Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

2006-08-28 Thread Scott Reed




Me, too.

Scott Reed 


Owner 


NewWays 


Wireless Networking 


Network Design, Installation and Administration 


www.nwwnet.net 




-- Original Message 
---

From: George Rogato [EMAIL PROTECTED] 


To: WISPA General List wireless@wispa.org 


Sent: Sun, 27 Aug 2006 20:31:38 -0700 


Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik 



 I've used these guys for grounding the shield of a cat5 cable: 
 

 

http://www.oregonfast.net/gofast/Spruce/4460-D%20Shield%20connector-1.pdf 

 
 

Eric Rogers wrote: 
 

 I was just referring to the shielding by bonding it to the cat5 crimp on  

 

 ends, not soldiering them to the tower or grounding materials.  There 
is  
 

 only a friction bond between the cat5 end and the grounded casing of the  

 

 surge arrestor.  I would think the friction bond would have more  

 

 resistance in a strike, causing it to heat up faster than the resistance  

 

 of the soldier. 
 

  
 

   
 

  
 

[WINDOWS-1252?] Again, with millions of volts, I don’t think the Cat5 cable 
would hold  
 

 it as well.  The key to the whole system is the grounding to the tower 
 
 

[WINDOWS-1252?] site itself.  In this case, there are 3 runs of 5/8” or 
larger copper  
 

 running from the grounding grid to the very top of the tower and 2 cad  

 

 welded to the tower base and the grounding grid.  Hopefully the  

 

 lightning will choose the path of the copper or tower, and not my run of  

 

 cat5.  The shielding and soldier is only to dissipate static buildup 
and  
 

 keep the potential voltages as close to equal as I can. 
 

  
 

   
 

  
 

[WINDOWS-1252?] My thoughts are that if the antenna’s and equipment at the 
top are  
 

 grounded to the tower, the equipment at the bottom, and all the surge  

 

 suppression for the cat5 and coax runs are all grounded to the same  

 

 ground plane, the potential voltage difference between any one location  

 

 should be near 0, and there should be no need for it to travel up/down  

 

 my cat5 run. 
 

  
 

   
 

  
 

 Hopefully it will never need to go through my soldier joint or the  

 

 pressure of the spring steel in the surge suppression.  :) 
 

  
 

   
 

  
 

 Eric 
 

  
 

   
 

  
 

   
 

  
 

  

 

  
 

 *From:* [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]  

 

 *On Behalf Of *Scott Reed 
 

 *Sent:* Sunday, August 27, 2006 5:07 PM 
 

 *To:* WISPA General List 
 

 *Subject:* RE: [WISPA] Self Adhesive Mini PCB supports for Mikrotik 

 

  
 

   
 

  
 

 I believe that solder is probably not a good idea here.  Lightning can 
 
 

 build enough heat to melt the solder and thus break the connection.  I 
 
 

 think all ground connections need to be physical connections to provide  

 

 the best protection. 
 

  
 

 Otherwise, this looks like a good method. 
 

  
 

 There are several devices designed to give mechanical and electrical  

 

 connection to shields, etc. 
 

  
 

 Scott Reed 
 

 Owner 
 

 NewWays 
 

 Wireless Networking 
 

 Network Design, Installation and Administration 
 

 www.nwwnet.net http://www.nwwnet.net/ 

 

  
 

  
 

 *-- Original Message ---* 
 

 From: Eric Rogers [EMAIL PROTECTED] 
 

 To: WISPA General List wireless@wispa.org 
 

 Sent: Sun, 27 Aug 2006 14:36:16 -0400 
 

 Subject: RE: [WISPA] Self Adhesive Mini PCB supports for Mikrotik 
 

  
 

  I myself use them at our tower sites at the bottom AND the top.  
I had a 
 

  tower get struck, directly and lost everything...including the 
switch at 
 

  the location.  Since then, I figured 3mil volts can go 
through thin 
 

  cat5e jacketing.  Even through the shielding if it isn't 
properly 
 

  grounded.  Now I soldier the casings onto the crimp on ends 
when 
 

  possible so hopefully it will go to ground without hitting the 
copper 
 

  inside.  I use the Hyperlink surge protection, and the 
keystone jacks 
 

  are for shielded cabling, so it goes to ground.  The surge 
suppression 
 

  is just added protection.  Remember, electricity takes the 
least path of 
 

  resistance, when metal heats up, it becomes more resistant.  
So that 
 

  bolt of lightning can go where it wants... 
 

