According to 3 news they used a fishing rod/line to get it across!

On 4/01/2013, at 12:56 AM, yuri wrote:

On 3 January 2013 22:33, Ray | Taylor Communications wrote:

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That was awesome to read. I have been thinking about how to get cat5 across a stream this coming weekend. I don't have a bow and arrow, but I can make a butane powered spud gun.

I hope you're only using grease-filled outdoors. The sheath on most ordinary indoor cables is hygroscopic.

I hardly think it matters for temporary runs (which is what this thread is all about, right?). At home I've got some indoor Cat-5 which has been outside in the rain and snow for almost two years now and it's still fine. So I would say indoor Cat-5 should easily last a weekend outdoors. -Jasper

At 10:12 a.m. 4/01/2013, jon.brewer wrote:

On 4/01/2013, at 0:56, yuri wrote:

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I hope you're only using grease-filled outdoors. The sheath on most ordinary indoor cables is hygroscopic.

These days the good outdoor CAT5e has a white paper ribbon inside that swells up in the presence of moisture. Much nicer to work with than grease-filled cable.

indoor cat 5 lasts over 10 years outside. Eventually the sun gets the blue jacket, just as it gets the nylon blue outer sheath on fiber. (the nylon is so that it pulls thru ducts easier). The nylon lasts about 2 years, but cat-5 lasts 10. Theres some in my garden thats been there nearly 20 years. With the outdoor cat-5 stuff make sure you put a earth bond on the black sheath. It can be either PE or PVC and if deployed aerial, the wind causes loose electrons on the sheath. PVC is worse. PE will still cause some. Bonding can be a few turns of bare copper wrapped round the sheath, then taped over with pvc tape. If you run it into a house thru a tight-ish hole that will be as good. We used to have pole mounted ethernet switches at CityLink and lost a few due to static. There was a range of termination PCBs we made that had power steering diodes and surge suppressors on them. I don't think they use them now. Too technical and no one likes climbing poles. There are no issues with the signal conductors tho. All ethernet ports have a 1500V isolating transformer on them, its part of the spec and why the power levels on POE are so low - to avoid saturating the magnetics in the transformer. On our non-ethernet system we get 60watts of power down cat-5. Its how we power our cameras.

CRC engine start works well in the potato gun, I can get 250+ meters :-) On 3/01/2013 10:33 p.m., Ray | Taylor Communications wrote:

That was awesome to read. I have been thinking about how to get cat5 across a stream this coming weekend. I don't have a bow and arrow, but I can make a butane powered spud gun.

-----Original Message----- From: nznog-bounces(a)list.waikato.ac.nz [mailto:nznog-bounces(a)list.waikato.ac.nz] On Behalf Of Richard Naylor Sent: Thursday, 3 January 2013 10:11 p.m. To: Sam Russell; nznog List Subject: Re: [nznog] Temporary fibre cable across Wanganui river near Harihari - anybody got photos?

At 11:38 a.m. 3/01/2013, Sam Russell wrote:

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I'm sure this looks hilarious, does anyone have pictures of their thrown fibre?

We could run it at the basin reserve since they're planning to build a bridge over it anyway - presumably to preserve our eyes from the spectacle that is New Zealand cricket Sent from my iPhone On 5/01/2013, at 6:05 AM, Hamish MacEwan wrote:

On 3 January 2013 22:11, Richard Naylor wrote:

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Come to NZNOG-13 and buy me a beer and I'll tell you how it was made. These days I'm a little more elegant and carry a bow and arrow, with fishing line, but its really not as good as a throw line and only really good at blasting through trees.

In the old days (before helicopters were cheap to hire), power boards got cables across rivers, gullys and valleys etc using rockets with a draw line.

Sounds like the outline of a premier competitive activity at that same NZNOG 2013.

The Richard "Rockets, Bows & Throws" Naylor Cable Toss Cup?

(The parallels with the caber are clear: "It is said to have developed from the need to toss logs across narrow chasms to cross them." https://en.wikipedia.org/wiki/Caber_toss)

Hamish -- https://www.vizify.com/hamish-macewan/ _______________________________________________ NZNOG mailing list NZNOG(a)list.waikato.ac.nz http://list.waikato.ac.nz/mailman/listinfo/nznog