Re: [WISPA] MT power supplies THE SOLUTION

2006-09-18 Thread Tom DeReggi

Regarding cable

That makes since. We really like the Arc wireless cable because it meets the 
need for 70% of the CPE side installs (residential and small business) with 
ease of use and the right price. The industry really needed a product like 
that.  But the ARC cable is what it is, and is no substitution for high 
grade cable when it is needed.  The Superior Essex we use now, has been 
proven to be awesome. We use it the other 25% of the time, when we have long 
runs or have to extend across gravel flat roof (where there is risk it will 
be submerged in water or walked on.). Many don't realize that it is not just 
the metal shielding that gives isolation from interference (environmental or 
self induced crosstalk). The non-metalic outer jacket and inner jacket of 
the wires also have isolating characteristics that contribute. There is 
something to be said for total thickness of a cable.


Tom DeReggi
RapidDSL  Wireless, Inc
IntAirNet- Fixed Wireless Broadband


- Original Message - 
From: Brian Rohrbacher [EMAIL PROTECTED]

To: WISPA General List wireless@wispa.org
Sent: Friday, September 15, 2006 10:33 PM
Subject: Re: [WISPA] MT power supplies THE SOLUTION


Good points.  Likely I will not touch it again unless it breaks.  I'll try 
to get a make on the good cable, but I know the cheap stuff I ran 
yesterday is the arc wireless shielded, flooded, drainwire, I picked up 6 
months ago when it was $69 a roll.


Brian

Tom DeReggi wrote:


So the question that arises, is why did that fix it?

I see two possibilities

1) Poor quality cable or cable shields. (Loss running Ethernet data 
parallel to power)

2) Sharing a CAT5 jack on the 532 main board for Power and Data.

Travis previously talked about the horrid RF interferrence that the 532 
board generated when using 48V, due to the 532 onboard power 
converter/supply.  I'm wondering if the distortion/loss was at the board 
itself apposed to cable?


It would have been interesting to know, if you used one cable for both 
data and power, but terminated the data pairs to a different Ethernet 
port instead of the POE port used for power.


What also would have been interesting would have been to know wether a 
18V power supply would have worked on a shared single cable.


Different ethernet chipsets do have different characteristics and ranges. 
So it is possible that just the different chip made the difference based 
on compatibilty or characteristics of chip.  But the other reasons are 
just as probable.


What brand (not just shield type) cable were you using? I realize that 
you would not likely pursue additional tests as you found a fix already, 
but it would be interesting to know, just so we can keep collecting data 
should we experience similar problems in the future.


We had a similar situation that was due to chipset. We ran 10 mbps 
ethernet 550 feet to our subscriber. (different radio brand).  We used a 
slightly higher power voltage to make up for cable loss.  Our laptops 
worked great over the link.  The customer's 3 identical routers could not 
stay connected for long. We were not sure if it was a speed autodetection 
issue, or the distance for the chip to work.  We installed a 10mbps Cisco 
Switch in between their router and our cable dmarc in their premise, and 
it all worked.


Tom DeReggi
RapidDSL  Wireless, Inc
IntAirNet- Fixed Wireless Broadband


- Original Message - From: Brian Rohrbacher 
[EMAIL PROTECTED]

To: WISPA General List wireless@wispa.org
Sent: Friday, September 15, 2006 9:20 AM
Subject: Re: [WISPA] MT power supplies THE SOLUTION


I started with   RB 532 on tower.  It comes down 265 feet to poe 
injector to router.  Major packet loss.

2)  switched RB 532 out.  No change.
3)  Created test setup on ground with bad board and it looked fine. 
(from laptop--6ft cablepoe265 ft---RB)

4) Blamed it on the cable, and got a cable certifier from a friend.
5)  Right before climb, I re did the test setup on the ground.  This 
time I plugged the 265 feet into the actual router instead of my laptop. 
The problen was back.  (I was bummed)
6)  One final test.  Get another 265 foot cable.  I used 265ft for power 
and 265ft for data to eth 2 or 3. Problem solved. I can only speculate 
that the chipset on RB 532 poe port is diffrent from the chipset on eth 
2/3.
And for whatever reason it was not compatable with cable, hardware, 
ect.setup.
I may never know for sure why, but I have the workaround.  Good enough 
for me.


FWIW  I ended up pulling 2 new cables (all 3 certified fine).  I used 
the original cable for data (it has real shield)  I used my new 2 
(cheapo foil shield) for power and slapped the other into eth3 for the 
heck of it.


