IP Camera - Direct Attached vs Jack & Patch

Author: Brian Rhodes, Published on Jan 11, 2016

An ongoing debate rages about how the IP camera cables should be terminated.

This argument surrounds two common options:

  • 'Direct Attached', where the first terminates the field cabling with an RJ45 modular plug, and connects it directly to the camera.
  • 'Jack & Patch': where the cables are first terminated to a jack or patch panel, and then connected to security devices by patch cord.

In this note, we explain the options, tradeoffs, and elaborate on the pros and cons of each method.

** ******* ****** ***** ***** *** *** ** ****** ****** should ** **********.

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

  • '****** ********', ***** *** ***** ********** *** ***** ******* **** an **** ******* ****, *** ******** ** ******** ** *** camera.
  • '**** & *****': ***** *** ****** *** ***** ********** ** a **** ** ***** *****, *** **** ********* ** ******** devices ** ***** ****.

** **** ****, ** ******* *** *******, *********, *** ********* on *** **** *** **** ** **** ******.

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

The *** *******

****** ****** ******:*** **** ****** ****** ** ********* ******* ** * ******* is ****** ******** **** ********** *** **** * ******. ****** are *** ******** ** * ****** *** ** * ****** or ********** ** *** *****, ***** ** **** ******* **** at **** **** ** *** *****. ******* ** ******** **** these ***** ****** *** ****** ** *** ****** *****.

*******, **** **** * ****** **** ********* ****** ** ****** despite ***** **** *******:

**** *** ***** ********: ********* ** *** **** ******* *******'* ******* *****, *** ********** ******* ****** ** ********** ** *** closet *** ** * ***** *****, *** ** *** *****, on * ****. ******** ** ***** ********, **** *********** *** relaxed *** ******** ********* *** ***** ************* ***** ************* *** be ********* ** ********* *** ** * ****.

*********** *** **** **** *** ***** ***** ** ******, *** from *** **** ** ****** **** ***** *****. *** ********* section ** ***** **** ***** ***** ** **** ** ****** the '********* ****'. ********* ***** *** ********* ** * ********* for ******** *******, *** ***** **** *** ***** ** *** camera. ** ******** ************, ***** *** ******** ******* ** ******** boxes.

The ***** ** *** ******

*** ***** ***** ******* **** ****** ** *** '******** ********* link' ***** ******* ***** ******. ***** ****** *** ********* ** standards ** ** ********** ** *** ******* **** *******, ******* were ******* ** **** *** ****** ********* ****, ********* ** not-quite-accurate ***** **** ******* ******* * ******* ****. *** ********** these ******* *** ** *********, *** ** ********* *****, **********.

******** ********** ******* **** **** *** ****** ****** ****** *** years, ** ** *** ********** ** *** ********* **** ** some ***** * **** *** ***** ***** *** *********** ** unserviceable. ******* ******** ** *****'*********** ****** *** ******** ****** ************* **** ** *** **** **********.

*******, ** ****** ** ***** **** ******** ************ ***** ***** fundamental ***** ** ***** *********, **** ** **** ****** ***** mounted **" ***** ******** ***** **** *** ****** *** ** it. ******** *******, **** **** *** *******, *** ***********-********, *** different ********* ***** ***** ********** ******** ****** ***** ********.

Which ****** ****** * ***?

*****, *********** ********, ***** ** ******* ***** **** ****** ** these *******, *** **** ** **** ** ** **********, ******** attaching ***** ** ********* ********* ** *** ******** ** ***********. There *** *** **** ********* ***** *** ** * ******* when ***** **** ******:

  • ***** ***********: ** *** ***** **** *** ********** ****, **** ** the ***** ********** (**** *****) ** **** **** * ***** copper *********. ** ***** ******, **** ********* ** **** ** of ******** **** ****** *******. **** ***** *** *********, *** in ****, *** ****** *****, **** ********. *** **** ******, patch ****** *** ** **** ** *** **** ***** ***** where ***** ***** *** ******* ********* ** ******** *** ***** where ***** ********* ***** ***** **** ******. ******** ********, *******, according ** *********, **** ****** ** **** ***** *** ******** of *** *****, ********** ** ***** ** ******** ************.
  • ******* **** ************: ***** *** ** ***** ** ****** ****** ** ***, some ************* ** *** * *** ****** ****** **** ***** conductors ** ** ** ***. **** ****** ** ***** **** selecting *****/******* **** ************, ** **** **** *** **** **** handle ******-***** ****, ** ** *** *** **** ********, ** simply *** ** ***.

