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Topic:
Tidy equipment racks
This thread has 137 replies. Displaying posts 106 through 120.
Post 106 made on Monday December 7, 2009 at 00:52
kstrange
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On December 6, 2009 at 21:22, caudio4c4 said...
Great looking install but just a word of caution. All of those 5way gold binding post can potentially be dangerous. I had a plate similar that the homeowner dropped a ratchet or something across while the amps were on. Shorted all the connections.

They're located about 4 feet off of the floor and the homeowner rarely enters the electronics room. Even if he did, he probably wouldn't have a wrench or rachet anywhere near these binding posts since they're on the side wall. He would call us if there were any issues and wouldn't attempt fixing anything himself.

Makes a lot of sense though, I can see where this could be an issue.........thanks for the advice.
Post 107 made on Monday December 7, 2009 at 01:04
kstrange
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On December 6, 2009 at 12:22, Gizmologist09 said...
Beautiful job but i would hate to see the inside of that wall.

The inside of the wall is actually quite clean, believe it or not. There's plenty of slack above the wall and attic access from inside the electronics room. This allowed us to trim the wires at the plates to length(+ 1 or 2").

If you pull any of the 8 gang decoras, it's very easy to see what's going on and you'll only see the wiring for that 8 gang. The main trunk that runs down is tied up neatly to the sides.

Plus, the backside is a coat closet and we furred the wall out an additional 3.5" before sheetrock went up. So there's a full 7" inside for cable management.

Last edited by kstrange on December 8, 2009 00:12.
Post 108 made on Monday December 7, 2009 at 08:12
FASTLs
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These racks all look great but the one thing I noticed is that there are no HDMI cables in any of them. How are you organizing the HDMI cables when you can only buy certain lengths?

FASTLS
Post 109 made on Monday December 7, 2009 at 21:25
SignatureSV
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most of us dont use HDMI, not worth the service calls

I only use it unless i apsolutly have to or the customer insist......However most of my customers dont know what we use except high quality cables :)
The Bitterness of Poor Quality is Remembered Long after the Sweetness of Price is Forgotten! - Benjamin Franklin
Post 110 made on Monday December 7, 2009 at 22:18
caudio4c4
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On December 7, 2009 at 08:12, FASTLs said...
These racks all look great but the one thing I noticed is that there are no HDMI cables in any of them. How are you organizing the HDMI cables when you can only buy certain lengths?

FASTLS

I think most of these systems incorporate distributed video. Its very expensive to distribute hdmi reliable, but getting to the point where it can be done over the network for almost the same cost as distributing component.
Post 111 made on Monday December 7, 2009 at 22:55
39 Cent Stamp
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I am currently working on what may be our last distributed component system. The next video distribution will be HDMI using Crestron products.

This product allows you to send HDMI & Control over fiber for 1000'.





I havent looked at all the Digital Media products but it would be lovely to only have to deal with fiber and cat5/6 at the switcher end.
Avid Stamp Collector - I really love 39 Cent Stamps
Post 112 made on Tuesday December 8, 2009 at 00:16
cjoneill
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Any idea how easy (or hard) it is to terminate the fiber? I don't know if gains have been made in the area, but fiber used to be notoriously hard to terminate.

CJ
I'm not a pro
Post 113 made on Tuesday December 8, 2009 at 00:32
39 Cent Stamp
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Things are getting easier....

hl=en_US&fs=1&">hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344">
Avid Stamp Collector - I really love 39 Cent Stamps
Post 114 made on Tuesday December 8, 2009 at 01:02
cjoneill
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Nice!

CJ
I'm not a pro
Post 115 made on Tuesday December 8, 2009 at 03:16
ifor
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On December 6, 2009 at 10:32, FreddyFreeloader said...
ifor, I'm usually not a huge fan of tying up bundles of excess cables in the rack unless you just have to. Did your customer request a certain brand of pre-made interconnects or something?

Nah, we've tried using custom cables but it took a lot longer than doing it this way.
We mostly use Ultralink except for when we sell a JBL Synthesis system, they have there own cabling from Straightwire.
Post 116 made on Tuesday December 8, 2009 at 03:22
Ernie Bornn-Gilman
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? ? ?
On November 18, 2009 at 10:48, Gizmologist09 said...
When a higher velocity draft couples with a lower velocity or static air, the resultant movement of the two including the increased movement of the lesser velocity air is effect is called the Venturi effect.

So, for there to be a Venturi effect, you have to have two flows of some sort where one affects the other. But
The Venturi effect is the reduction in fluid pressure that results when a fluid flows through a constricted section of pipe.... The fluid velocity must increase through the constriction to satisfy the equation of continuity, while its pressure must decrease due to conservation of energy: the gain in kinetic energy is balanced by a drop in pressure or a pressure gradient force.

So what you are talking about is not the Venturi effect. That's from Wikipedia, so it might not be exactly right, but it can't be THAT wrong.

The "chimney effect" is more of a confined space or channeled airway and our racks are open and draw cool air from all sides including a 1U or 2U grill at the bottom of all our racks.

I don't see how this is different from what you describe in the first quote. In both cases, you've got some air moving, and some air moving slower, and the moving air draws the non-moving air. Both cases don't mention heat at all, but if they did, chimney effect is indeed a good name for this.

On November 18, 2009 at 15:45, Gizmologist09 said...
I will let the engineers at the Greenbelt, MD facility of NASA (which was our most recent install) that they are wrong as they use the same concept for the same reason in their avionic simulation systems.

Then they were speaking sloppily. You can easily use the same concept for the same reason without using the wrong name.
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 117 made on Tuesday December 8, 2009 at 03:36
Ernie Bornn-Gilman
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On November 23, 2009 at 02:29, mariomp said...
RG6 would I guess be just a bunch of barrel connectors installed on a plate sort of like this plate only more of them (at least 20-30)

I've done several projects where I drilled 3/8" holes on 1" centers in 1" x 1" angle aluminum for F81s. We brought all cables to them, then distributed from there. One install had about forty, one about sixty cables. I ran one angle across the top of the backboard and the other down one edge.

On November 26, 2009 at 00:20, GerryA51 said...
Slack on 30 boxes does not a tidy rack make........

It's better than 30 6" extensions later. Never trust a dongle, as it's a kluge every time, and will be removed when the manufacturer gets their act together.
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
Post 118 made on Tuesday December 8, 2009 at 22:47
SignatureSV
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i took a training course by Liberty Cable a few months back.......Very easy to terminate fiber.

It takes some getting used to but after you do quite a few im sure you can do it very quick. I think liberties method is quicker and more "secure" then Panduits.
The Bitterness of Poor Quality is Remembered Long after the Sweetness of Price is Forgotten! - Benjamin Franklin
Post 119 made on Wednesday December 9, 2009 at 03:39
sofa_king_CI
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I'm very excited about all the new fiber products. ICE Cable is now shipping fiber and the Corning Termination Kit. I think its the same one that Crestron is selling or suggesting.

I have the Neopro Lightspider spec'd into a job coming up, but I think I also that Partsexpress has a HDMI over Fiber solution.
do wino hue?
Post 120 made on Wednesday December 9, 2009 at 16:15
davidcasemore
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Me don't like fibber. My left eye'sbal all ruined from tini pieces of glass that gots in dare when I was terminatin and my right eye's not workin' too well since I started a-using it to stare down the ended end of a fibber to see if it twas live or nots. Who knew? Thank god I gots one of them text to voice thingies or I wouldn't be able to know what's on this forum. Be curful!
Fins: Still Slamming' His Trunk on pilgrim's Small Weenie - One Trunk at a Time!
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