[CUWiN-Dev] $4 PoE injectors & 15V power supplies ... Re: CU-Wireless-Dev Digest, Vol 12, Issue 3

Sun Apr 3 17:04:39 CDT 2005

The PoE injectors from PCEngines cost only $3.95.

We decided on a 15V power supply because it allows for voltage drops for
long PoE runs and it is in range of both WRAP (7V to 18V) and SOEKRIS (12V
to 54V).

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> Today's Topics:
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>    1. Re: CU-Wireless-Dev Digest, Vol 12, Issue 1 (Rick Elnor)
>    2. Re: equipment purchase options (Bob Ney)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 01 Apr 2005 19:11:54 -0800
> From: Rick Elnor <rick at nixbased.com>
> Subject: [CUWiN-Dev] Re: CU-Wireless-Dev Digest, Vol 12, Issue 1
> To: cu-wireless-dev at lists.cuwireless.net
> Message-ID: <424E0D7A.2030600 at nixbased.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
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> cu-wireless-dev-request at lists.cuwireless.net wrote:
>
>>Send CU-Wireless-Dev mailing list submissions to
>>	cu-wireless-dev at lists.cuwireless.net
>>
>>To subscribe or unsubscribe via the World Wide Web, visit
>>	http://lists.chambana.net/cgi-bin/listinfo/cu-wireless-dev
>>or, via email, send a message with subject or body 'help' to
>>	cu-wireless-dev-request at lists.cuwireless.net
>>
>>You can reach the person managing the list at
>>	cu-wireless-dev-owner at lists.cuwireless.net
>>
>>When replying, please edit your Subject line so it is more specific
>>than "Re: Contents of CU-Wireless-Dev digest..."
>>
>>
>>Today's Topics:
>>
>>   1. equipment purchase options (Daniel McLeod)
>>   2. server update: new ethernets and bios (David Young)
>>
>>
>>----------------------------------------------------------------------
>>
>>Message: 1
>>Date: Thu, 31 Mar 2005 23:17:48 +0000
>>From: "Daniel McLeod" <danielwmcleod at hotmail.com>
>>Subject: [CUWiN-Dev] equipment purchase options
>>To: cu-wireless-dev at cuwireless.net
>>Message-ID: <BAY104-F1898093015CBDFD19B0093BF470 at phx.gbl>
>>Content-Type: text/plain; format=flowed
>>
>>Hello,
>>
>>I am a member of non-specialist community group interested in starting a
>>network in Massachusetts.  I have compiled a list of equipment for a node
>>and am hoping to get feedback on whether or not these are the best
>> options.
>>I have included a link to each item and specific questions are indicated
>> by
>>a "Q".
>>
>>Any suggestions would be much appreciated and apologies if this is the
>> wrong
>>forum for such inquiry!
>>
>>Best,
>>Daniel
>>
>>****
>>
>>Draft Equipment Purchase List:
>>
>>1.  Single Board Computer:  Soekris Engineering net4526-30 board
>>     More info: http://www.soekris.com/net4526.htm
>>
>>2.  Wireless NIC:  CM9 802.11 a/b/g
>>     Info: http://metrix.net/metrix/products/radios/
>>
>>3.  Enclosure: NEMA-4x
>>     Info: http://metrix.net/metrix/products/enclosures
>>     Q: What dimensions are needed:  2.3" x 6.3" x 6.3" OR 3.5" x 6.3" x
>>6.3"
>>
>>4.  Antenna: HGV-2409U
>>     Info:
>>http://www.hyperlinktech.com/web/hg2409u.php
>>5.  Antenna Cable: LMR-400
>>     Info:
>> http://www.wiredzone.com/itemdesc.asp?ic=30973787&source=froogle
>>     Q: How many feet are needed per node?
>>
>>6.  Mount: Radio Shack Chimney Mount (cat no 15-839)
>>     Info:
>>http://www.radioshack.com/search.asp?find=chimney+mount&hp=search&SRC=1
>>
>>7.  Grounding: Gas-discharge Lightning Arrestor RFLSP3-350-BFF
>>     Info:
>>http://64.233.161.104/search?q=cache:3uJQ1smbAyMJ:www.rflinx.com/Cables-Connectors-LAR/Lightning_Arrestors_Main.htm+gas+discharge++lightning+arrestor&hl=en&ie=UTF-8
>>
>>8.  Outdoor Cable: CAT5E Patch Cord Molded W/Boot & Bubble
>>     Info:
>>http://www.cyberxlink.com/shop/product_info.php/cPath/33_42_130/products_id/505
>>     Q: How Many Ft./Node are needed?
>>
>>9.  PoE Injector: Model PS4820-POE
>>    Info: http://www.hyperlinktech.com/web/ps4820-poe.php
>>
>>
>>
>>
>>
>>
>
> Cable and length of cable will depend on where you mount the box and
> antenna, if the box is in the air close to the antenna you will be going
> a lil too high end with LMR-400. Again amount of ethernet cable will
> also depend on where you mount your box.  We have used several peices of
> the equipment above and it is good including the antenna mentioned.
> Although it maybe easier just to buy a metrix complete kit when you
> figure the time of ordering and waiting for all parts let alone assembly.
>
>
> ------------------------------
>
> Message: 2
> Date: Fri, 1 Apr 2005 19:40:04 -0800 (PST)
> From: "Bob Ney" <bney at cybernoc.net>
> Subject: Re: [CUWiN-Dev] equipment purchase options
> To: "Quantum Scientific" <Info at Quantum-Sci.com>
> Cc: cu-wireless-dev at cuwireless.net
> Message-ID: <3775.69.62.154.58.1112413204.squirrel at 69.62.154.58>
> Content-Type: text/plain;charset=iso-8859-1
>
> It will run on pretty much any voltage within reason. I dismantled one and
> it has no active components on it. Just a fuse, a diode for the LED
> current limiting and a few capacitors between the spare leads of the RJ
> and ground
>
>
> This seems nice, but remember you need two for each node.
>>
>> According to this:
>> http://store.microcom.us/ebu10101.html
>> ... it operates at 48V.  Maybe it means *up to* 48V.  No mention of
>> current capacity.
>>
>> Heck, if you're going to be putting on the connectors anyway, just an
>> RJ45
>> wall jack box ($0.95), and it saves you terminating two cable ends with
>> jacks.  Less fuss and cost.
>>
>> I'll bet the Professor could make one out of coconuts.  Or George Bush
>> could imagine one out of thin air!
>>
>> Best,
>>
>> Carl Cook
>>
>>
>> On Friday 01 April 2005 16:54, Bob Ney wrote:
>>> The only power injector I found in the Metrix catalog was $30.
>>> I have been buying the ones in the below link from wlanparts.com for
>>> $9.00
>>> and they work well
>>> with various POE capable hardware. I have even put two of them back to
>>> back
>>> to
>>> use as a power picker at the top as well as an injector at the bottom.
>>> http://www.wlanparts.com/product/NL2611CB3POE
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> End of CU-Wireless-Dev Digest, Vol 12, Issue 3
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