 
 

  That said, I am giving the electricity 2 points to exit to 
ground, so 
 

  hopefully I don't lose any more equipment. 
 

 
 

  The tower is WELL grounded, it is an old ATT sight, with the 
copper 
 

  mesh in the ground, and all buildings and towers have copper 
5/8 or 
 

  larger going up the sides and cad welded to them and also to the 
grid 
 

  below ground.  LOTS of money... 
 

 
 

  I don't at the CPE, just use the built-in surge suppression and 

 

  definitely ground the CPE for static.  I see it as if the 
house gets 
 

  struck by lightning; they have more to worry about than 
internet... Now 
 

  if a tower gets struck, I have hundreds down, not 1

RE: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

2006-08-27 Thread Eric Rogers
I myself use them at our tower sites at the bottom AND the top.  I had a
tower get struck, directly and lost everything...including the switch at
the location.  Since then, I figured 3mil volts can go through thin
cat5e jacketing.  Even through the shielding if it isn't properly
grounded.  Now I soldier the casings onto the crimp on ends when
possible so hopefully it will go to ground without hitting the copper
inside.  I use the Hyperlink surge protection, and the keystone jacks
are for shielded cabling, so it goes to ground.  The surge suppression
is just added protection.  Remember, electricity takes the least path of
resistance, when metal heats up, it becomes more resistant.  So that
bolt of lightning can go where it wants...

That said, I am giving the electricity 2 points to exit to ground, so
hopefully I don't lose any more equipment.

The tower is WELL grounded, it is an old ATT sight, with the copper
mesh in the ground, and all buildings and towers have copper 5/8 or
larger going up the sides and cad welded to them and also to the grid
below ground.  LOTS of money... 

I don't at the CPE, just use the built-in surge suppression and
definitely ground the CPE for static.  I see it as if the house gets
struck by lightning; they have more to worry about than internet... Now
if a tower gets struck, I have hundreds down, not 1.

Eric Rogers



-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Jeromie Reeves
Sent: Sunday, August 27, 2006 12:00 PM
To: WISPA General List
Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

Do you find that a surge supressor at the CPE is better then at the 
internal PC/Router/Switch? Or do
you use one at each end?

Jeromie


Harold Bledsoe wrote:

I can answer some of these...

It looks like a Zinwell B191 RTL8181 with a Citel indoor surge
protector.

-Hal

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Jeromie Reeves
Sent: Saturday, August 26, 2006 9:24 PM
To: WISPA General List
Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

Looks good. What radio are you using with what looks to be a Realtek 
SoC? Is that
a PoE splitter, a surge supressor, or both? How long is that RF
pigtail?

Jeromie

Brian Rohrbacher wrote:

  

I take a self tapper and run it out the bottom of my metal box, attach



  

a #12 piggy tail, and attach the other end through a hole on the 
board.  Kind of like the attached pic.  Should work, eh?

Brian

Harold Bledsoe wrote:



One word to the wise on these:  many PCBs are grounded through the 
screw holes.  If you are using plastic standoffs, you may want to 
consider grounding the board some other way...

-Hal

--
Harold Bledsoe
Deliberant Wireless
http://www.deliberant.com



From: [EMAIL PROTECTED] on behalf of Mark Nash
Sent: Fri 8/25/2006 1:04 PM
To: WISPA General List
Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik



I'll take some... Catch me offlist.

Mark
-Original Message-
From: Brian Rohrbacher [EMAIL PROTECTED]
Date: Fri, 25 Aug 2006 11:21:57
To:Conversations over a new WISP Trade Organization 
wireless@wispa.org,   [EMAIL PROTECTED]
Subject: [WISPA] Self Adhesive Mini PCB supports for Mikrotik


  

https://secure.microplastics.com/detail.asp?part=minilockpcbsupportfam
=
cbhardware 
  

They have them in stock now.  I remember there was some talk about
  

these
  

a while ago.
$50 min order so I just got 400 or so of the self adhesive PCB
  

supports.
  

I got the 5/8 standoff (should be able to fit the cards under the 
board too)

I don't need 400, so if anyone wants a few, let me know.

Otherwise, just letting ya'll know they are in stock.

www.microplastics.com
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RE: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

2006-08-27 Thread Ken Chipps
What brand and part number cable and connectors do you use for the CAT5E
cable?

