Re: [WISPA] Shielded Cat 5

2006-08-28 Thread George Rogato 
The cable I am using does not have a drain wire. It is a solid aluminum 
round thin tube with a separate cat 5 cable inside. I'd use the word 
sheath, but it's not thin like foil and is not ultra flexible. Was 
fairly cheap if I recall.


George

John Scrivner wrote:

I am sure it has been asked before but...
I need a good source for shielded Cat 5 (with a drain wire). Can you 
tell me who to call and what the price is per 1000'? I think we paid 
some ridiculous amount for it recently. What's the best you have seen 
and who has it?

Thanks guys,
Scriv


George Rogato wrote:


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 


*-- Original Message ---*
From: "Eric Rogers" <[EMAIL PROTECTED]>
To: "WISPA General List" 
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 AT&T 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?

 J

Re: [WISPA] Shielded Cat 5

2006-08-28 Thread Sam Tetherow 
Last time I checked with Roger it was 142.00 for 1000'.  I would check 
with him again though, the price may have changed again since June.  
I've gotten the last couple of rolls from wisp-router for 124.00 per 1000'


   Sam Tetherow
   Sandhills Wireless

Mac Dearman wrote:

I think we paid about $120.00 per thousand and it is outdoor shielded
w/drain wire and gel filled. 


[EMAIL PROTECTED]
R. Peters P/S
5418 Vista Court
San Antonio, TX 78247


Mac 




-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of John Scrivner
Sent: Monday, August 28, 2006 6:32 AM
To: WISPA General List
Subject: [WISPA] Shielded Cat 5

I am sure it has been asked before but...
I need a good source for shielded Cat 5 (with a drain wire). Can you 
tell me who to call and what the price is per 1000'? I think we paid 
some ridiculous amount for it recently. What's the best you have seen 
and who has it?

Thanks guys,
Scriv
  


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RE: [WISPA] Shielded Cat 5

2006-08-28 Thread Mac Dearman 

I think we paid about $120.00 per thousand and it is outdoor shielded
w/drain wire and gel filled. 

[EMAIL PROTECTED]
R. Peters P/S
5418 Vista Court
San Antonio, TX 78247


Mac 



-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of John Scrivner
Sent: Monday, August 28, 2006 6:32 AM
To: WISPA General List
Subject: [WISPA] Shielded Cat 5

I am sure it has been asked before but...
I need a good source for shielded Cat 5 (with a drain wire). Can you 
tell me who to call and what the price is per 1000'? I think we paid 
some ridiculous amount for it recently. What's the best you have seen 
and who has it?
Thanks guys,
Scriv


George Rogato wrote:

> 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" 
>> 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

[WISPA] Shielded Cat 5

2006-08-28 Thread John Scrivner 

I am sure it has been asked before but...
I need a good source for shielded Cat 5 (with a drain wire). Can you 
tell me who to call and what the price is per 1000'? I think we paid 
some ridiculous amount for it recently. What's the best you have seen 
and who has it?

Thanks guys,
Scriv


George Rogato wrote:


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 


*-- Original Message ---*
From: "Eric Rogers" <[EMAIL PROTECTED]>
To: "WISPA General List" 
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 AT&T 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 Reev