[SML] DMX through an E-stop button

[Sean McCarthy]

Might be a little too Rube Goldberg, but what about a device that an
active DMX transmitter (opto-iso, etc) and an 'e-stop' on the power
supply to THAT device.  That way it's just killing power to the DMX
generator.

On Tue, Jun 16, 2015 at 3:29 PM, Michael Sauder via Stagecraft
<stagecraft at theatrical.net> wrote:
> Has anyone ever run a DMX feed through an E-Stop button? (One of those big
> red buttons mounted on machinery and such).
>
> And/Or through a relay? (I have both solid state and mechanical available).
>
> I posted before about a special effect I'm doing for a project in Brazil
> (I'm finally here! Been here for 3.5 weeks so far, expect to open around
> July 4th barring any unforeseen problems), in which we have 40kW of heat
> lamps running off a 12-pack of dimmers.
>
> If anything happens to the DMX feed or show control system, we would like to
> ensure the heat lamps go off. The best way, presumably, would be something
> that cuts off power to the whole rack, but that would be more complicated
> and expensive.
>
> The way I'm tentatively looking at is to set the dimmer packs to go to zero
> on loss of signal. The e-stop button or relay would be a way of forcing loss
> of signal, even if the DMX source is still online but the system is in some
> undesirable state.
>
> Any experience with this?
>
> Thanks!
> Michael S.
>
> --
> Michael Sauder
> Email: michael.sauder at gmail.com
> Web: www.shownet.io
>
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