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Eric Rogers
Sent: Sunday, August 27, 2006 1:36 PM
To: WISPA General List
Subject: RE: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

I myself use them at our tower sites at the bottom AND the top.  I had a
tower get struck, directly and lost everything...including the switch at
the location.  Since then, I figured 3mil volts can go through thin
cat5e jacketing.  Even through the shielding if it isn't properly
grounded.  Now I soldier the casings onto the crimp on ends when
possible so hopefully it will go to ground without hitting the copper
inside.  I use the Hyperlink surge protection, and the keystone jacks
are for shielded cabling, so it goes to ground.  The surge suppression
is just added protection.  Remember, electricity takes the least path of
resistance, when metal heats up, it becomes more resistant.  So that
bolt of lightning can go where it wants...

That said, I am giving the electricity 2 points to exit to ground, so
hopefully I don't lose any more equipment.

The tower is WELL grounded, it is an old ATT sight, with the copper
mesh in the ground, and all buildings and towers have copper 5/8 or
larger going up the sides and cad welded to them and also to the grid
below ground.  LOTS of money... 

I don't at the CPE, just use the built-in surge suppression and
definitely ground the CPE for static.  I see it as if the house gets
struck by lightning; they have more to worry about than internet... Now
if a tower gets struck, I have hundreds down, not 1.

Eric Rogers



-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Jeromie Reeves
Sent: Sunday, August 27, 2006 12:00 PM
To: WISPA General List
Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

Do you find that a surge supressor at the CPE is better then at the 
internal PC/Router/Switch? Or do
you use one at each end?

Jeromie


Harold Bledsoe wrote:

I can answer some of these...

It looks like a Zinwell B191 RTL8181 with a Citel indoor surge
protector.

-Hal

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Jeromie Reeves
Sent: Saturday, August 26, 2006 9:24 PM
To: WISPA General List
Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

Looks good. What radio are you using with what looks to be a Realtek 
SoC? Is that
a PoE splitter, a surge supressor, or both? How long is that RF
pigtail?

Jeromie

Brian Rohrbacher wrote:

  

I take a self tapper and run it out the bottom of my metal box, attach



  

a #12 piggy tail, and attach the other end through a hole on the 
board.  Kind of like the attached pic.  Should work, eh?

Brian

Harold Bledsoe wrote:



One word to the wise on these:  many PCBs are grounded through the 
screw holes.  If you are using plastic standoffs, you may want to 
consider grounding the board some other way...

-Hal

--
Harold Bledsoe
Deliberant Wireless
http://www.deliberant.com



From: [EMAIL PROTECTED] on behalf of Mark Nash
Sent: Fri 8/25/2006 1:04 PM
To: WISPA General List
Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik



I'll take some... Catch me offlist.

Mark
-Original Message-
From: Brian Rohrbacher [EMAIL PROTECTED]
Date: Fri, 25 Aug 2006 11:21:57
To:Conversations over a new WISP Trade Organization 
wireless@wispa.org,   [EMAIL PROTECTED]
Subject: [WISPA] Self Adhesive Mini PCB supports for Mikrotik


  

https://secure.microplastics.com/detail.asp?part=minilockpcbsupportfam
=
cbhardware 
  

They have them in stock now.  I remember there was some talk about
  

these
  

a while ago.
$50 min order so I just got 400 or so of the self adhesive PCB
  

supports.
  

I got the 5/8 standoff (should be able to fit the cards under the 
board too)

I don't need 400, so if anyone wants a few, let me know.

Otherwise, just letting ya'll know they are in stock.

www.microplastics.com
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RE: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

2006-08-27 Thread Scott Reed




I believe that solder is probably not a good idea here.  Lightning can build enough heat to melt the solder and thus break the connection.  I think all ground connections need to be physical connections to provide the best protection.

Otherwise, this looks like a good method.

There are several devices designed to give mechanical and electrical connection to shields, etc.

Scott Reed 


Owner 


NewWays 


Wireless Networking 


Network Design, Installation and Administration 


www.nwwnet.net 




-- Original Message 
---

From: Eric Rogers [EMAIL PROTECTED] 


To: WISPA General List wireless@wispa.org 


Sent: Sun, 27 Aug 2006 14:36:16 -0400 


Subject: RE: [WISPA] Self Adhesive Mini PCB supports for Mikrotik 



 I myself use them at our tower sites at the bottom AND the top.  I 
had a 
 

tower get struck, directly and lost everything...including the switch at 

 

the location.  Since then, I figured 3mil volts can go through thin 

 

cat5e jacketing.  Even through the shielding if it isn't properly 
 

grounded.  Now I soldier the casings onto the crimp on ends when 
 

possible so hopefully it will go to ground without hitting the copper 
 

inside.  I use the Hyperlink surge protection, and the keystone jacks 

 

are for shielded cabling, so it goes to ground.  The surge suppression 

 

is just added protection.  Remember, electricity takes the least path of 

 

resistance, when metal heats up, it becomes more resistant.  So that 

 

bolt of lightning can go where it wants... 
 
