Extending network over a dry pair

Thu Dec 13 00:29:26 UTC 2018

I used to take “dry pairs” or “alarm circuits” and take SDSL modems to create high bandwidth ( up to 10Mbps, relative to the time) circuits. They were very reliable and incredibly cheap (@$22-88/mo). Regional bell at the time (or at least in my area) would make it difficult to order. Had to find the order codes.

Looks like these new units are updates to what was around, but they were very testy on line quality/distance. the first rule … ‘no load’. Suggest trying the water in the shallow end first.

LQ Marshall

From: NANOG [mailto:nanog-bounces+quincy.marshall=reged.com at nanog.org] On Behalf Of Jeremy Austin
Sent: Wednesday, December 12, 2018 4:38 PM
To: lathama at gmail.com
Cc: NANOG list <nanog at nanog.org>
Subject: Re: Extending network over a dry pair

For a comparison of distance to capacity on copper, see http://www.impulse-corp.co.uk/knowledge-base/transmission-distance-and-speed-differences-between-shdsl-and-vdsl2.htm

You might be able to pair bond -- if you had more than one pair.

If wireless isn't possible, you're likely needing satellite.

On Wed, Dec 12, 2018 at 12:35 PM Andrew Latham <lathama at gmail.com<mailto:lathama at gmail.com>> wrote:
On Wed, Dec 12, 2018 at 3:27 PM Nick Bogle <nick at bogle.se<mailto:nick at bogle.se>> wrote:
A quick question for you guys;

If you had a single dry pair (pair of copper wires originally for phones) to a remote site that was around 6 miles away, what would you use? We currently are just extending a T1 line to this site, but 1.5Mbps isn't cutting it anymore. Unfortunately it's a research site on a federally protected wildlife preserve so we can't run any new infrastructure (fiber etc) and it isn't in a geographical place where point to point wireless is practical. We were thinking there is some sort of network extender that uses some form of DSL for higher bandwidth capacity.

Any suggestions?

Look for an SHDSL Ethernet Extender

--
- Andrew "lathama" Latham -

--
Jeremy Austin
jhaustin at gmail.com<mailto:jhaustin at gmail.com>

(907) 895-2311 office
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