On Wed, Oct 23, 2013 at 11:05:19AM +0800, Andrew Elwell wrote:
> > I would move the power to the other end of the cable if possible (you
> > could use a 5V wallwart at the computer end and run it through a
> > separate pair, with just a cap on the remote end). Better if you can
> > put the wallwar
I don't know of a consensus, but I use the following:
Standard 4-conductor colors:
1: VDD (GRN)
2: N/C (YEL)
3: Data (RED)
4: GND (BLK)
In an RJ45 jack this gives the following for T568B:
3: VDD (WHT/GRN)
4: N/C (BLU)
5: DATA (WHT/BLU)
6: GRD (GRN)
If I did it again, I'd probably swap the Data
> I would move the power to the other end of the cable if possible (you
> could use a 5V wallwart at the computer end and run it through a
> separate pair, with just a cap on the remote end). Better if you can
> put the wallwart at the remote end too (minimise crosstalk).
ah OK - so make the Vcc
On Wed, Oct 23, 2013 at 10:42:05AM +0800, Andrew Elwell wrote:
> Leaping in on this for ideas:
>
> > That said, the voltage drop should be *unevenly* distributed between Vcc
> > and GND, so don't have 2 Vcc wires + 2 GND wires but rather 1 Vcc wire +
> > 3 GND wires. Voltage drop on the Vcc line i
Leaping in on this for ideas:
> That said, the voltage drop should be *unevenly* distributed between Vcc
> and GND, so don't have 2 Vcc wires + 2 GND wires but rather 1 Vcc wire +
> 3 GND wires. Voltage drop on the Vcc line isn't "seen" by the bus
> protocol, on the GND wires it's causing problems
Am 27.09.2013 08:24, schrieb Markus Gaugusch:
>
> So my question is: How can I improve the power supply on my bus?
>
I feed +8V to my extra power lines and have a small 5V regulator at any
tap.
When powering devices through the bus cable, you have to take care the
ground level isn't lifted too hig
This is not really an owfs question, but my be interesting nevertheless.
My network consists of ~70m of CAT5 cable, mostly in "bus" topology, but
also some branches (~5m). Bus power comes from an unused USB port. I use
two wires of the cat5 for +5V, two for 0V and two for 1wire (sometimes
only