 

That said, I am giving the electricity 2 points to exit to ground, so 
 

hopefully I don't lose any more equipment. 
 
 

The tower is WELL grounded, it is an old ATT sight, with the copper 

 

mesh in the ground, and all buildings and towers have copper 5/8 or 

 

larger going up the sides and cad welded to them and also to the grid 
 

below ground.  LOTS of money...  
 
 

I don't at the CPE, just use the built-in surge suppression and 
 

definitely ground the CPE for static.  I see it as if the house gets 

 

struck by lightning; they have more to worry about than internet... Now 
 

if a tower gets struck, I have hundreds down, not 1. 
 
 

Eric Rogers 
 
 

-Original Message- 
 

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

Behalf Of Jeromie Reeves 
 

Sent: Sunday, August 27, 2006 12:00 PM 
 

To: WISPA General List 
 

Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik 
 

 

Do you find that a surge supressor at the CPE is better then at the  
 

internal PC/Router/Switch? Or do 
 

you use one at each end? 
 
 

Jeromie 
 
 

Harold Bledsoe wrote: 
 
 

I can answer some of these... 
 

 
 

It looks like a Zinwell B191 RTL8181 with a Citel indoor surge 
 

protector. 
 

 
 

-Hal 
 

 
 

-Original Message- 
 

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

 

Behalf Of Jeromie Reeves 
 

Sent: Saturday, August 26, 2006 9:24 PM 
 

To: WISPA General List 
 

Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik 
 

 
 

Looks good. What radio are you using with what looks to be a Realtek  

 

SoC? Is that 
 

a PoE splitter, a surge supressor, or both? How long is that RF 
 

pigtail? 
 

 
 

Jeromie 
 

 
 

Brian Rohrbacher wrote: 
 

 
 

   
 

 
 

I take a self tapper and run it out the bottom of my metal box, attach 

 

     
 

 
 

 
 

   
 

 
 

a #12 piggy tail, and attach the other end through a hole on the  

 

board.  Kind of like the attached pic.  Should work, eh? 

 

 
 

Brian 
 

 
 

Harold Bledsoe wrote: 
 

 
 

     
 

 
 

One word to the wise on these:  many PCBs are grounded through 
the  
 

screw holes.  If you are using plastic standoffs, you may want 
to  
 

consider grounding the board some other way... 
 

 
 

-Hal 
 

 
 

-- 
 

Harold Bledsoe 
 

Deliberant Wireless 
 

http://www.deliberant.com 
 

 
 

 
 

 
 

From: [EMAIL PROTECTED] on behalf of Mark Nash 
 

Sent: Fri 8/25/2006 1:04 PM 
 

To: WISPA General List 
 

Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik 

 

 
 

 
 

 
 

I'll take some... Catch me offlist. 
 

 
 

Mark 
 

-Original Message- 
 

From: Brian Rohrbacher [EMAIL PROTECTED] 
 

Date: Fri, 25 Aug 2006 11:21:57 
 

To:Conversations over a new WISP Trade Organization  
 

wireless@wispa.org,       [EMAIL PROTECTED] 

 

Subject: [WISPA] Self Adhesive Mini PCB supports for Mikrotik 

 

 
 

 
 

       
 

 
 

https://secure.microplastics.com/detail.asp?part=minilockpcbsupportfam 

 

= 
 

cbhardware  
 

   
 

 
 

They have them in stock now.  I remember there was some talk 
about 
 

       
 

 
 

these 
 

   
 

 
 

a while ago. 
 

$50 min order so I just got 400 or so of the self adhesive PCB 

 

       
 

 
 

supports. 
 

   
 

 
 

I got the 5/8 standoff (should be able to fit the cards under the  

 

board too) 
 

 
 

I don't

RE: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

2006-08-27 Thread Eric Rogers
Connectors I use 010-108 from www.cablesforless.com
https://www.cablesforless.com/index.asp?PageAction=VIEWPRODProdID=794.


I buy a lot of patch cables and things from them because they are fairly
cheap and they are local (2 miles away).  I try and promote local
business when I can.

I get the cable from www.cat5ecableguy.com.  Two different part
numbers... http://www.cat5cableguy.com/inc/sdetail/12771 or
http://www.cat5cableguy.com/inc/sdetail/12770.