***** ****** ** ***** ** ********** ** ******** ************, ** well:

  • ******** *******:**** ********** ******** *******, *** *** ************* ** ***** *** camera **** ** *******. ** *** ******* *** ** ** wall-mounted, ** ** *** **** ** ********* ** ***** ****-******* environments, ********** ***** ** ******, ****** ** * *******-***** ** recessed *** **** *********. **** ***** *******-******* *****, *******, ************ is ********. ** ********* ** *** ************ ****** ******, ******* connections *** *** ******* ** **** ***** **** ********. **** means ****, ****** *** **** *** **** ****** ** ******* a **** ****** ** (***** ** ********), * ******** *** must ** ******** ** ***** *** ***********, ****** *** ****** attach ****** **** *******.
  • ******** *******: ***** ***** ** ******** ********* *** ** **** ******** than ***** ******** ************. ** ***** *** *******, * **** may ** ******* ** *** *******. *******, ******** ***** *** as ******** ** ***** ******** ************ ** **** ****** ***** to ****** * **** *** ***** *****. ** ** ********* is ********, *** ***** **********, ******** *********, ** ***** *****, the **** *** ** ******* *****. ** **** *****, *******, the ****** ****** ****** **** ** *******.

** ****** ***** ****** ** ****, **** **** ** ***** during ************. ******* ***** ******* ******* *** *** ********* **** radii ****** ** ********. *** ********** ****** ** *** ** or *** * *****, ********* *** **** *** ***** ******. If *** ** ***** *** ********, *********** ****** ********** *** issues.

Comments (15)

******!

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

********* ** *** **** ******* ** *****'* **** *** *****, all ********** ******* ****** ** ********** ** *** ****** *** on * ***** *****, *** ** *** *****, ** * jack. ******** ** ***** ********, **** *********** *** ******* *** security ********* *** ***** ************* ***** ************* *** ** ********* or ********* *** ** * ****.

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

**** **** *** ****** *** ** ****, ****** **** ** condsidered * ***** ******, * ****** ** #* *** #*?

***** **** **** *** ******* *** ** ***** ******, ** that ** *** ********.

*** *** ******* **** ***** ********** *** ******** ** '*******', and '****-*********' *****, *** ***** ************ *** ********.

** * ********** *** "****** ****** ******", ** ****** *** BiSCI ** ***/*** *****, ** *****'* ****

Cables *** *** ******** ** * ****** and to a camera or controller in the field, using an RJ45 modular plug at both ends of the cable.

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

Direct ****** ******:

** **** ******,cables *** *** **** * ***** ***** ** ******, but instead of terminating the cable to a jack in the field, and patching to the camera, an RJ45 modular plug terminated to the end of the cable is connected directly to the camera.

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

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

*** *** ******* *** ***** ******** ** *** **** **** allowsdevices ** ** ********* ******** ** * ******?

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

*'** ****** ********. ** ***** ***** ****** **** ****** *****/****** networks?

*** *** ******* *** ***** ******** ** *** **** **** allowsdevices ** ** ********* ******** ** * ******?

*** *********** ** ******* '********* ****' *** '*******' ********. *** typically ****** ******** * ****** ** ***** **** ***** ***** as '*********' ** '**** *********' ****** ***, *** ******** ** ***** *********** **** ********** ** *** be ******** ** '*******'.

**** ****, '********* *****'****** ******* * ***** *****. *** *******, *** *** **** cable ******** **** * *** *******, *** ** **** ***** directly **** * ****** *** **** ** ** ******** ** a '*********' **********.

*****/****** ***** ********** *** ** ******** ** '*********' ** ****, ie:

***** *************** *** ********. *** ** *** **** ****'* ********* to ******, *** *** * ******* *** **** ** **** system ********, ***** ** ** ****** ** ******** ***** *** over *** *****.

*****, *** ***** ** **** **** *** ***** ***** *********** was "*******", ** *** **** ******* ** *************, *** ** *** **** *** ****.

* ****** *** * ***** ***** ** *** **** ***. I ****** * **** *** ***** ***** ** *** ****** end. * **** ***** *** ** ***** **** ****. ***** are ***** **** *** *** **** *** * ******* *** plugged ******** **** *** ******. ***** *********** *** *** **** ones * **** **** *** ** *******, ******** *** **** many *** ********* ** *** ******* *** ***. *** *** that ****** ******* ** ****, *** ** * ***** **' up.

* **** ** **** **** ****** ** *** "**** *** patch" **** ** **** ********, *** *** *** ****** **** I've **** ****** ********** ***** **** ***'* ********* **** **'* hard ** ***** ** **.

* *****'* *****/**** * ******* ******** *** *** ***** * patch ***** ** ****-***-***** ***** *********** ** *** ******* *** general ***** (**: ********* ** **** **** ** **** ** closet.) ***** *** **** *****, ****, ** ***** ***** *** have ********* ** * ******** **** * ***** **********, ***** there ** ** "****" *** ********** ** **** ** **** sort ** **** *********. ** ***** ***** * ******-*********** ******** is ******** *** * ****** ***, ****** *** ******** ******** have * ****** ******* **** ** *** *********, **** ** case... *** ********* ***** *** **** **** **** ******* ****** of ****** (*-**), *'** ********** **** ****** *** ****** **** keystone ******, ***** ******* ** * ***** ***** *** ******** cable ** ********* ** ** ****** **** ***** ** * keystone **** ** * * ** * **** ****** ***.

**** ** *** ***** ********* **** ** ** ****** ** cases ** ******* ******* ** ********* (******, ********, ****** ******, PCs) ********* ** * ******* ********** ***********. **** *** ** moderate ****** *** *****-**** ***** ** *** ****** ******. ***** that ***** **** ***** *****'* **** ** *** ****** * lot, * *********** ** * ***-****** ****** ****** *** ******* M/A/C **************** *** ******** ***** ***** *** ***** "******** *****".

