MOTM

Does anyone see a need for longer power cables? I can make them any length, 
just wondering.

Paul S.

Sent from my BlackBerry wireless handheld.

From: "Paul Schreiber"
Date: Thu, 12 Feb 2009 09:31:20 -0600
To: MOTM List<motm@yahoogroups.com>
Subject: [motm] Longer power cables?

--- In motm@yahoogroups.com, "Paul Schreiber" <synth1@...> wrote:
>
> Does anyone see a need for longer power cables? I can make them any
length, 
> just wondering.
> 
> Paul S.
>

I was able to make do with the currently available lengths in my 3-row
racks, but it did influence how and where I mounted the power
supply/breakout boards.

On a related not, how hard would it be to make the size of the
PowerOne supply optional in a 900 or 950 (or offer an "empty" module
and let you source your own PowerOnes)?  I have 2 of the stock units
sitting here from the ones I upgraded, but I probably would have just
gotten bigger ones to start with if it had been an option.  I will
probably turn one of them into a bench supply, but here again, it
would be nice to be able to order the various parts separately.

I second this. I was going to plead for this as an option next time I  
build more cabinets. I like the official MOTM-900 panel, but want to  
use my own Power One supplies. If we can buy just the panel, switch,  
and select the power distribution board, that would make my day.

On 12-Feb-09, at 11:11 AM, jneilnyc wrote:

> On a related not, how hard would it be to make the size of the
> PowerOne supply optional in a 900 or 950 (or offer an "empty" module
> and let you source your own PowerOnes)?  I have 2 of the stock units
> sitting here from the ones I upgraded, but I probably would have just
> gotten bigger ones to start with if it had been an option.  I will
> probably turn one of them into a bench supply, but here again, it
> would be nice to be able to order the various parts separately.
>

If you want to make longer power cables DIY, Blacet offers two kits that
feature 18 ga wire and connectors, one comes with a crimper. Only
available in the 4 conductor wire and connector though.
-- 
John Blacet

>>>>Does anyone see a need for longer power cables? I can make them any
length, just wondering.



Definitely. I've bought many from you over the years -- even with four
distribution boards, almost half my modules don't seem to reach with the
stock cords. Especially not with enough slack to allow one to pull the
module forward to work on it at all.

--- In motm@yahoogroups.com, "Tkacs, Ken" <ken.tkacs@...> wrote:
>
>  
> >>>>Does anyone see a need for longer power cables? I can make them any
> length, just wondering.
> 
> 
> 
> Definitely. I've bought many from you over the years -- even with four
> distribution boards, almost half my modules don't seem to reach with the
> stock cords. Especially not with enough slack to allow one to pull the
> module forward to work on it at all.
>

I don't suppose anyone makes a power cable extender (or an adaptor
that would let you connect 2 cables into one long run) we could use
when we want to pull a module out like that?

I think the standard 20" are too short.  The 30" is a good size.  A couple
of 3 footers would help out for those modules at the extremes of distance
from the PS.

George

Paul Schreiber wrote:

> Does anyone see a need for longer power cables? I can make them any length, 
> just wondering.
> 
> Paul S.

The 20" power cables have always worked fine for me, except for one module I
used a 30" one. I have relatively small cases though (10U wide and 12U
tall).

I was thinking that "MTA Couplers" would be handy for connecting two shorter
cables together.  I might try to make one later for fun. Just two headers
with their pins soldered together and insulated somehow. Or maybe a little
PCB . . . 

John L Rice

-----Original Message-----
From: motm@yahoogroups.com [mailto:motm@yahoogroups.com] On Behalf Of Paul
Schreiber
Sent: Thursday, February 12, 2009 7:31 AM
To: MOTM List
Subject: [motm] Longer power cables?

Does anyone see a need for longer power cables? I can make them any length, 
just wondering.

Paul S.

This is what I use.  It's just a 6 pin MTA connector but the pins 
extend equally long on both sides.  I just piggyback cables together 
when I need an extension to work outside the cabinet.  I always check 
it twice - red to red and white to white.  I don't know where I got 
it - been too long.

I also have soldered back to back connectors with a break in one of 
the power rails so I can measure current.  Have one for each of the 
three voltages.

Dave

--- In motm@yahoogroups.com, "John L Rice" <Drummer@...> wrote:

> I was thinking that "MTA Couplers" would be handy for connecting 
two shorter
> cables together.  I might try to make one later for fun. Just two 
headers
> with their pins soldered together and insulated somehow. Or maybe a 
little

> PCB . . . 
> 
> John L Rice