[simpits-tech] How to hook up fans and lights

[Roy Coates]

On Wed, 7 May 2003 Inventmd@aol.com wrote:

> Wiring connectors
>
> Here are some wiring questions for U electricians out there.
>
> 1.  In order to wire 3.6 V white LED's (three in series at the time) to a 12
> V low amperage power source, do you think standard telephone wire is safe?
> Or will I need a thicker gauge cable?  I have lots of category 5 wire and
> standard phone cable along with RJ11 and RJ45 jacks.  This type of cabling
> would make it easy to remove panels.

Should be fine. I think those white LED's run at about 30mA which is a
very low current.

> 2.  Does it make sense to create a jack receptacle and a jack receptacle at
> the power source so that one can easily remove the panel or conversely the
> power source?  Or should I connect the wires directly to the power source
> without a jack and simply have the wires extend to the panel.  Obviously with
> one jack there is less to go wrong and less soldering involved.

Personal choice. I prefer connectors so that I can remove things for
repair or upgrade.


> 3.  How have people been connecting the Hagstrom keyboard emulator output to
> the switches?  In other words, what kind of connectors are you all using?  I
> was thinking of using RJ 45 connectors (ethernet jack receptacle at the panel
> level and some other multipin connector at the computer.

Hagstrom do a breakout board, the IOX36 which gives you screw terminals
which makes life a lot easier. I used 25-pin D-type connectors simply
because I had a bucket full of them.

See: http://www.simpits.org/articles/ke72/KE72.html for pics of both.


Roy.