LarryF Posted April 16, 2014 Report Share Posted April 16, 2014 I'm curious if anyone knows of a good (any) use for the 5 Volt pin on the various wireless transmitters that are using the 3 pin Lemo connector? This is called pin 2 by Shure and others and pin 1 by Sennheiser, but they are all the same pin. The audio input pin is pin 3 and is tied to 5 Volts through a bias resistor so a three wire mic tied to all 3 pins wouldn't have a voltage difference and wouldn't work. The various manufacturers imply the three pin input is for two wire mic systems only with pin 1 ground and pin 3 bias-audio. One says talk to the mic maker if you have a three wire mic. So the burning question is "What is that 5 Volt supply on pin 2 for?" given that pin 3 is also biased at 5 Volts. Best Regards, Larry Fisher Lectrosonics Quote Link to comment Share on other sites More sharing options...
jason porter Posted April 16, 2014 Report Share Posted April 16, 2014 Who are you and what have you done with Larry Fisher? Quote Link to comment Share on other sites More sharing options...
Mark Orusa Posted April 16, 2014 Report Share Posted April 16, 2014 Shall I quote the Senator and tell you to contact the manufacturer? Mark O. Quote Link to comment Share on other sites More sharing options...
LarryF Posted April 16, 2014 Author Report Share Posted April 16, 2014 Shall I quote the Senator and tell you to contact the manufacturer? Mark O. Oh, Lord. I deserved that. I will say there is nothing on their websites about its use. If it keeps me awake tonight, I'll have to give in and contact our good friends at our arch competitors. Best, Larry F Lectro Quote Link to comment Share on other sites More sharing options...
LarryF Posted April 16, 2014 Author Report Share Posted April 16, 2014 Of course by asking here, I can see if anyone is actually using that pin. Thanks, LEF Quote Link to comment Share on other sites More sharing options...
Peter Mega Posted April 16, 2014 Report Share Posted April 16, 2014 Please don't start putting different connectors on lectro transmitters!! The change from non servo to servo was traumatic enough!! Quote Link to comment Share on other sites More sharing options...
glenn Posted April 16, 2014 Report Share Posted April 16, 2014 The three pins are only ever used with 3 wire microphones. In the three wire case the pull up on the audio pin is changed to a pull down to bias the 3 wire mic properly. This is a custom order when we do it at Zaxcom. Glenn Quote Link to comment Share on other sites More sharing options...
LarryF Posted April 16, 2014 Author Report Share Posted April 16, 2014 Thanks, Glenn. Best Regards, Larry Fisher Quote Link to comment Share on other sites More sharing options...
Max Futterman Posted April 17, 2014 Report Share Posted April 17, 2014 ^ Soooo surreal. Quote Link to comment Share on other sites More sharing options...
Matt Radlauer Posted April 17, 2014 Report Share Posted April 17, 2014 Dog n cats living together! Mass hysteria! Quote Link to comment Share on other sites More sharing options...
LarryF Posted April 17, 2014 Author Report Share Posted April 17, 2014 This all makes me wonder why not wire pin 2 to a pull down (source) resistor from the get go and make life easier for the three wire mic manufacturers? It doesn't seem there is currently any good use for it as a 5 Volt supply though I'd feel better about the balance of the Universe if there were one. Best Regards Larry F Lectro Quote Link to comment Share on other sites More sharing options...
LarryF Posted April 17, 2014 Author Report Share Posted April 17, 2014 Please don't start putting different connectors on lectro transmitters!! The change from non servo to servo was traumatic enough!! Hi Peter, We thought about announcing our new TA6, 6 pin input connector with new functions on this April the 1st but figured someone would miss the joke and we'd be soaking our incoming mail in water barrels for the next 6 months. Best, LEF Quote Link to comment Share on other sites More sharing options...
ProSound Posted April 17, 2014 Report Share Posted April 17, 2014 Hi Peter, We thought about announcing our new TA6, 6 pin input connector with new functions on this April the 1st but figured someone would miss the joke and we'd be soaking our incoming mail in water barrels for the next 6 months. Best, LEF +1 that would have been funny maybe next April 1 a press release with whole product line changing to TA6 Quote Link to comment Share on other sites More sharing options...
