It's exactly the same as mine Andy. When I fitted my LW-50K's into mine I had to add a small +15/-15V PSU (I used one of norm's ones off of EBay) to power the DMX board because it derived it's power form the old scanner boards.
The DMX board and scanners are made by Spacelas Andy and details are on their website about them.
I have had to replace my DMX board as it went pop on me for no reason.
Matey at Silverrays number is: 07816995837.
Hope this helps.
If you want to ring me then: 07751222746
Jim
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My Brain urt's!
Continuously in Awe! of (H)Al, the Photonlexicon Font of Complete Knowledge - The (H)Al'PL Database of complete puss that no one needs to know or ever trusts as he ain't really got a Scooby doo about now't!