Dang..., posted too soon; https://www.corning.com/optical-cables-by-corning/worldwide/en/products/usb- optical-cables.html
On 22 April 2017 at 21:42, Roland Jollivet <[email protected]> wrote: > > Maybe not for CNC, but would USB-fibre -- fibre-USB cables transcend the > terrible 5m limit? > > > > On 22 April 2017 at 20:26, Linden <[email protected]> wrote: > >> When I worked in the semi con industry we used to have converters for >> regular rs232 serial com at 9200 bod. Was a 9 pin sub d at one end of the >> adaptor then 2 glass fiber cables plugged in to the other. The receptacle >> and the fiber cable were made by omron. I think the device itself was made >> in Austria and grew out of some ones basement to small production. The only >> problems we had were the glass fiber portion of the cables not being >> crossed when some one had it apart or corrosion on the little PCB due to >> exposer to HF fumes and other nasties. This was on machines designed and >> built in the early 90. >> >> On April 22, 2017 9:56:27 AM PDT, Gene Heskett <[email protected]> >> wrote: >> >On Friday 21 April 2017 19:10:23 dave wrote: >> > >> >Did you get my PM to you yesterday evening? >> > >> >> Years ago when I thought fiber might catch-on I grabbed some 62.5/120 >> >> plenum fiber at Boeing Surplus. >> >> I got as far as connecting a 10-base2 card to a fiber converter >> >> fishing out both ends of the fiber on the reel >> >> and terminating with 3M (?) hot-melt end. It worked nicely but 10 Mhz >> >> isn't straining fiber very much. The good thing about fiber is the >> >low >> >> error rate; something around 1E-12. I just disposed of the converters >> >> a few days ago. >> >> Still have several Km of fiber and a few connectors. 10-baseT works >> >> just fine thru conduit buried between desktop >> >> (house) and shop. About 35 m. >> >> >> >> Dave >> > >> >I found, at newark/element14, some more fiber fittings, in this case a >> > >> >board mount cover for a 603 sized smd led that the fiber can be plugged >> > >> >into, takes 2mm od fiber, snap fit in board holes, at $0.17 a copy from >> > >> >Bivar. Found some fiber but in 10" lengths, assembled, so still >> >looking. >> >The key brand name seems to be Bivar for the hardware. 603 size smd >> >leds >> >are similarly priced. I did find an smd phototransistor, but its target >> > >> >is not centered in the package. Not a major problem since I'll probably >> > >> >be designing the pcb, but it would be nice to use the same pcb pattern >> >on both ends. Since Bivar has a phone numnber in the pdf, I'll see if >> >I >> >can contact them Monday. Hopefully its still a good number. >> > >> >> On 04/21/2017 01:53 AM, Erik Christiansen wrote: >> >> > On 20.04.17 14:51, Gene Heskett wrote: >> >> >> The led makers have now had 40+ years to design such a package, >> >and >> >> >> I fail to understand why it has not happened. >> >> > >> >> > Somewhere near the bottom of my junkbox is an envelope with a pair >> >> > of Siemens opto-link (real product name long forgotten) devices, >> >> > which came out around 35 years ago. They're small grey rectangles >> >> > with through-hole pins, and a fibre entry with ring-nut (like on a >> >> > collet holder) on one end. Dunno if they're still marketed, though. >> >> > >> >> > At Digi-key, this Broadcom offering looks just like one end: >> >> > >> >> > >> >https://www.digikey.com/product-detail/en/broadcom-limited/SP0000638 >> >> >58/516-2872-ND/2220931 >> >> > >> >> > But that would leave the rest of my coil of shielded twisted-pair >> >> > (for RS485) cable gathering dust. With 7v of permissible >> >> > common-mode, and differential transmission for noise immunity, what >> >> > more is really needed? RS485 transceivers are around $2 to $3 IIRC. >> >> > (I saw some for 25c today, but they were surplus stock of a now >> >> > obsolete device.) >> >> > >> >> > Erik >> >> > >> >> > >> >-------------------------------------------------------------------- >> >> >---------- 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 >> >> >> >> >> >---------------------------------------------------------------------- >> >>-------- 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 >> > >> > >> >Cheers, Gene Heskett >> >-- >> >"There are four boxes to be used in defense of liberty: >> > soap, ballot, jury, and ammo. Please use in that order." >> >-Ed Howdershelt (Author) >> >Genes Web page <http://geneslinuxbox.net:6309/gene> >> > >> >----------------------------------------------------------- >> ------------------- >> >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 >> >> -- >> Sent from my Android device with K-9 Mail. Please excuse my brevity. >> ------------------------------------------------------------ >> ------------------ >> 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 >> > > ------------------------------------------------------------------------------ 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
