Good call Brian, Being an electrician all of my previous working life,
voltage drop is a serious consideration at 300', even with 120 volts.
Solution has always been to increase the voltage to reduce the amperage
to control voltage drop.
That is why you see transformers all over the place.
I like 48 Volts a whole lot more than 24 volts.
George
Brian Rohrbacher wrote:
First off. I'm back to a 48v 420mA power supply.
To the solution.
I ran another cat5 up the tower and plugged it into the RB 532.
Now I have one cable for poe and one cable for data, and it all works fine.
And check this. My headache went away as soon as the problem did. :)
Problem solved. NEXT!
Brian
Tom DeReggi wrote:
Amps don't mean a thing without disclosing Volts, Consider Watts
instead. 1300mA at 3V is much different than 1300mA at 18V.
The mPCI slot (SR5) is 3.3V. Power to the Motherboard is from
12-48V. W=V*A
Tom DeReggi
RapidDSL & Wireless, Inc
IntAirNet- Fixed Wireless Broadband
----- Original Message ----- From: "Mark McElvy" <[EMAIL PROTECTED]>
To: "WISPA General List" <wireless@wispa.org>
Sent: Wednesday, September 13, 2006 8:19 AM
Subject: RE: [WISPA] MT power supplies
I am surprised no one has mentioned this. I looked up power consumption
on the SR5 and it shows 800 to 1300 mA each. You state your power supply
is 700mA. I did not look up power consumption for the RB532 but I would
think you would need at least a 3A supply.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Brian Rohrbacher
Sent: Tuesday, September 12, 2006 11:51 AM
To: WISPA General List
Subject: Re: [WISPA] MT power supplies
So, does anyone know if it looks like I would be fine on the power side
of things?
I have tweaked the ethernet port settings for no gain.
Next step is to get climbing 280ft to replace board, but I'd like to
confirm power first.
Brian
Brian Rohrbacher wrote:
I have a RB 532 on 300 foot of cat 5 with 2 sr5.
I'm using poe 48v .700a power supply.
I'm seeing weirdness.
Do I have enough "juice"
Brian
--
George Rogato
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