Rack Mounting NVRs Tutorial

By: Ethan Ace, Published on Mar 14, 2018

Rack mounting recorders is common in professional systems, but manufacturers are making it difficult, with simple design failures causing multiple issues.

Rack Basics 

Most commonly, the term "rack" is used to refer to equipment with vertical mounting rails 19" apart and a standardized mounting hole pattern. This may be one of a variety of styles (open frame, closed, etc., discussed below), all of which are simply called racks in common usage.

Rack height and depth varies depending on how much and which equipment is to be mounted in it, with some deep enough only for patch panels and switches (~12-18") or others sized to accept even the largest servers (~30"+). 

Rack Units (RU)

Rack rails include a standardized hole pattern which is broken down into "rack units", a 1.75" division consisting of three mounting holes. These units are often marked on rack rails to make front/back mounting easier.

Rack unit is most often abbreviated to RU or simply U, which can be found on some equipment's spec sheets under dimensions, such as this NVR:

Open Frame Vs. Cabinet

Racks may be either open frame (2 or 4 post) or enclosed. Open frame racks are typically used in rooms which are secured and climate controlled, while cabinets are used in open office areas where the enclosure itself is secured and ventilated.

Both styles may be floor mount or wall mount, depending on space requirements, number of rack spaces needed, wall construction, etc. 

In this report, we look at rack mounting recorders, covering these topics:

  • Why rack mount?
  • Why not mount on desk, table or floor?
  • Recorders without mounts included
  • Recorders blocking adjacent spaces
  • Front only mounts cause device sag
  • Rack rails do not fit
  • Other rack components to consider

 

Why **** *****?

**** ******** ********* ** done *** ******* *******:

  • ************ ***********:******** ********* ** * central **** ****** ***** and ******* *********** ** be ************, ******* ** spread ** ********* *********, desktops, *******, ***.
  • ******** ********:**** ******** ********* ******** security ** *********, ** it *** ** ****** in * ******* *******, a **** ** * locked ****, ** ****** clearly ********** ** ********* only ********** ********* ****** access.
  • **********:******* **** *********** *********** and ***** *** ****** to ** ******* ******, racks ********* ******* ********** compared ** ******* ********* on ******* ** ********.

Why *** ***** ** ****, *****, ** *****?

*******, **** *********, ********** smaller ******, **** **** rubber ****, ******** **** manufacturers ****** **** ***** will ****** ***** ****/**** on ***** ** ******* or **** *** *****.

*******, ***** ************* *** simply *** ***********, ** cable ********** *** ******** are **** **** ********* to ****** **** ******* are ****** ****** ** these *****. **** ** shelf ****** *** ** improved ** ****** ******, ***** wire ********, ************* ***** supplies, ***., *** ***** additions ** ******** *** installation ***** ********* ****** reductions ** **** ****.

Rack ******** *********** **** ** ***** ************

** **** ***** ************, where * ******** ** the **** ********* ** be ********* *** *** connections **** ** ** made, ***** *** *** be *********, *** **** customers ****** ** ****** racks ** **** ** commercial *************. **** ** shelf ******** ********** ** often ********** **************.

Problem *: ** ****** ********

**** *** **** *** even *** ***** **** do *** ******* **** mounts. ** **** *****, they *** ** ******* as ** *** **, but ** **** ***** are ********** ***********. ***** should ******* **** ****** are ********* *** *** many ****** *** **** requires ****** ********.

*** ******** ********* **** a ******** ** *** rack ***** ** *** lack ** ******** ***** on *** ***** ** the ********, ***** ****:

** ***** **** ** be * ******* ** a ****** ** ********* manufacturers. **** ******* ********* and ****** ****** **** with **** ******. ***** recorders ******* ** *** on *****, ******* **********.

Problem *: ********* ******** ***** ******** ******

******, **** ********* ***** include **** ****** ******* more ***** **** ********* due ** **** ** the ****** ** *** case ** ****** ***** which ****** **** *** space *****, ******* *** NVR's **** ***** **** taking **** * ****** space.

*** *******, *** ******** below (******) ** *** tall ** *** **** a ****** ***** *** to ******** **** ** the ****** ** *** unit. 

**** ******* ** ****** space **** ******** ********* are ** ** ******* in * ****** ****, effectively ******* *** ***** available. ************, ** ****** cabinets, **** ***** ***** may ****** *********** ********, as ********** **** ******* blank ** **** ****** above ***/** ***** **** recorder ** ******** *******.

** ***** **** ********** to ** ** ***** on ****** ***** "**" recorder ** *******, ******* Hikvision, ******, *****, ** others. 

Problem *: ***** ****** ***

*** **** ******** ** embedded ********* *** ***** rack ****** **** ***** may ****** ** *** rear ** ***** *******. This ******** ********** *** may ********* **** ********* mounted ***** *** ********, making *********** **** ********* to ****** ** ******* pressure ** *** **** of ***** ********* *****.

