Old Dimmers not listening to Hog4

[Knotts]

Designing a show in a very antiquated space (to say the least). Rented a few intels and LEDs and a hedgehog 4 to control them. Tried to patch in the dimmer rack that runs the conventionals in the space and got nothing. The racks are three pin so I converted from the back of the hog 5>3. All I get when I plug in is dimmer one at full (as soon as I plug it in) and no matter how or what I patch, I have no control on this rack. Any suggestions?
I've attached a photo of the rack.

 

[derekleffew]

An adapter, 5-3 is not going to cut it.

The three NSI DMX16 units at the bottom of the rack receive Microplex and output analog to the Electrol dimmers. See the thread https://www.controlbooth.com/threads/nsi-dmx-16-contraption-help.18860/ . To use any DMX512 console, including Hog4, you'll need a DMX512-to-Microplex protocol converter, such as a particular version of the Leviton/NSI IF-501. It may be easier and more expedient to simply rent a modern DMX dimmer rack or two (guessing you'd need a 24 x 1.2Kw and a 24 x 2.4kW), unless your rental shop has an appropriate protocol converter (might be by Fleenor or Pathway also) in stock.

Good luck.

 

[microstar]

If your Hedgehog4 is no longer working, it's because when you hooked it up to the DMX 16's Microplex 3-pin input, you applied 15 volts DC to the Hedgehog's DMX output connector via pin 2. Just because something is a 3-pin XLR doesn't mean it is DMX, hence the 5-pin standard in the first place. If everything is OK, you are very lucky.