axis 'Sold Out' P3707-PVE Multi-Imager Tested on Oct 18, 2017
Axis faced significant product shortages over the summer. Perhaps the most notorious and significantly sold out model was the Axis P3707-PE 8MP...
Dahua Removes Auto Rebooting on Oct 17, 2017
For years, Dahua has automatically programmed its IP cameras to reboot weekly, a highly atypical and questionable practice. Following IPVM...
Deep Learning Tutorial For Video Surveillance on Oct 17, 2017
Deep learning is a growing buzzword within physical security and video surveillance. But what is 'deep learning'? In this tutorial, we explain...
Multipoint Lock Access Control Tutorial on Oct 17, 2017
Doors are notoriously weak at stopping entry, and money can be misspent on wrong locks that leave doors quite vulnerable. While closed and locked...

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