Eric

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Ken Chipps
Sent: Sunday, August 27, 2006 2:56 PM
To: 'WISPA General List'
Subject: RE: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

What brand and part number cable and connectors do you use for the CAT5E
cable?

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Eric Rogers
Sent: Sunday, August 27, 2006 1:36 PM
To: WISPA General List
Subject: RE: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

I myself use them at our tower sites at the bottom AND the top.  I had a
tower get struck, directly and lost everything...including the switch at
the location.  Since then, I figured 3mil volts can go through thin
cat5e jacketing.  Even through the shielding if it isn't properly
grounded.  Now I soldier the casings onto the crimp on ends when
possible so hopefully it will go to ground without hitting the copper
inside.  I use the Hyperlink surge protection, and the keystone jacks
are for shielded cabling, so it goes to ground.  The surge suppression
is just added protection.  Remember, electricity takes the least path of
resistance, when metal heats up, it becomes more resistant.  So that
bolt of lightning can go where it wants...

That said, I am giving the electricity 2 points to exit to ground, so
hopefully I don't lose any more equipment.

The tower is WELL grounded, it is an old ATT sight, with the copper
mesh in the ground, and all buildings and towers have copper 5/8 or
larger going up the sides and cad welded to them and also to the grid
below ground.  LOTS of money... 

I don't at the CPE, just use the built-in surge suppression and
definitely ground the CPE for static.  I see it as if the house gets
struck by lightning; they have more to worry about than internet... Now
if a tower gets struck, I have hundreds down, not 1.

Eric Rogers



-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Jeromie Reeves
Sent: Sunday, August 27, 2006 12:00 PM
To: WISPA General List
Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

Do you find that a surge supressor at the CPE is better then at the 
internal PC/Router/Switch? Or do
you use one at each end?

Jeromie


Harold Bledsoe wrote:

I can answer some of these...

It looks like a Zinwell B191 RTL8181 with a Citel indoor surge
protector.

-Hal

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Jeromie Reeves
Sent: Saturday, August 26, 2006 9:24 PM
To: WISPA General List
Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

Looks good. What radio are you using with what looks to be a Realtek 
SoC? Is that
a PoE splitter, a surge supressor, or both? How long is that RF
pigtail?

Jeromie

Brian Rohrbacher wrote:

  

I take a self tapper and run it out the bottom of my metal box, attach



  

a #12 piggy tail, and attach the other end through a hole on the 
board.  Kind of like the attached pic.  Should work, eh?

Brian

Harold Bledsoe wrote:



One word to the wise on these:  many PCBs are grounded through the 
screw holes.  If you are using plastic standoffs, you may want to 
consider grounding the board some other way...

-Hal

--
Harold Bledsoe
Deliberant Wireless
http://www.deliberant.com



From: [EMAIL PROTECTED] on behalf of Mark Nash
Sent: Fri 8/25/2006 1:04 PM
To: WISPA General List
Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik



I'll take some... Catch me offlist.

Mark
-Original Message-
From: Brian Rohrbacher [EMAIL PROTECTED]
Date: Fri, 25 Aug 2006 11:21:57
To:Conversations over a new WISP Trade Organization 
wireless@wispa.org,   [EMAIL PROTECTED]
Subject: [WISPA] Self Adhesive Mini PCB supports for Mikrotik


  

https://secure.microplastics.com/detail.asp?part=minilockpcbsupportfam
=
cbhardware 
  

They have them in stock now.  I remember there was some talk about
  

these
  

a while ago.
$50 min order so I just got 400 or so of the self adhesive PCB
  

supports.
  

I got the 5/8 standoff (should be able to fit the cards under the 
board too)

I don't need 400, so if anyone wants a few, let me know.

Otherwise, just letting ya'll know they are in stock.

www.microplastics.com
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http://lists.wispa.org/mailman/listinfo/wireless

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RE: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

2006-08-27 Thread Eric Rogers








I was just referring to the shielding by
bonding it to the cat5 crimp on ends, not soldiering them to the tower or
grounding materials. There is only a friction bond between the cat5 end
and the grounded casing of the surge arrestor. I would think the friction
bond would have more resistance in a strike, causing it to heat up faster than
the resistance of the soldier.



Again, with millions of volts, I dont
think the Cat5 cable would hold it as well. The key to the whole system
is the grounding to the tower site itself. In this case, there are 3 runs
of 5/8 or larger copper running from the grounding grid to the very top
of the tower and 2 cad welded to the tower base and the grounding grid. Hopefully
the lightning will choose the path of the copper or tower, and not my run of
cat5. The shielding and soldier is only to dissipate static buildup and
keep the potential voltages as close to equal as I can.