*** ******** *******, ****'** *** ******** ***** ***** ** ********. An ******/**** ***** **** ***** * ***** ** ******* ** probably *** ****** **** *****, *** ******** ** ***** * premature ******* ** *** ***** ** ********** ** **** ** basic **** ** *********.

***** ** *** ** *** *****, * ***** **** ** see **** ******* *********** **** **** ** ******* ********* ** the *******, ** * ******* ** ***** ****. * ***** this ***** ******* *** ********** **** ***** ****** *** (*** possibly ***** ** * **** ** *******) **** ********* ***** devices. ** *** ****** *** ** **-** **** ******** ** the **** ** ** *** *******, * ***** **** ****** solves *** **** ******* ** ******** **** *** ******* **** to *** ****** *****'* ****** ******** ** * *******/**** ******.

*****, * *****. ** * ********** ********, * ** *********** for ********* ********, ***, **, ** *** *** ***** ****** that ***** ** *** ************ ** **************. ** ********* ******** is ** **** ******** ** (*******) ******* *** *********** ********** runs ** * ***** **** **** * ***** ***** ** the ******* ****. * **** ******* **** *** ********* *** channel ******* (********** ** *** ******** **) **** ** ****** and **** **** *** *********** *** ******* *********** *** ** certified. **** **** *** ******* ****** ** *** ******** ** contractor **** ******** ** *** ** *********** ** *** **** to ***** *****. *** **** **** ****** ** ******** ** division ** *** ** *** **** ***** ******* *** ************** of *** ********** *******. *** ******* ** *** ********* **** 23 *** *** ** *** **** *** **** **** ****** must ** *** ****. **** ***** ******** ** *** ** must ****** *** ******** ** ************** ** *** ****, *** I *** ***** ** ***** ********* ** ** ****. ******* to ** **** **** ****** ***** ******* **** ******** *** to **** ********* ****** ********** ** ****** ********** *** *******.

**** ******** ** ***** ***** ** **** ****** ****. ***** cables ** *** ******* ***** (*** ******* ******** ****) *** be ********* ** ******** **, ******** ** ** ** *** cases *** *****'* ******* *********** ****. **** ******** **** ****** for ******* ** ** ********* ***** ********** **** ** ************* points ** *******. *** ********* (** *********** ** *****) ***** for **** * *********** ** * ******* (**** **** *** include *** **** **** *** ****** ** *** **** **** the ***). ****** **** **** ***** * **** *******. ***** channel ******* ********* **** **** ***** * *******. ***** *** lots ** ******'* ** ********** ******* ****** **** ***-******** ** contractors **** *** ********* ** **** **** ***** ** ********* to *** ** *******.

***** ***** ** *** "**** *** *****" ***** **** * variance *** ******* **** **** ******** ****** **** *****, ***** you **** **** ** **-********** ***** ******* * ***** ***** grommet? *** *********** **** ** *** ******* ** ********* ******** patch ******.

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

***** ** ** ***** ********* **** ***** ****** **** ******* are "*******". *** ************* ******** ******* **** ********* ****** ** that *** ******* **'* *******? ******* ****'** ****/***** ** ******-************ being ********* *** ** **** *** ******** ** ****** ******, even ****** ***** ****** *** ** "*****"?

** *** ** *** *****, *** * *****'* **** * BICSI-style ******** **** ********* *** * ****** ****** ** ***** to ***** *** ****** ********** ** * ******* *****. ** this ****** ****-****** ******** ** * ********* **** ******* ** structured *******?

*'* *** ****** ***** ******* *** ********** *** ** *****, and ** **** **** *** ** ********* *** * ****** of *******. *** *** ********* ** ***** ***** ** ******* does ***, ***, ******** *** ********** ********.

*** ** ** ** ******** **************** **** *** *****, *** it's ******** **, ******* ****** * **** **** ******** * thought ** *****:

** ** *******. **** *'* ****** ** ** ***** *** adhere ** *** "**** *** *****" ********** ***** **** ********** to *** ******** ***** **** ** ** ***** **-*********** ** the *****. *** ***** ******** ******* ***** **** * ****.

** *** ** *** ******* ***** ** *** ****** *** and ***** ****** ** *** **** *** ** ********, *** will *** **** ********** **** **** * ********** **** ********* more *********.

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

********* ** **** ****** ************ *** *** *****, *** ***** situation ** * ***-*****. *** *** **** * ********** **** through *** ****** ***** * ************* *** ******* ** *****.

**** ***** ** **** ******** ** ***** ***** ****** *** camera **** ****** **** * ****, ** ************ ******* ***** core ***********.

****** **** ** ******* *** **** ** ********* **. ** course *** *** ************ ****** **** **** **** ***** *** adds ****.

*** ******** ******* ****/**** ****** **** ** **** ****** *** me. ***** ***'* * ****** *'* ***** ** **** ********* terminating ***** **** **** * ******* ****. ** *** ****** body ** **********, * ******* ********* ****** **** **** *****.

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