AdamSk

Just thought I'd add that after replacing the connector with help from some speedy next day delivery the Alphapack worked perfectly again!

Just got round to testing it, the resistance seems fine - but going to test it I think I found the problem. Pin 3 on the input is just missing/broken off so there's no Data+, @kgallen was on the right track! Well I'll add replacing that to the list of jobs... Thanks all for your help.

All the other fixtures are Prolights LumiPars and StudioCOBs so respectable fixtures I think, but I did also test the Alphapack output just going into an old Zero 88 Rack 6 (FLX -> Alaphack -> Rack 6 with termination on) and it still just kills the DMX on the Alphapack as before. I should add that this testing was in a professional venue which was fully rewired a couple of years ago so I'd count on it not being a power issue!

Just had a go with some other cables - same issue on the through connection, the DMX light just turns off as soon as something is plugged in. Though it was happy enough being the second thing in the DMX chain, I'll put that error on the count of it being after 6 other devices without a terminator when I first found the issues.

Hi, We've got an Alphapack 2 which seems to be very fussy about DMX signals - specifically, it won't work unless it's the only thing in the DMX chain. When connected after another fixture, the DMX LED blinks, and if connected with another device after it (I've tested this with a dimmer pack with built in DMX termination), the DMX LED just turns off. I've seen https://www.blue-room.org.uk/topic/32671-alpha-pack-2-dmx-problems/ and checked the firmware, it is the new version. Anyone have any ideas?

Thanks for the info, works great!

With RigSync on, is it possible to manually change fixture modes/personalities from the desk, and similarly, can the DMX address be set for each fixture manually (from the desk), rather than having the desk assign them?