Archive of the former Yahoo!Groups mailing list: MOTM

previous by date index next by date
previous in topic topic list next in topic

Subject: Re: PaulBr's multiples

From: "J. Larry Hendry" <jlarryh@...>
Date: 2000-01-26

> From: JWBarlow@...
> I really think using the bracket to hold a power supply bus
> is not a good idea. I don't think the bracket is designed to
> take the kind of force from repeatedly connecting and
> disconnecting those power plugs. It seems that the
> MOTM line's impressive strength is due to the combination
> of both the bracket AND the nuts on the pots. Since the
> power block would be subject to repeated insertions of the
> connectors with the force ON THE BRACKET, I think this
> would be noticeably inferior to any MOTM module.
>
> I really like Paul's idea of having a smaller block (with 9
> connectors) for the 1U modules, but my rather mundane idea
> is to mount the standard power block (the one which comes
> with the MOTM 900) on the back side of a 2U panel (drilled
> similarly to the 940 for multiple use) with some long standoffs.

I have three of those standard 12 connector power blocks (like I guess
comes on the 940). I mounted them in small plastic project boxes without
lids inside my metal rack I guess they could be mounted as you suggested,
but they also fit quite nicely on the power bracket. Your estimation of
constant plugging and unplugging is overstated in my opinion (at least for
me). However, you do have a good point about the rigidness of the bracket
when attached only by the two nuts. It can be bent one way, but not the
other. This is not really the use that Paul had intended. However, using
the Dave B method of adding a corner brace (on the opposite side) the
bracket gets REAL rigid real fast. Or drilling an addition hole NEAR the
flat part on the legs and using 4 screws.

Larry H