Hi,
I'm not sure what you are doing, but I have two long runs with 10s of
18b20s on at least a couple hundred feet of cat5. The way I do it is 1
pair for +5, 1 pair for ground and one pair that is out and back data
lines to the punch down panel (I know it's a bus, but star wiring is way
easier in a building.) I hate to think what the effective capacitance on
the data line is. Driven by two different Link interfaces.
I do get occasional errors, but it works pretty well.
jerry
On 06/06/2016 04:28 PM, Peter Hollenbeck wrote:
My cable issues don't yet have to do with connectors. From posts I
have read here I was under the impression that 1wire would work over
Cat5 up to 100m. Not for me. I am testing with one sensor, a
waterproof DS18B20 from Adafruit. Longest cable that works is about 45
feet. I have tried a LinkUSB and a HobbyBoards powered master. Using a
Raspberry Pi.
Peter
On Mon, Jun 6, 2016 at 1:42 PM, Colin Reese <colin.re...@gmail.com
<mailto:colin.re...@gmail.com>> wrote:
You have a source for ip rated with screw terminals? I never found
one. I looked at xlr some time ago and was unsatisfied with what I
found. Another equipment vendor I know uses them, but 'pretty
waterproof' is insufficient for an end-user product if I sell it on.
Colin
> On Jun 6, 2016, at 1:29 PM, Steinar Midtskogen
<stei...@latinitas.org <mailto:stei...@latinitas.org>> wrote:
>
> I struggled a few years with the most terrible connectors that
you can
> use outdoors, rj12 or rj45, then switched to XLR connectors,
which are
> cheap and sturdy. You can get IP67 rated XLR connectors as
well, but
> even the cheapest XLR connectors seem to work well with basic
humidity
> protection.
>
> I made a couple of switchboxes using XLR connectors and put them in
> metal mailboxes. They've worked well for about 10 years now.
>
> -Steinar
>
> Colin Reese <colin.re...@gmail.com
<mailto:colin.re...@gmail.com>> writes:
>
>> Of course.
>>
>> The gender complement is this guy:
>>
>>
http://www.alliedelec.com/lumberg-automation-hirschmann-rsc-4-7/70050935/
>>
>> They're not cheap at about $20/pr, but they are both IP67 and also
>> field-serviceable (internal screw terminals). This is a rare
combination
>> that customers who do not want to solder really appreciate. I run
>> 5V/Data/Gnd/Shield as a standard pinout.
>>
>> C
>
>
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consuming the most bandwidth. Provides multi-vendor support for NetFlow,
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