Re: [c-nsp] Extended demarc
james edwards wrote: What is a real word limit on how far you can extend the demarc ? This is on Cat5e cable. I get wildly different figures from Google. Late to the dance, so blame my vacation... For T1s, Kentrox had a great white paper showing that you can go 1000-2000 feet on Cat5 cable. To go farther, up to about 6000', you'd need individually-shielded twisted pair cable (ISTP), to keep the transmit-motivated electrons from corrupting the wimpy receive-side electrons on the nearby pair. pt ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
[c-nsp] Extended demarc
What is a real word limit on how far you can extend the demarc ? This is on Cat5e cable. I get wildly different figures from Google. Thanks, -- James H. Edwards Senior Network Systems Administrator Judicial Information Division jedwa...@nmcourts.gov ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Extended demarc
You're supposed to be able to go 100meters(roughly 330ft) with ethernet over Cat5e, but the longest run we've had to date is approximately 260ft with no issues going through a shared vault space very close to power lines and have not yet seen any poor performance due to the length or interference from power cabling. james edwards wrote: What is a real word limit on how far you can extend the demarc ? This is on Cat5e cable. I get wildly different figures from Google. Thanks, -- Walter Keen Network Technician Rainier Connect (o) 360-832-4024 (c) 253-302-0194 ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Extended demarc
On Wed, Jul 8, 2009 at 3:47 PM, Walter Keen walter.k...@rainierconnect.netwrote: You're supposed to be able to go 100meters(roughly 330ft) with ethernet over Cat5e, but the longest run we've had to date is approximately 260ft with no issues going through a shared vault space very close to power lines and have not yet seen any poor performance due to the length or interference from power cabling. j Thanks. I failed to mention this is a T-1. james ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Extended demarc
If you're asking about T1s, we've extended a demarc 23 stories over Category 0 building pair from the 70s or 80s and the circuit has run flawlessly. You have to test the cables when they're that old due to building sway causing shorts and things like that, but it works. T1s are designed to go several miles without repeaters on cable you'd barely want to run voice over. Ethernet IIRC can only go 300 meters or something like that, regardless of how fancy your cable is due to timing issues and the speed of light. But I don't extend Ethernet very often so I'm not an expert in that part. -Paul -Original Message- From: cisco-nsp-boun...@puck.nether.net [mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of james edwards Sent: Wednesday, July 08, 2009 5:41 PM To: cisco-nsp@puck.nether.net Subject: [c-nsp] Extended demarc What is a real word limit on how far you can extend the demarc ? This is on Cat5e cable. I get wildly different figures from Google. Thanks, -- James H. Edwards Senior Network Systems Administrator Judicial Information Division jedwa...@nmcourts.gov ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Extended demarc
james edwards wrote: What is a real word limit on how far you can extend the demarc ? This is on Cat5e cable. I get wildly different figures from Google. What underlying protocol? Ethernet? T1? ADSL? BRI? That's why the figures are wildly different. :-) -- Jay Hennigan - CCIE #7880 - Network Engineering - j...@impulse.net Impulse Internet Service - http://www.impulse.net/ Your local telephone and internet company - 805 884-6323 - WB6RDV ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Extended demarc
655 ft over 22awg, but probably just as fine over 24awg in cat5, too... You'll need to have the smartjack adjusted to a longer line build out, as well as your CSU. -- Tim On Wed, Jul 8, 2009 at 4:40 PM, james edwardslists.james.edwa...@gmail.com wrote: What is a real word limit on how far you can extend the demarc ? This is on Cat5e cable. I get wildly different figures from Google. Thanks, -- James H. Edwards Senior Network Systems Administrator Judicial Information Division jedwa...@nmcourts.gov ___ cisco-nsp mailing list cisco-...@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Extended demarc
On Wed, Jul 08, 2009 at 03:49:28PM -0600, james edwards wrote: On Wed, Jul 8, 2009 at 3:47 PM, Walter Keen walter.k...@rainierconnect.netwrote: You're supposed to be able to go 100meters(roughly 330ft) with ethernet over Cat5e, but the longest run we've had to date is approximately 260ft with no issues going through a shared vault space very close to power lines and have not yet seen any poor performance due to the length or interference from power cabling. Thanks. I failed to mention this is a T-1. ~205m for T1 on Cat5e/Cat6 +/- some for each DSX/patch panel. But probably even longer in the real world. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Extended demarc
james edwards wrote: On Wed, Jul 8, 2009 at 3:47 PM, Walter Keen walter.k...@rainierconnect.netwrote: You're supposed to be able to go 100meters(roughly 330ft) with ethernet over Cat5e, but the longest run we've had to date is approximately 260ft with no issues going through a shared vault space very close to power lines and have not yet seen any poor performance due to the length or interference from power cabling. j Thanks. I failed to mention this is a T-1. james ___ You can go several thousand feet from the smart jack to the CSU. If you are moving the smart jack then you are limited by the distance between the smart jack and the CO (or repeater). In this case you have to know the underlying carrier (HDSL, HDSL2, or real T1). ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Extended demarc
On Wed, 8 Jul 2009, Paul G. Timmins wrote: Ethernet IIRC can only go 300 meters or something like that, regardless of how fancy your cable is due to timing issues and the speed of light. But I don't extend Ethernet very often so I'm not an expert in that part. AFAIK, the length limit for ethernet is more a function of the CSMA/CD timing. On a full duplex ethernet (no collisions, so no need for collision detection), with high quality cabling, you can go beyond 100M (I think you were thinking 300ft), as you're only really having to worry about signal loss. -- Jon Lewis | I route Senior Network Engineer | therefore you are Atlantic Net| _ http://www.lewis.org/~jlewis/pgp for PGP public key_ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Extended demarc
Typically DSX-1 signal outputs from the SIJ are limited to 655 feet. - Original Message --- Subject: Re: [c-nsp] Extended demarc From: Roy r.engehau...@gmail.com Date: Wed, 08 Jul 2009 15:34:16 -0700 To: Cc: cisco-nsp@puck.nether.net You can go several thousand feet from the smart jack to the CSU. If you are moving the smart jack then you are limited by the distance between the smart jack and the CO (or repeater). In this case you have to know the underlying carrier (HDSL, HDSL2, or real T1). ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
