×

SparkFun will be closed on Monday for Memorial Day (5/27). Orders placed after 2pm MT on Friday (5/24) will process and ship out on Tuesday (5/28).

Chippey

Member Since: May 2, 2008

Country: United States

  • Agreed that it's very concerning that it's not listed anywhere if this is 120 ohm cable or not. On the other point, SparkFun should not be encouraging people to violate the very explicitly laid out spec and contribute to the problem. Especially since it's popular to get SparkFun items to learn on, and people shouldn't be learning the wrong thing at the start.

  • As I posted on the interface board and calbes, DMX explicitly disallows 3-pin XLR - see section 7.1.2. It must be 5-pin XLR to be DMX. The only other connector allowed is RJ-45 for fixed or permanent installs. For more, see https://en.wikipedia.org/wiki/DMX512#Connectors. You should remove the term 'DMX' from these products to eliminate confusion.

    Sparkfun makes and sells some great things, but your "DMX" line isn't currently among them.

  • Just because some cheap gear has 3-pin XLR on it isn't an excuse to trample on very explicit standards. It is currently false advertising to label these products as DMX. USITT and ANSI have been VERY clear on this over the years, and have a very firm stance on this. You could label this cable as capable of carrying a RS-485 signal if its impedance is 120 ohms (they don't even list that, this could be mic cable for anyone ordering this cable knows), you cannot say this is a DMX cable as by its connectors (and unlisted complying impedance rating), it is NOT. Saying that any device using 3-pin XLR for RS-485 signals is DMX is patently false and misleading.

  • As I posted on the interface board, DMX explicitly disallows 3-pin XLR - see section 7.1.2. It must be 5-pin XLR to be DMX. The only other connector allowed is RJ-45 for fixed or permanent installs. For more, see https://en.wikipedia.org/wiki/DMX512#Connectors. You should remove the term 'DMX' from this product to eliminate confusion.

  • As I posted on the interface board, DMX explicitly disallows 3-pin XLR - see section 7.1.2. It must be 5-pin XLR to be DMX. The only other connector allowed is RJ-45 for fixed or permanent installs. For more, see https://en.wikipedia.org/wiki/DMX512#Connectors. You should remove the term 'DMX' from this product to eliminate confusion.

  • Just to note, this does not hold up to or follow DMX512 standards. DMX explicitly disallows 3-pin XLR - see section 7.1.2. It must be 5-pin XLR to be DMX. The only other connector allowed is RJ-45 for fixed or permanent installs. For more, see https://en.wikipedia.org/wiki/DMX512#Connectors. You should remove the term 'DMX' from this product to eliminate confusion.

  • But wasn't this same module and breakout board $149.95 just a few weeks ago? (As seen here: https://web.archive.org/web/20180916124937/https://www.sparkfun.com/ ). And surely now that this isn't listed as a SparkX product any more means you're buying the modules in larger volume, in which case shouldn't the module unit price go down? The $50 price jump seems unwarranted, and especially huge if you're going for a RTK solution since you need two of them which equates to a $100 leap in price.

  • Not metric?! Whyyyyyyyyy???? Great otherwise.

  • Engineers take the "silly hats only" directive very seriously.

  • Behold the beginnings of the Lightbulb Morris Dance. There will be no survivors.