Eric Toline Posted April 17, 2014 Report Share Posted April 17, 2014 A TA anything is better than anything marked LEMO. Eric Quote Link to comment Share on other sites More sharing options...
LarryF Posted April 17, 2014 Author Report Share Posted April 17, 2014 A TA anything is better than anything marked LEMO. Eric IMHO, after saying that wireless type LEMO's are outrageously expensive, there's not much else positive. Best, Larry F Lectro Quote Link to comment Share on other sites More sharing options...
Eric Toline Posted April 17, 2014 Report Share Posted April 17, 2014 Why wireless manufacturers don't standardize on one type of connector is beyond understanding. I vote for a TA5, more pins than will ever be needed and all the lav mics would have the same connectors. 3 pin XLR's are the basic in/out standard for all mixers. K.I.S.S. Get a clue guys. Eric Quote Link to comment Share on other sites More sharing options...
LarryF Posted April 17, 2014 Author Report Share Posted April 17, 2014 Hi Eric, If we had it to do over again, with modern Fet switches and switching power supplies, I'd probably choose a TA3 as the connector and do all the voltage choosing and line level selection in software. The other choice would be a 3 pin Neutrik connector that is tiny and with the usual Neutrik well thought out usability. I am serious as can be in my previous post about having to check for letter bombs. Best, Larry F Lectro Quote Link to comment Share on other sites More sharing options...
Ze Frias Posted April 17, 2014 Report Share Posted April 17, 2014 Why wireless manufacturers don't standardize on one type of connector is beyond understanding. I vote for a TA5, more pins than will ever be needed and all the lav mics would have the same connectors. 3 pin XLR's are the basic in/out standard for all mixers. K.I.S.S. Get a clue guys. Eric +1 Quote Link to comment Share on other sites More sharing options...
studiomprd Posted April 17, 2014 Report Share Posted April 17, 2014 let's get them all to change over at the same time... Quote Link to comment Share on other sites More sharing options...
Tom Visser Posted April 17, 2014 Report Share Posted April 17, 2014 It seems obvious, the "Fischer connector". More expensive and rarer than Lemo. Quote Link to comment Share on other sites More sharing options...
Geoff Tirrell Posted April 17, 2014 Report Share Posted April 17, 2014 +1 I would be down with re terminating/ replacing all of mine but only if all the manufactures signed on and did it as an industry standards thing. I am big on uniform connectors, and am a big believer that in other ways it is one of the major "perk factors" differentiating pro kit from that carried by others. Quote Link to comment Share on other sites More sharing options...
Tom Visser Posted April 17, 2014 Report Share Posted April 17, 2014 Well if were seriously considering this, let's include the waterproof lineup in the discussion. Shouldn't all setups have some water resistance anyways? With all the sweaty actors we deal with, I feel this is necessary. That being said, what's a better option than the screw-lock gasket equipped 2.5mm connector that Lectro currently uses with its MM / WM line? Quote Link to comment Share on other sites More sharing options...
Eric Toline Posted April 17, 2014 Report Share Posted April 17, 2014 A 3.5mm TRS locking water proof. Rean offers them at about $4.50ea. Eric Quote Link to comment Share on other sites More sharing options...
LarryF Posted April 17, 2014 Author Report Share Posted April 17, 2014 A 3.5mm TRS locking water proof. Rean offers them at about $4.50ea. Eric Hi Eric, I can't find them on the Rean site. I even Googled AND Binged. Do you have a link? Thanks, LEF Quote Link to comment Share on other sites More sharing options...
RadoStefanov Posted April 17, 2014 Report Share Posted April 17, 2014 I would be down with re terminating/ replacing all of mine but only if all the manufactures signed on and did it as an industry standards thing. I am big on uniform connectors, and am a big believer that in other ways it is one of the major "perk factors" differentiating pro kit from that carried by others. It is not going to happen unless everybody converts to 3 pin lectro. TA4f is the other majority but I dont see sennheiser making their wireless larger . Quote Link to comment Share on other sites More sharing options...
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