Lessons learned for next time. Measure cable, crimp, and power up on 
ground using the EXACT same everything as what the final deployment will 
have.  And then test.


Hope that sums it all up.

Ok to directly answer your question.  Yes.  I did

Re: [WISPA] MT power supplies THE SOLUTION

2006-09-16 Thread Brian Rohrbacher
Couldn't find it.  Under cable settings is default, standard, and 
short.  From the manual it looks like default = long cable and it 
looks like default is the default.

But I have no idea how to see what mode it is on.

Brian

Rick Smith wrote:


Brian, did you try the long cable setting on that particular
interface ?

Brian Rohrbacher wrote:

I started with   RB 532 on tower.  It comes down 265 feet to 
poe injector to router.  Major packet loss.

2)  switched RB 532 out.  No change.
3)  Created test setup on ground with bad board and it looked fine. 
(from laptop--6ft cablepoe265 ft---RB)

4) Blamed it on the cable, and got a cable certifier from a friend.
5)  Right before climb, I re did the test setup on the ground.  This 
time I plugged the 265 feet into the actual router instead of my 
laptop.  The problen was back.  (I was bummed)
6)  One final test.  Get another 265 foot cable.  I used 265ft for 
power and 265ft for data to eth 2 or 3. Problem solved. I can only 
speculate that the chipset on RB 532 poe port is diffrent from the 
chipset on eth 2/3.
And for whatever reason it was not compatable with cable, hardware, 
ect.setup.
I may never know for sure why, but I have the workaround.  Good 
enough for me.


FWIW  I ended up pulling 2 new cables (all 3 certified fine).  I used 
the original cable for data (it has real shield)  I used my new 2 
(cheapo foil shield) for power and slapped the other into eth3 for 
the heck of it.


Lessons learned for next time. Measure cable, crimp, and power up on 
ground using the EXACT same everything as what the final deployment 
will have.  And then test.


Hope that sums it all up.

Ok to directly answer your question.  Yes.  I did this on the ground 
test unit.


Brian
Rohrbacher

Paul Hendry wrote:


Brian,

Just out of interest, did you try running both power and data over 
the new

cable and did you still see the same issue?

P.

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Brian Rohrbacher
Sent: 15 September 2006 02:43
To: WISPA General List
Subject: Re: [WISPA] MT power supplies THE SOLUTION

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



  



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RE: [WISPA] MT power supplies THE SOLUTION

2006-09-15 Thread Paul Hendry
Brian,

Just out of interest, did you try running both power and data over the new
cable and did you still see the same issue?

P.

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Brian Rohrbacher
Sent: 15 September 2006 02:43
To: WISPA General List
Subject: Re: [WISPA] MT power supplies THE SOLUTION

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


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Re: [WISPA] MT power supplies THE SOLUTION

2006-09-15 Thread Brian Rohrbacher
I was on 48v from the start.  But I tested 4 48v power supplies300, 
420, 700, and 1000mA units.  None of that had any effect.


The seperate cables.  One for power, one for data fixed it.

Brian

George Rogato wrote:

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







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Re: [WISPA] MT power supplies THE SOLUTION

2006-09-15 Thread Brian Rohrbacher
I started with   RB 532 on tower.  It comes down 265 feet to poe 
injector to router.  Major packet loss.

2)  switched RB 532 out.  No change.
3)  Created test setup on ground with bad board and it looked fine. 
(from laptop--6ft cablepoe265 ft---RB)

4) Blamed it on the cable, and got a cable certifier from a friend.
5)  Right before climb, I re did the test setup on the ground.  This 
time I plugged the 265 feet into the actual router instead of my 
laptop.  The problen was back.  (I was bummed)
6)  One final test.  Get another 265 foot cable.  I used 265ft for power 
and 265ft for data to eth 2 or 3. 
Problem solved. 
I can only speculate that the chipset on RB 532 poe port is diffrent 
from the chipset on eth 2/3.
And for whatever reason it was not compatable with cable, hardware, 
ect.setup.
I may never know for sure why, but I have the workaround.  Good enough 
for me.


FWIW  I ended up pulling 2 new cables (all 3 certified fine).  I used 
the original cable for data (it has real shield)  I used my new 2 
(cheapo foil shield) for power and slapped the other into eth3 for the 
heck of it.