My thoughts are that if the antennas
and equipment at the top are grounded to the tower, the equipment at the bottom,
and all the surge suppression for the cat5 and coax runs are all grounded to
the same ground plane, the potential voltage difference between any one
location should be near 0, and there should be no need for it to travel up/down
my cat5 run.



Hopefully it will never need to go through
my soldier joint or the pressure of the spring steel in the surge
suppression. :)



Eric 













From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf
Of Scott Reed
Sent: Sunday, August 27, 2006 5:07
PM
To: WISPA General List
Subject: RE: [WISPA] Self Adhesive
Mini PCB supports for Mikrotik





I believe that solder is probably not a good idea here. Lightning
can build enough heat to melt the solder and thus break the connection. I
think all ground connections need to be physical connections to provide the
best protection. 

Otherwise, this looks like a good method. 

There are several devices designed to give mechanical and electrical connection
to shields, etc. 

Scott Reed 
Owner 
NewWays 
Wireless Networking 
Network Design, Installation and Administration 
www.nwwnet.net 


-- Original Message ---

From: Eric Rogers [EMAIL PROTECTED] 
To: WISPA General List wireless@wispa.org 
Sent: Sun, 27 Aug 2006 14:36:16 -0400 
Subject: RE: [WISPA] Self Adhesive Mini PCB supports for Mikrotik 

 I myself use them at our tower sites at the bottom AND the top. I
had a 
 tower get struck, directly and lost everything...including the switch at 
 the location. Since then, I figured 3mil volts can go through thin 
 cat5e jacketing. Even through the shielding if it isn't properly 
 grounded. Now I soldier the casings onto the crimp on ends when 
 possible so hopefully it will go to ground without hitting the copper 
 inside. I use the Hyperlink surge protection, and the keystone jacks

 are for shielded cabling, so it goes to ground. The surge
suppression 
 is just added protection. Remember, electricity takes the least path
of 
 resistance, when metal heats up, it becomes more resistant. So that 
 bolt of lightning can go where it wants... 
 
 That said, I am giving the electricity 2 points to exit to ground, so 
 hopefully I don't lose any more equipment. 
 
 The tower is WELL grounded, it is an old ATT sight, with the copper 
 mesh in the ground, and all buildings and towers have copper 5/8 or 
 larger going up the sides and cad welded to them and also to the grid 
 below ground. LOTS of money... 
 
 I don't at the CPE, just use the built-in surge suppression and 
 definitely ground the CPE for static. I see it as if the house gets 
 struck by lightning; they have more to worry about than internet... Now 
 if a tower gets struck, I have hundreds down, not 1. 
 
 Eric Rogers 
 
 -Original Message- 
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On 
 Behalf Of Jeromie Reeves 
 Sent: Sunday, August 27, 2006 12:00 PM 
 To: WISPA General List 
 Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik 
 
 Do you find that a surge supressor at the CPE is better then at the 
 internal PC/Router/Switch? Or do 
 you use one at each end? 
 
 Jeromie 
 
 Harold Bledsoe wrote: 
 
 I can answer some of these... 
  
 It looks like a Zinwell B191 RTL8181 with a Citel indoor surge 
 protector. 
  
 -Hal 
  
 -Original Message- 
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On 
 Behalf Of Jeromie Reeves 
 Sent: Saturday, August 26, 2006 9:24 PM 
 To: WISPA General List 
 Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik 
  
 Looks good. What radio are you using with what looks to be a Realtek 
 SoC? Is that 
 a PoE splitter, a surge supressor, or both? How long is that RF 
 pigtail? 
  
 Jeromie 
  
 Brian Rohrbacher wrote: 
  
   
  
 I take a self tapper and run it out the bottom of my metal box,
attach 

  
  
   
  
 a #12 piggy tail, and attach the other end through a hole on the 
 board. Kind of like the attached pic. Should work, eh

Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

2006-08-27 Thread George Rogato

I've used these guys for grounding the shield of a cat5 cable:

http://www.oregonfast.net/gofast/Spruce/4460-D%20Shield%20connector-1.pdf



Eric Rogers wrote:
I was just referring to the shielding by bonding it to the cat5 crimp on 
ends, not soldiering them to the tower or grounding materials.  There is 
only a friction bond between the cat5 end and the grounded casing of the 
surge arrestor.  I would think the friction bond would have more 
resistance in a strike, causing it to heat up faster than the resistance 
of the soldier.


