[cisco-voip] problems with dead VG224 ports with overhead inter-building wiring

Lelio Fulgenzi lelio at uoguelph.ca
Thu Jan 26 11:48:02 EST 2012


Thanks for this note. 

If you find the note from the engineer and can share it, that would be great. 

The data sheet really doesn't say anything about not running wires to buildings. That's how many campus setups are (not all) so they can use their existing cable plant. In order to get network connectivity to the building, I'd have to run fibre, install a switch and so on. Or something like ethernet extenders with a 202/204/ATA on the other side. Quite a bit of work and $$$. 

I'm hoping there's something out there from Viking or something that can help with the problem, i.e line driving, etc. 

It might even be cheaper to get a small ISR with FXS-E/DID ports on there. The OPX'ness of this port should handle stuff like that. But then I have to worry about SRST and all that stuff. :( 

*groan* 

--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (ANNU) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
Cooking with unix is easy. You just sed it and forget it. 
- LFJ (with apologies to Mr. Popeil) 


----- Original Message -----
From: "Nick Matthews" <matthnick at gmail.com> 
To: "William Paris" <William.Paris at independenthealth.com> 
Cc: "Lelio Fulgenzi" <lelio at uoguelph.ca>, "cisco-voip voyp list" <cisco-voip at puck.nether.net> 
Sent: Sunday, January 22, 2012 12:39:47 PM 
Subject: Re: [cisco-voip] problems with dead VG224 ports with overhead inter-building wiring 

In short - this isn't what the VG224 was designed for from an 
electrical perspective. Even using lightning rods and fuses the ports 
are still going to have problems. I have a very well written email 
somewhere in my archives from one of the hardware engineers for the 
VG224 that says it more eloquently, but the short story is use 
ethernet between buildings and use another VG224 or a 202/204 or ATA 
on the other side. 

-nick 

On Fri, Jan 20, 2012 at 7:31 PM, William Paris 
<William.Paris at independenthealth.com> wrote: 
> When is the cable length between the VG224 and the troublesome endpoints? 
> Not familiar with the VG224 but perhaps there is a gain setting that can be 
> changed in it? 
> 
> 
> 
> 
> 
> From: cisco-voip-bounces at puck.nether.net 
> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Lelio Fulgenzi 
> Sent: Friday, January 20, 2012 3:39 PM 
> To: cisco-voip voyp list 
> Subject: [cisco-voip] problems with dead VG224 ports with overhead 
> inter-building wiring 
> 
> 
> 
> I don't have all the details (isn't that always fun) but we seem to have 
> some problems with VG224 ports that are connected via cable plant to another 
> building. This cabling is overhead cabling. We have some pretty fancy 
> lightning arrestors installed but the problems seem to keep happening. 
> Basically the port goes dead, no dial tone, no error tone. 
> 
> The units we're using are the 4B1S-300 located here: 
> 
> http://www.platt.com/CutSheets/Circa/3b1s.pdf 
> 
> Are we using the wrong thing? Is there something better? Different? 
> 
> The client has some sensitive usage going on using these lines and these 
> outages are causing some grief to their daily operation. 
> 
> Any thoughts would be well received. 
> 
> 
> 
> --- 
> Lelio Fulgenzi, B.A. 
> Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
> (519) 824-4120 x56354 (519) 767-1060 FAX (ANNU) 
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
> Cooking with unix is easy. You just sed it and forget it. 
> - LFJ (with apologies to Mr. Popeil) 
> 
> 
> _______________________________________________ 
> cisco-voip mailing list 
> cisco-voip at puck.nether.net 
> https://puck.nether.net/mailman/listinfo/cisco-voip 
> 
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