Lessons learned for next time. 
Measure cable, crimp, and power up on ground using the EXACT same 
everything as what the final deployment will have.  And then test.


Hope that sums it all up.

Ok to directly answer your question.  Yes.  I did this on the ground 
test unit.


Brian
Rohrbacher

Paul Hendry wrote:


Brian,

Just out of interest, did you try running both power and data over the new
cable and did you still see the same issue?

P.

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Brian Rohrbacher
Sent: 15 September 2006 02:43
To: WISPA General List
Subject: Re: [WISPA] MT power supplies THE SOLUTION

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
 

   


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Re: [WISPA] MT power supplies THE SOLUTION

2006-09-15 Thread Rick Smith

Brian, did you try the long cable setting on that particular
interface ?

Brian Rohrbacher wrote:
I started with   RB 532 on tower.  It comes down 265 feet to poe 
injector to router.  Major packet loss.

2)  switched RB 532 out.  No change.
3)  Created test setup on ground with bad board and it looked fine. 
(from laptop--6ft cablepoe265 ft---RB)

4) Blamed it on the cable, and got a cable certifier from a friend.
5)  Right before climb, I re did the test setup on the ground.  This 
time I plugged the 265 feet into the actual router instead of my 
laptop.  The problen was back.  (I was bummed)
6)  One final test.  Get another 265 foot cable.  I used 265ft for power 
and 265ft for data to eth 2 or 3. Problem solved. I can only speculate 
that the chipset on RB 532 poe port is diffrent from the chipset on eth 
2/3.
And for whatever reason it was not compatable with cable, hardware, 
ect.setup.
I may never know for sure why, but I have the workaround.  Good enough 
for me.


FWIW  I ended up pulling 2 new cables (all 3 certified fine).  I used 
the original cable for data (it has real shield)  I used my new 2 
(cheapo foil shield) for power and slapped the other into eth3 for the 
heck of it.


Lessons learned for next time. Measure cable, crimp, and power up on 
ground using the EXACT same everything as what the final deployment will 
have.  And then test.


Hope that sums it all up.

Ok to directly answer your question.  Yes.  I did this on the ground 
test unit.


Brian
Rohrbacher

Paul Hendry wrote:


Brian,

Just out of interest, did you try running both power and data over the 
new

cable and did you still see the same issue?

P.

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Brian Rohrbacher
Sent: 15 September 2006 02:43
To: WISPA General List
Subject: Re: [WISPA] MT power supplies THE SOLUTION

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

  

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Re: [WISPA] MT power supplies THE SOLUTION

2006-09-15 Thread Scott Reed




I just looked at that Resources for a 532.  2 Ports are VIA Technologies.  The 3rd is Integrated Device Technologies.

Scott Reed 


Owner 


NewWays 


Wireless Networking 


Network Design, Installation and Administration 


www.nwwnet.net 




-- Original Message 
---

From: Brian Rohrbacher [EMAIL PROTECTED] 


To: WISPA General List wireless@wispa.org 


Sent: Fri, 15 Sep 2006 09:20:58 -0400 


Subject: Re: [WISPA] MT power supplies THE SOLUTION 



 I started with       RB 532 on tower.  It comes 
down 265 feet to poe  
 

injector to router.  Major packet loss. 
 

2)  switched RB 532 out.  No change. 
 

3)  Created test setup on ground with bad board and it looked 
fine.  
 

(from laptop--6ft cablepoe265 ft---RB) 
 

4) Blamed it on the cable, and got a cable certifier from a friend. 
 

5)  Right before climb, I re did the test setup on the ground.  This  

 

time I plugged the 265 feet into the actual router instead of my  
 

laptop.  The problen was back.  (I was bummed) 
 

6)  One final test.  Get another 265 foot cable.  I used 265ft 
for power  
 

and 265ft for data to eth 2 or 3.  
 

Problem solved.  
 

I can only speculate that the chipset on RB 532 poe port is diffrent  
 

from the chipset on eth 2/3. 
 

And for whatever reason it was not compatable with cable, hardware,  
 

ect.setup. 
 

I may never know for sure why, but I have the workaround.  Good enough  

 

for me. 
 
 

FWIW  I ended up pulling 2 new cables (all 3 certified fine).  I used  

 

the original cable for data (it has real shield)  I used my new 
2  
 

(cheapo foil shield) for power and slapped the other into eth3 for the  
 

heck of it. 
 
 

Lessons learned for next time.  
 