 

Again, with millions of volts, I don’t think the Cat5 cable would hold 
it as well.  The key to the whole system is the grounding to the tower 
site itself.  In this case, there are 3 runs of 5/8” or larger copper 
running from the grounding grid to the very top of the tower and 2 cad 
welded to the tower base and the grounding grid.  Hopefully the 
lightning will choose the path of the copper or tower, and not my run of 
cat5.  The shielding and soldier is only to dissipate static buildup and 
keep the potential voltages as close to equal as I can.


 

My thoughts are that if the antenna’s and equipment at the top are 
grounded to the tower, the equipment at the bottom, and all the surge 
suppression for the cat5 and coax runs are all grounded to the same 
ground plane, the potential voltage difference between any one location 
should be near 0, and there should be no need for it to travel up/down 
my cat5 run.


 

Hopefully it will never need to go through my soldier joint or the 
pressure of the spring steel in the surge suppression.  :)


 


Eric

 

 




*From:* [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 
*On Behalf Of *Scott Reed

*Sent:* Sunday, August 27, 2006 5:07 PM
*To:* WISPA General List
*Subject:* RE: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

 

I believe that solder is probably not a good idea here.  Lightning can 
build enough heat to melt the solder and thus break the connection.  I 
think all ground connections need to be physical connections to provide 
the best protection.


Otherwise, this looks like a good method.

There are several devices designed to give mechanical and electrical 
connection to shields, etc.


Scott Reed
Owner
NewWays
Wireless Networking
Network Design, Installation and Administration
www.nwwnet.net http://www.nwwnet.net/


*-- Original Message ---*
From: Eric Rogers [EMAIL PROTECTED]
To: WISPA General List wireless@wispa.org
Sent: Sun, 27 Aug 2006 14:36:16 -0400
Subject: RE: [WISPA] Self Adhesive Mini PCB supports for Mikrotik


 I myself use them at our tower sites at the bottom AND the top.  I had a
 tower get struck, directly and lost everything...including the switch at
 the location.  Since then, I figured 3mil volts can go through thin
 cat5e jacketing.  Even through the shielding if it isn't properly
 grounded.  Now I soldier the casings onto the crimp on ends when
 possible so hopefully it will go to ground without hitting the copper
 inside.  I use the Hyperlink surge protection, and the keystone jacks
 are for shielded cabling, so it goes to ground.  The surge suppression
 is just added protection.  Remember, electricity takes the least path of
 resistance, when metal heats up, it becomes more resistant.  So that
 bolt of lightning can go where it wants...

 That said, I am giving the electricity 2 points to exit to ground, so
 hopefully I don't lose any more equipment.

 The tower is WELL grounded, it is an old ATT sight, with the copper
 mesh in the ground, and all buildings and towers have copper 5/8 or
 larger going up the sides and cad welded to them and also to the grid
 below ground.  LOTS of money...

 I don't at the CPE, just use the built-in surge suppression and
 definitely ground the CPE for static.  I see it as if the house gets
 struck by lightning; they have more to worry about than internet... Now
 if a tower gets struck, I have hundreds down, not 1.

 Eric Rogers

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
 Behalf Of Jeromie Reeves
 Sent: Sunday, August 27, 2006 12:00 PM
 To: WISPA General List
 Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

 Do you find that a surge supressor at the CPE is better then at the
 internal PC/Router/Switch? Or do
 you use one at each end?

 Jeromie

 Harold Bledsoe wrote:

 I can answer some of these...
 
 It looks like a Zinwell B191 RTL8181 with a Citel indoor surge
 protector.
 
 -Hal
 
 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
 Behalf Of Jeromie Reeves
 Sent: Saturday, August 26, 2006 9:24 PM
 To: WISPA General List
 Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik
 
 Looks good. What radio are you using with what looks to be a Realtek
 SoC? Is that
 a PoE splitter, a surge supressor, or both? How long is that RF
 pigtail?
 
 Jeromie
 
 Brian Rohrbacher

Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

2006-08-26 Thread George Rogato

Nice work Brian.

You can always tell when someone cares about their work.

George

Brian Rohrbacher wrote:
I take a self tapper and run it out the bottom of my metal box, attach a 
#12 piggy tail, and attach the other end through a hole on the board.  
Kind of like the attached pic.  Should work, eh?


Brian



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RE: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

2006-08-26 Thread Scott Reed




I run that wire around to the mounting bracket.  Gets it all connected to tower.  Then, if tower is not grounded, bond it to known good ground.