**** ***** ** ****** in **** *********, ********* compact *** ********** *********** single **** ***** **** shown *****:

*** **** ** **** of ****** *+ **** space *********. ****** ***** rack ****** *** ****** and **** **********, *** increased ****** ** ***** larger ***** ***** ****** sag, ***** ****:

***** *** *** ******** solutions ** ****:

  • **** ******* *** ******* units:*** ******* *********, ************ rack ******* ****** ******* ****** support *** ********* **** sag.
  • *****/**** ***** *** ****** units:*** ****** ******** ********* and **** *******, ******* offer ***** ***** **** front ** **** ** the ****/*******, ******** ********* to ** ****** ** top *** *********. **** is ***** ***** **** the **** ** ******** shown *****.

** **** ****** ******, we ******* ***** ****** in *********** ***** ************ and ***** ** ******** we ******, **** ****** connections **** **** ** the **** ** *** unit, ****** ********** ******.

Problem *: **** ***** **** *** ***

** **** *****, **** rails ******** **** ******* may *** *** * user's **** *** * number ** *******. 

  • ***** ******** *****: **** ***** *** ******** holes *** ******** *********, while ****** *** ****** holes ***** ****** * captive *** (****** **** nuts). ******** ***** *** typically ******** *** *** or *** *****, *** not **** ** ***** styles.

  • **** *** *******: ******, **** ***** *** be *** ******* ** mount ****** *****, ***** are ********* *" ** more ****** **** *** server ******.
  • **** ***** ** *** Way: *******, *** ************ ** some ***** *** *** allow *** **** ** pass. **** ** ******** in ***** **** "*" shaped ***** ** ******* to "*" ***** (*** our ********** **** ******** **** *** ********).

***** **** ** ****** due ** ****** ************* intending ********* ** ** mounted ** ******** ***** (generally **** **** *** with ****** **** *****), with ** ****** *** attaching ** ******** ***** or ********** ** ********* racks.

*************, *** ******* ******** to *** ***** ****** is ** *** ***** to **** **** ***** as ********* ***** **** embedded *********, ** ***** are *** ***** *******. In **** ***** ***** racks *** ****** *** short, ********/********* *** ** used (*****), *** ***** components *** ****, ****** aesthetics, *** *** * point ** ******* ***** may ****** ***/** **** over ****.

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

**** **** ***** **** recorders ** ** **** mounted, ***** ****** ********* consider **** ***** ********* might ** ******** ** the **** ****** ** the **** ** ************ or ** *** ******. Components **** **********, *******,*******,*** *******, ***** ******, ***** managers, *** ****** ****** all ** ********* ***, in ***** ** ******** size **** ****** *** depth, ***********, *** *****/******* backup ************.

*** ***** ** ***** results ** ***-** ********* being ******* *********, ********* additional *****, *******, *** other **************, ** ******** equipment ** ** ******* and *********** ** * larger ****, ****** ****.

Comments (8)

One other thing i find extremely irritating when i have encountered it, is the quality of the rail kits. I have a few sites running senneca servers and found when having to pull the nvr out to de-rack it for service the release tabs for the rails fails to release and in some cases comes apart. I know its a minor thing but it makes you really appreciate good quality hardware when poor quality hardware sucks up time on a menial task.

I agree with you, and I work at Seneca (Arrow Intelligent Systems really).

A few years ago, one of our chassis ODMs was sending  really chintzy rails with their unit.  They were failing just like you described...pull the unit out and the bearings would fall out or the rail came out of the slot.   I brought them in and showed them this and they redesigned the rails.

It would be helpful to know if this was an 'older' chassis or even a different ODM than the one I already chastised.

Post here if you wish to remain UD.   Even better would be to call in to our service department and voice the complaint. 1-800-227-3432  (Option 5)

I dont mean to disparage your company name. I just found it peculiar for such a low quality kit to accompany a higher quality NVR. Im not sure what the server model was. Id have to dig a little to find out. The last one i personally encountered we had purchsed it maybe 7 months ago. It was 64 tb so the rail kit failing to operate correctly was extremely disappointing. That said, i like everything else about senneca.

We definitely don't want that to be the situation..ie the LQ rails on HQ NVR. 

In the time frame you mention we have two chassis partners.

Help us to help you and others by letting us know the particulars you encountered.   That way we can prevent future issues.

All the ways to reach out to us in an official fashion are here:

Seneca Support page

 

I totally agree with this. The first Bosch BVMS system with a management server and a NETAPP that in installed I was stunned. The management server which is HP had the usual high quality rail kits but the $20,000 NETAPP had really cheap rail kits that were a pain to install into the rack and the slide mechanism was just metal on metal and a simple thumb screw and nut. Would have expected more from this part of the product. Actually I ended up not using the slides and just secured it to the rack wit the screws and it rested on the other equipment. Other than that all was well though. One would think with how much you typically spend on NVR's they would come with rail kits at no charge and be of good quality.

We actually have a Hik Vision encoders with the typical rack mount sag.. This encoder is single handedly the worst piece of rack mount equipment I have ever worked with.. Between bent rack ears and screws not lining up it was not a fun time mounting this hardware..