Measure cable, crimp, and power up on ground using the EXACT same  
 

everything as what the final deployment will have.  And then test. 
 

 

Hope that sums it all up. 
 
 

Ok to directly answer your question.  Yes.  I did this on the ground  

 

test unit. 
 
 

Brian 
 

Rohrbacher 
 
 

Paul Hendry wrote: 
 
 

Brian, 
 

 
 

Just out of interest, did you try running both power and data over the new 

 

cable and did you still see the same issue? 
 

 
 

P. 
 

 
 

-Original Message- 
 

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On 

 

Behalf Of Brian Rohrbacher 
 

Sent: 15 September 2006 02:43 
 

To: WISPA General List 
 

Subject: Re: [WISPA] MT power supplies THE SOLUTION 
 

 
 

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 
 

       
 

 
 

     
 

 
 

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Re: [WISPA] MT power supplies THE SOLUTION

2006-09-15 Thread Tom DeReggi



Additionally consider, just because something works 
on the ground doesn;t mean that it will work up in the air, for two 
reasons.

1) When operating outside of specs, it may take a 
period of time before the equipment starts to fail and flaws show 
up.
 (heat build up, or stress on 
devices)

2) Interferences stretched along the tower 
structure for 250 feet, may be different than interferences that exist in a coil 
at the ground.

Take note, that even though COILS can degrade 
signal,I've tested 500 feet cables on the ground in coils with Trango 
successfully, butup on a roof, failures at 200 feet in some 
circumstances.

So...

first, do the math.
second, test on ground.
third, prey that it will works after its been 
installed on the tower. :-)

The most important lesson, is to rule out unknowns 
before you install on the tower. 
Test IP configurations of radios from laptop. Use 
patch cables that will be used when testing live. Work with a set of 
knowns.
So you don't have to Climb just to rule something 
out. And always test before you climb down. 

Tom DeReggiRapidDSL  Wireless, IncIntAirNet- Fixed Wireless 
Broadband



  - Original Message - 
  From: 
  Scott Reed 
  To: WISPA General List 
  Sent: Friday, September 15, 2006 12:48 
  PM
  Subject: Re: [WISPA] MT power supplies 
  THE SOLUTION
  I just looked at that Resources for a 532. 2 
  Ports are VIA Technologies. The 3rd is Integrated Device Technologies. 
  Scott Reed Owner NewWays Wireless Networking Network 
  Design, Installation and Administration www.nwwnet.net -- Original Message 
  --- From: Brian Rohrbacher [EMAIL PROTECTED] To: 
  WISPA General List wireless@wispa.org Sent: Fri, 15 Sep 2006 
  09:20:58 -0400 Subject: Re: [WISPA] MT power supplies THE SOLUTION 
   I started withRB 532 on tower. It 
  comes down 265 feet to poe  injector to router. Major packet 
  loss.  2) switched RB 532 out. No change.  3) 
  Created test setup on ground with "bad board" and it looked fine. 
   (from laptop--6ft cablepoe265 ft---RB)  4) Blamed it 
  on the cable, and got a cable certifier from a friend.  5) Right 
  before climb, I re did the test setup on the ground. This  time 
  I plugged the 265 feet into the actual router instead of my  laptop. 
  The problen was back. (I was bummed)  6) One final 
  test. Get another 265 foot cable. I used 265ft for power  
  and 265ft for data to eth 2 or 3.  Problem solved.  I can only 
  speculate that the chipset on RB 532 poe port is diffrent  from the 
  chipset on eth 2/3.  And for whatever reason it was not compatable 
  with cable, hardware,  ect.setup.  I may never know for 
  sure why, but I have the workaround. Good enough  for me. 
FWIW I ended up pulling 2 new cables (all 3 certified 
  fine). I used  the original cable for data (it has "real" 
  shield) I used my new 2  (cheapo foil shield) for power and 
  slapped the other into eth3 for the  heck of it.   
  Lessons learned for next time.  Measure cable, crimp, and power up on 
  ground using the EXACT same  everything as what the final deployment 
  will have. And then test.   Hope that sums it all up. 
Ok to directly answer your question. Yes. I did 
  this on the ground  test unit.   Brian  
  Rohrbacher   Paul Hendry wrote:   Brian, 
 Just out of interest, did you try running both 
  power and data over the new  cable and did you still see the same 
  issue?P.-Original 
  Message-  From: [EMAIL PROTECTED] 
  [mailto:[EMAIL PROTECTED] On  Behalf Of Brian Rohrbacher 
   Sent: 15 September 2006 02:43  To: WISPA General List 
   Subject: Re: [WISPA] MT power supplies THE SOLUTION   
   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 Br

Re: [WISPA] MT power supplies THE SOLUTION

2006-09-15 Thread Brian Rohrbacher
Good points.  Likely I will not touch it again unless it breaks.  I'll 
try to get a make on the good cable, but I know the cheap stuff I ran 
yesterday is the arc wireless shielded, flooded, drainwire, I picked up 
6 months ago when it was $69 a roll.