Scott Reed 


Owner 


NewWays 


Wireless Networking 


Network Design, Installation and Administration 


www.nwwnet.net 




-- Original Message 
---

From: Harold Bledsoe [EMAIL PROTECTED] 


To: WISPA General List wireless@wispa.org 


Sent: Sat, 26 Aug 2006 15:38:03 -0400 


Subject: RE: [WISPA] Self Adhesive Mini PCB supports for Mikrotik 



 Perfect! :-) 
 
 

-Hal 
 
 

-Original Message- 
 

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

Behalf Of Brian Rohrbacher 
 

Sent: Friday, August 25, 2006 9:17 PM 
 

To: WISPA General List 
 

Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik 
 

 

I take a self tapper and run it out the bottom of my metal box, attach a 

 
 

#12 piggy tail, and attach the other end through a hole on the board.   

 

Kind of like the attached pic.  Should work, eh? 
 
 

Brian 
 
 

Harold Bledsoe wrote: 
 
 

One word to the wise on these:  many PCBs are grounded through the 

 

screw holes.  If you are using plastic standoffs, you may want to 
 

consider grounding the board some other way... 
 

  
 

-Hal 
 

  
 

-- 
 

Harold Bledsoe 
 

Deliberant Wireless 
 

http://www.deliberant.com 
 

 
 

 
 

 
 

From: [EMAIL PROTECTED] on behalf of Mark Nash 
 

Sent: Fri 8/25/2006 1:04 PM 
 

To: WISPA General List 
 

Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik 
 

 
 

 
 

 
 

I'll take some... Catch me offlist. 
 

 
 

Mark 
 

-Original Message- 
 

From: Brian Rohrbacher [EMAIL PROTECTED] 
 

Date: Fri, 25 Aug 2006 11:21:57 
 

To:Conversations over a new WISP Trade Organization 
 

wireless@wispa.org,       [EMAIL PROTECTED] 
 

Subject: [WISPA] Self Adhesive Mini PCB supports for Mikrotik 
 

 
 

https://secure.microplastics.com/detail.asp?part=minilockpcbsupportfam 

 

=cbhardware 
 

 
 

They have them in stock now.  I remember there was some talk about 

 

these 
 

a while ago. 
 

$50 min order so I just got 400 or so of the self adhesive PCB 
 

supports. 
 

I got the 5/8 standoff (should be able to fit the cards under the board 

 

too) 
 

 
 

I don't need 400, so if anyone wants a few, let me know. 
 

 
 

Otherwise, just letting ya'll know they are in stock. 
 

 
 

www.microplastics.com 
 

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--- 
End of Original Message 
---






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Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

2006-08-26 Thread Jeromie Reeves
Looks good. What radio are you using with what looks to be a Realtek 
SoC? Is that

a PoE splitter, a surge supressor, or both? How long is that RF pigtail?

Jeromie

Brian Rohrbacher wrote:

I take a self tapper and run it out the bottom of my metal box, attach 
a #12 piggy tail, and attach the other end through a hole on the 
board.  Kind of like the attached pic.  Should work, eh?


Brian

Harold Bledsoe wrote:

One word to the wise on these:  many PCBs are grounded through the 
screw holes.  If you are using plastic standoffs, you may want to 
consider grounding the board some other way...


-Hal

--
Harold Bledsoe
Deliberant Wireless
http://www.deliberant.com



From: [EMAIL PROTECTED] on behalf of Mark Nash
Sent: Fri 8/25/2006 1:04 PM
To: WISPA General List
Subject: Re: [WISPA] Self Adhesive Mini PCB supports for Mikrotik



I'll take some... Catch me offlist.

Mark
-Original Message-
From: Brian Rohrbacher [EMAIL PROTECTED]
Date: Fri, 25 Aug 2006 11:21:57
To:Conversations over a new WISP Trade Organization 
wireless@wispa.org,   [EMAIL PROTECTED]

Subject: [WISPA] Self Adhesive Mini PCB supports for Mikrotik

https://secure.microplastics.com/detail.asp?part=minilockpcbsupportfam=cbhardware 



They have them in stock now.  I remember there was some talk about these
a while ago.
$50 min order so I just got 400 or so of the self adhesive PCB supports.
I got the 5/8 standoff (should be able to fit the cards under the 
board too)


I don't need 400, so if anyone wants a few, let me know.

Otherwise, just letting ya'll know they are in stock.

www.microplastics.com
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