Blaize110 Posted November 7, 2009 Share Posted November 7, 2009 At my school we have 4 Betapack 2s and a Sirius 24 in the main hall. This is used for most productions quite happily. However for the main one we usually bring up the 2 Betapacks from the drama studio. This leads to a problem in that the Sirius only has 4 DIN outs. Previously we have got around it by using a hired in desk (hired primarily because we were using movers) or last year I used a level 12 to cover the extra 2 dimmers. Was a bit more work preparing scenes but it did the job. What I was wondering is, would it be possible to wire up a DIN splitter. It would be wired up in parallel and allow one out on the desk to control the same channel on both of the dimmers. As the Sirius is a powered desk I would probably just disconnect the power from the dimmers -> desk to save any nastly situations. The other 7 pins could just be wired together then. The only problem I could see with this is that the current being drawn from the dimmers may be greater than the desk can provide. Im going to look into it today and try and find some manuals. As described above, it is only 6 dimmers being run and not 8. Just thought I'd run it by the collective wisdom of the BlueRoom before I go and break the main lighting desk :blink: Link to comment Share on other sites More sharing options...
LampTramp Posted November 7, 2009 Share Posted November 7, 2009 I think looking at the question re adding extra dimmers for your production that the answer rests in the name of the desk that you are using..If you have 4 Betapack 2's ( 4 x 6 channels = 24) and the desk is Siius 24 (note 24!!)You could get the DMX converter for the Sirius but that means addressing 2 dimmers to each channel...Try getting a Sirius 48.. or just contine with adding the Level 12 as before. Link to comment Share on other sites More sharing options...
Blaize110 Posted November 7, 2009 Author Share Posted November 7, 2009 Hmm. The deks does have a DMX output. I had never thought if using it though because we never had a demux (we just bought one). Can you soft patch two addresses to the same slider? I am aware that the 24 only has 24 individual channels but theoretically surely it would be possible to connect one output of 6 channels to 2 dimmers and therefore double up the dimmer channels (IE: 4 sockets per slider not 2). It would still only have 24 channels, I could just patch in more lights per slider. Link to comment Share on other sites More sharing options...
timsabre Posted November 7, 2009 Share Posted November 7, 2009 Your din idea would work no problem. The dimmers do not draw any significant current from the 0-10V outputs of the desk.If you use the demux you could run your extra 2 packs off the demux (say channels 13-24) and keep your original 4 packs on the analogue/DIN outputs. Channels 13-24 on the demux would then be effectively paired with channels 13-24 on the DINS. Link to comment Share on other sites More sharing options...
LampTramp Posted November 7, 2009 Share Posted November 7, 2009 If you used the DMX out then you can 'daisy chain' and double up as you want, just by setting the addresses but the dimmers that you have I think only have DIN in. Link to comment Share on other sites More sharing options...
timsabre Posted November 7, 2009 Share Posted November 7, 2009 If you used the DMX out then you can 'daisy chain' and double up as you want, just by setting the addresses but the dimmers that you have I think only have DIN in. But he said he had a demux.... Link to comment Share on other sites More sharing options...
Blaize110 Posted November 7, 2009 Author Share Posted November 7, 2009 Yeah the dimmers are only DIN in. The only way DMX would help would be if the desk can allocate more than 1 address to a slider. Ill have a look tomorrow when im in school. If I just send the 24 channels out via DMX then into the demux, then im still left with the problem of can I split and replicate the DIN signal to 2 dimmers? Link to comment Share on other sites More sharing options...
J Pearce Posted November 7, 2009 Share Posted November 7, 2009 You can softpatch several DMX channels to one control channel on a Sirius. Link to comment Share on other sites More sharing options...
LXbydesign Posted November 7, 2009 Share Posted November 7, 2009 What demux is it? If its a 48 way your sorted!! In fact you might be better off just hiring one for the show. ok, so you go DMX out of the desk and then DIN into each of the six racks quite happily. Of course because there are only 24 channels on the S24, you will have to double up on the faders - but it means you willl have more "power' on some of the channels.For example Fader 1 patch to DMX 1 + 25. Fader 2 patch to DMX 2Fader 3 patch to DMX 3+26 ...... and so on - whatever you need (rack one-DMX 1-6, rack two - 7-12, rack three-DMX 13-18, rack four DMX 19-24, rack five- DMX 25-30, rack six- 31-36) I think if I remember rightly you can patch upto about 6 different DMX address's per channel. Hope that makes sense. Link to comment Share on other sites More sharing options...
Blaize110 Posted November 7, 2009 Author Share Posted November 7, 2009 Its a 72 channel so all is good :blink: Thanks. That seems the best way of doing things. Ill have a play tomorrow. Link to comment Share on other sites More sharing options...
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