Brian

Tom DeReggi wrote:


So the question that arises, is why did that fix it?

I see two possibilities

1) Poor quality cable or cable shields. (Loss running Ethernet data 
parallel to power)

2) Sharing a CAT5 jack on the 532 main board for Power and Data.

Travis previously talked about the horrid RF interferrence that the 
532 board generated when using 48V, due to the 532 onboard power 
converter/supply.  I'm wondering if the distortion/loss was at the 
board itself apposed to cable?


It would have been interesting to know, if you used one cable for both 
data and power, but terminated the data pairs to a different Ethernet 
port instead of the POE port used for power.


What also would have been interesting would have been to know wether a 
18V power supply would have worked on a shared single cable.


Different ethernet chipsets do have different characteristics and 
ranges. So it is possible that just the different chip made the 
difference based on compatibilty or characteristics of chip.  But the 
other reasons are just as probable.


What brand (not just shield type) cable were you using? I realize that 
you would not likely pursue additional tests as you found a fix 
already, but it would be interesting to know, just so we can keep 
collecting data should we experience similar problems in the future.


We had a similar situation that was due to chipset. We ran 10 mbps 
ethernet 550 feet to our subscriber. (different radio brand).  We used 
a slightly higher power voltage to make up for cable loss.  Our 
laptops worked great over the link.  The customer's 3 identical 
routers could not stay connected for long. We were not sure if it was 
a speed autodetection issue, or the distance for the chip to work.  We 
installed a 10mbps Cisco Switch in between their router and our cable 
dmarc in their premise, and it all worked.


Tom DeReggi
RapidDSL  Wireless, Inc
IntAirNet- Fixed Wireless Broadband


- Original Message - From: Brian Rohrbacher 
[EMAIL PROTECTED]

To: WISPA General List wireless@wispa.org
Sent: Friday, September 15, 2006 9:20 AM
Subject: Re: [WISPA] MT power supplies THE SOLUTION


I started with   RB 532 on tower.  It comes down 265 feet to 
poe injector to router.  Major packet loss.

2)  switched RB 532 out.  No change.
3)  Created test setup on ground with bad board and it looked fine. 
(from laptop--6ft cablepoe265 ft---RB)

4) Blamed it on the cable, and got a cable certifier from a friend.
5)  Right before climb, I re did the test setup on the ground.  This 
time I plugged the 265 feet into the actual router instead of my 
laptop.  The problen was back.  (I was bummed)
6)  One final test.  Get another 265 foot cable.  I used 265ft for 
power and 265ft for data to eth 2 or 3. Problem solved. I can only 
speculate that the chipset on RB 532 poe port is diffrent from the 
chipset on eth 2/3.
And for whatever reason it was not compatable with cable, hardware, 
ect.setup.
I may never know for sure why, but I have the workaround.  Good 
enough for me.


FWIW  I ended up pulling 2 new cables (all 3 certified fine).  I used 
the original cable for data (it has real shield)  I used my new 2 
(cheapo foil shield) for power and slapped the other into eth3 for 
the heck of it.


Lessons learned for next time. Measure cable, crimp, and power up on 
ground using the EXACT same everything as what the final deployment 
will have.  And then test.


Hope that sums it all up.

Ok to directly answer your question.  Yes.  I did this on the ground 
test unit.


Brian
Rohrbacher

Paul Hendry wrote:


Brian,

Just out of interest, did you try running both power and data over 
the new

cable and did you still see the same issue?

P.

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Brian Rohrbacher
Sent: 15 September 2006 02:43
To: WISPA General List
Subject: Re: [WISPA] MT power supplies THE SOLUTION

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

Re: [WISPA] MT power supplies THE SOLUTION

2006-09-14 Thread Brian Rohrbacher

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




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Re: [WISPA] MT power supplies THE SOLUTION

2006-09-14 Thread George Rogato
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





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