Coemar De Sisti Australia has recently completed the conversion of Channel 7’s dimmers in Studio 7 in Melbourne, to operate on DMX512 control protocol. The dimmers where installed in the studios many years ago and operate off 0-10V control only. Channel 7 wanted to have the dimmers upgraded so that today’s standard lighting control protocol (DMX512) could be used together with the existing 0-10V control system which is from a Strand Galaxy console. The other advantage of adding DMX was the fact that it provided Channel 7 with a means of having easy backup for the Galaxy console if required.

Coemar De Sisti Australia manufactured a special PCB to carry out the works and also installed the systems into the existing dimmers. The PCB was built into a custom metal box, which made the installation and any future work on the dimmers very easy. The company also fitted standard XLR connectors in the metal box, so that a technician or operator can connect any standard DMX tester or console directly to the electronics for testing or fault-finding of the dimming system.

In addition to the conversion of the dimmers, Coemar De Sisti Australia also built and installed a simple DMX patch system for the studio. Earlier in the year, the company had also converted Channel 7’s Studio 6 dimmers (which are the old tried-and-tested Strand Electric JTM racks) to DMX.

(Lee Baldock)


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