Mounting Brackets

[dean]

Those inserts are metric and spec'ed as: M2.5x0.45 [mm]

[jason_nealon]

Hi guys,

I am about to buy 9 Squeezebox Booms (they just made it into Australia) and I plan to mount them into the wall cavity throughout my house. I am using them to replace an old Valet intercom system that was installed back in 1985!... so should sound a little better.

A couple of questions:

1) has anyone mounted them into a wall and any tips?
2) how many simultaneous streaming squeexebox devices can a home wireless network handle...(assuming I have solid coverage)? Will I have any issues with 9 devices?

Jason

[ccrome2]

On Tue, Oct 14, 2008 at 8:20 PM, jason_nealon <
jason_nealon.3hayjn1224041103 (AT) n...limdevices.com> wrote:

>
> Hi guys,
>
> I am about to buy 9 Squeezebox Booms (they just made it into Australia)
> and I plan to mount them into the wall cavity throughout my house.


Very cool. I'd love to see some photos!


> I am
> using them to replace an old Valet intercom system that was installed
> back in 1985!... so should sound a little better.


Will sound much better in the receive direction. The send direction will
sound better, but be less intelligible ;-)


>
>
> A couple of questions:
>
> 1) has anyone mounted them into a wall and any tips?


I haven't heard about anybody mounting them in a recess as you're proposing.



>
> 2) how many simultaneous streaming squeexebox devices can a home
> wireless network handle...(assuming I have solid coverage)? Will I have
> any issues with 9 devices?


That really depends on what you're streaming. FLAC can take up 802.11b
pretty quickly. Regular MP3 is easier on wifi networks. If your network
runs out of steam, you can simply add more APs with different SSIDs to
increase your bandwidth. I'd guess 25% efficiency at 54MPBS worst case. So
perhaps 54,000 kbps / 320kbps * 25% = 42 streams. At 25% of 11 mbps, you
get 8.5 streams at 320 kbps.

Somebody else who knows wifi better than I do should really answer.

Mounting in a recess will definitely have some effect on the RF reception.
Whether it's good or bad depends on the exact situation :-) You could also
run ethernet to the ones that are getting poor reception.

-Caleb

[funkstar]

Mounting in a recess will definitely have some effect on the RF reception.
Whether it's good or bad depends on the exact situation :-) You could also
run Ethernet to the ones that are getting poor reception.

I would recommend running cable to everywhere you can.

Wireless is great, fantastic technology... when it works. But it can be a pain in the arse when it doesn't work. And that isn't a reflection on any of the SD equipment, you just can't beat hard wiring things

[jason_nealon]

Thanks guys.

I am mounting a couple into a double brick wall and the rest into cladded wood framed walls. I am a little concerned about the brick installs (although they will have the closest range to the Transmitter). I'll send some photos for sure.

Unfortunately - it is virtually impossible for me to get Cat 5 cable through to most locations....

There is currently a multicore (6 wire) in place which was utilised for line-level audio, coms and 18v power by the intercom. It is not configured in twisted pairs... just like a standard phone line but with 6 wires. I was going to try to use this cable to pull through some cat5 - but it is impossible due to the way they were originally layed.

Actually - another question.

I know that Cat 5 has a couple of spare wires when used for transmitting data... what would my chance be of configuring the 6 core for data transmission? I am guessing the longest run would be 40 meters.

I was going to use it for running the 12v power for each unit. My father in-law is an Electrician so we are going to have all power at a master location and then measure / adjust the power to each unit to compensate for any loss in voltage due to the cable length.

[Kiwi]

Thanks guys.

Actually - another question.

I know that Cat 5 has a couple of spare wires when used for transmitting data... what would my chance be of configuring the 6 core for data transmission? I am guessing the longest run would be 40 meters.

You can run at 10 or 100 Mbps with 4 wires. Check the gauge and twists issue elsewhere on the 'net to see if that is a possibiity for you.

[ccrome2]

On Wed, Oct 15, 2008 at 3:26 PM, jason_nealon <
jason_nealon.3hcfjz1224109802 (AT) n...limdevices.com> wrote:

> I know that Cat 5 has a couple of spare wires when used for
> transmitting data... what would my chance be of configuring the 6 core
> for data transmission? I am guessing the longest run would be 40
> meters.


Whew, 40M of telephone wire. That should really challenge the ethernet
PHYs. You can certainly give it a try -- it won't cause any damage, but it
sure might not work. You can definitely use very short runs of bad wire and
it'll generally be okay. If you have a switch you can force in to 10 Mbit
mode, it may work better. All I can say is, give it a try. The worst case
is that it won't work, and you wont get wifi reception. In that case,
you'll have to bring a wifi access point somewhere within range.

-Caleb





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[jason_nealon]

Thanks guys...

I'll be having a go over the next week. I have the pin configuration so am trying to go that way first. Fingers crossed

[nacmacfeegle]

"Those inserts are metric and spec'ed as: M2.5x0.45 [mm]"

Wow, that's quite a small thread....camera mounts are twice that size, or thereabouts. a 2.5mm cap screw is going to require a 2mm hex key which will very easily misplaced.

I used to do a bit of freefall skydiving filmwork and for my camera mounts I used to make my own thumbscrews. I often had to quickly unmount the cameras for video download, changing film/tapes etc...

Get a suitable screw, make sure its not too long or it will either strip the thread insert or burst it from its fixing. Find a plastic bottle cap of a suitable size/colour etc, milk bottles or coke bottles work fine. Drill a hole in the top of the cap, push the screw (with any spacer washers to adjust the thread length) through so the screw head is inside the cap, then fill the cap with epoxy resin. Sand off any ugly epoxy once set and paint if necessary.

I didn't lose a camera in 1000 or so camera jumps so its quite secure. You don't have to scratch around for tools if you get the urge to move your Boom temporarily.

Of course you should really buy two or more if you intend to move one around a lot....
;-)

[DeVerm]

"Those inserts are metric and spec'ed as: M2.5x0.45 [mm]"
Wow, that's quite a small thread....

No, that must be a typo because 0.45 mm length is like... the thickness of a hair, just unreal and non-existent. Also, I never heard of use of M2.5 and I know a lot about metric fasteners. M3 M4 M5 or even M6 is my bet it is. Yankees don't have "the feel" for metric yet ;-)

cheers,
Nick.