The new Hik (I know) 1U NVR is heavy, especially toward the back.  But the puny rack ears have holes that are too big, and it's impossible to tighten the screws enough to keep the unit from sagging.  At least on a 2U there's more leverage.

The new Dahua NVRs don't include the rack-mount holes either. An optional PFH101 snap-in rack-mount adapter tray makes it rack-mountable, but the 1U the becomes larger than 1U, which defeats the purpose of organizing multiple NVRs into a rack neatly.

Read this IPVM report for free.

This article is part of IPVM's 6,536 reports, 881 tests and is only available to members. To get a one-time preview of our work, enter your work email to access the full article.

Already a member? Login here | Join now

Related Reports

Exit Devices For Access Control Tutorial on Aug 25, 2020
Exit Devices, also called 'Panic Bars' or 'Crash Bars' are required by safety...
Drain Wire For Access Control Reader Tutorial on Sep 23, 2020
An easy-to-miss cabling specification plays a key role in access control, yet...
AHJ / Authority Having Jurisdiction Tutorial on Aug 06, 2020
One of the most powerful yet often underappreciated characters in all...
Door Fundamentals For Access Control Guide on Aug 24, 2020
Doors vary greatly in how difficult and costly it is to add electronic access...
Keypads For Access Control Tutorial on Jul 28, 2020
Keypad readers present huge risks to even the best access systems. If...
Free Online NFPA, IBC, and ADA Codes and Standards 2020 on Sep 03, 2020
Finding applicable codes for security work can be a costly task, with printed...
Mobile Access Control Usage Statistics 2020 on Sep 21, 2020
Most smartphones can be used as access control credentials, but how...
Remote Network Access for Video Surveillance Guide on Jul 27, 2020
Remotely accessing surveillance systems is key in 2020, with more and more...
Favorite Access Control Credentials 2020 on Sep 15, 2020
Credential choice is more debated than ever, with hacking risk for 125kHz and...
Forced Door Alarms For Access Control Tutorial on Aug 17, 2020
One of the most important access control alarms is also often ignored....
The Next Hot Fever Detection Trend - $100 Wall-Mounted Units on Jul 06, 2020
The first wave of the booming fever detecting market was $10,000+ cameras,...
Beware Rigged China Fever Cameras on Sep 08, 2020
Many China fever camera manufacturers have rigged algorithms dynamically...
Directory of 206 "Fever" Camera Suppliers on Aug 04, 2020
This directory provides a list of "Fever" scanning thermal camera providers...
HID Presents Mercury Security & Aero Access Controllers on Aug 25, 2020
HID presented Mercury Security & Aero Access Controllers at the 2020 IPVM...
Face Masks Increase Face Recognition Errors Says NIST on Aug 04, 2020
COVID-19 has led to widespread facemask use, which as IPVM testing has shown...

Recent Reports

Hanwha AI Object Detection Tested on Sep 28, 2020
Hanwha has added detection and classification of people, cars, clothing...
Favorite Access Control Manufacturers 2020 on Sep 28, 2020
200+ Integrators told IPVM "What is your favorite access control management...
New Products Show Fall 2020 Starts Tomorrow! on Sep 27, 2020
Tomorrow, IPVM's sixth online show will feature New Products from over 25...
OnTech Smart Services Partners With Google and Amazon To Compete With Integrators on Sep 25, 2020
A pain point for many homeowners to use consumer security and surveillance is...
The Future of Metalens For Video Surveillance Cameras - MIT / UMass / Immervision on Sep 25, 2020
Panoramic cameras using 'fisheye' lens have become commonplace in video...
Hikvision Sues Over Brazilian Airport Loss on Sep 24, 2020
Hikvision was excluded from a Brazilian airport project because it is owned...
China General Chamber of Commerce Calls Out US Politics on Sep 24, 2020
While US-China relations are at an all-time low, optimism about relations...
Verkada Disruptive Embedded Live Help on Sep 24, 2020
Call up your integrator? Have someone come by the next day? Verkada is...
IP Networking Course Fall 2020 - Last Chance - Register Now on Sep 23, 2020
Today is the last chance to register for the only IP networking course...
Drain Wire For Access Control Reader Tutorial on Sep 23, 2020
An easy-to-miss cabling specification plays a key role in access control, yet...
Norway Council of Ethics Finds Hikvision Human Rights Abuses "Ongoing" on Sep 23, 2020
Hikvision's involvement in "serious human rights abuse" in Xinjiang is...
IPVM Camera Calculator User Manual / Guide on Sep 23, 2020
Learn how to use the IPVM Camera Calculator (updated for Version 3.1). The...
Installation Course Fall 2020 - Save $50 - Last Chance on Sep 22, 2020
This is a unique installation course in a market where little practical...
SimpliSafe Business Security Launched Examined on Sep 22, 2020
SimpliSafe has launched "SimpliSafe Business Security" that the company...
FLIR CEO: Many New Fever Entrants "Making Claims That The Science Just Won't Support" on Sep 22, 2020
FLIR's CEO joins a growing number calling out risks with fever / screening...