On 04/23/2017 08:30 PM, Gene Heskett wrote: > On Sunday 23 April 2017 23:14:34 dave wrote: > >> On 04/23/2017 12:44 PM, Chris Albertson wrote: >>> Looks like this is a dead end technology. Everyone has gone with >>> HDMI. >>> >>> But really you don't need much to send a differential signal to a >>> stepper driver Anything that can invert a 5V logic signal will work. >>> The drivers don't want RS422 levels, just logic levels. and the >>> receiver is built into the driver >>> >>> >>> But today deferential pairs are outperforming older fiber technology >>> by orders of magnitude. toslink is dead easy to use but its s at >>> least 30 years old. The best serial cables on the consumer mass >>> market are going a few ten's a giga bits per second. >>> >>> On Sun, Apr 23, 2017 at 10:18 AM, Gene Heskett <[email protected]> > wrote: >>>> On Sunday 23 April 2017 10:03:21 dave wrote: >>>>> the foxcon stuff looks a bit pricey. However ... >>>>> >>>>> http://www.mouser.com/Toshiba/Optoelectronics/Fiber-Optics/Fiber-O >>>>> ptic >>>>> -Transmitters-Receivers-Transceivers/TOSLINK/_/N-6qrgo?P=1z0zkx4Z1 >>>>> ybqc2 q >>>>> >>>>> It actually looks affordable including cables. 10 Mb/s but that >>>>> should handle anything linuxcnc needs. 10' simplex cables for a >>>>> couple of $. >>>>> >>>>> https://www.monoprice.com/Product?p_id=2669&gclid=Cj0KEQjwofHHBRDS >>>>> 0Pnh >>>>> pef89ucBEiQASEp6LIW3Tu9rI-YsCuV7XvPZJEDJ4M80OU09A9vYGSpppjMaAjjx8P >>>>> 8HAQ >>>>> >>>>> Dave >>>> Only 2 transmitter modules stocked at well over a 10 dollar bill >>>> each. No receiver modules are stocked at any price. All hat, no >>>> cattle. >>>> >>>> That is a good enough price on ready-made cables if I wanted to do >>>> it with to$link. But the above hardware pricing is not a viable >>>> choice when you need lots of them. I have no intention of spending >>>> north of $600 for 10 fiber links. >>>> >>>> Good info Dave, thanks. >> So what you really need ??? is inexpensive Rx and Tx and then plastic >> fiber plus an epoxy to bond the >> two with low losses into a usable static configuration. Eh? >> >> Dave > You are getting warmer, Dave, although I'd druther use go2 or goop as > there's a small chance of getting it apart again should it be needed. > > Cheers, Gene Heskett AFIK you want a clear adhesive with a refractive index close to 1.49 to match the PMMA core of the fiber.
Dave ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
