-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 11/13/2012 4:28 PM, Viesturs Lācis wrote: > 2012/11/14 Peter C. Wallace <[email protected]>: >> >> You can do the whole encoder interface with a 26LS32A chip (4 >> channel RS-422 receiver) > > Thank You, I did not know that such a chip exists with several > channels in one. I just checked - even our local electronics supply > store have them in stock (at least that is what their homepage > says). > >> Here's a sample schematic >> >> freeby.mesanet.com/422enc.pdf > > What are those 2 capacitors and diodes for?
The two capacitors are bypass capacitors for the 26LS32A, and should be placed physically close to the chip with short wires connecting them to the power and ground pins. One of the diodes is to protect the chip if you wire power backwards, the other is an LED to indicate the board is powered. - -- Charles Steinkuehler [email protected] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAlCiznYACgkQLywbqEHdNFwqvACg901hQCtnUDffI+7wDs8u40Dz 6n8AoJvboCjVcnDYkVY/H/jZK9xSikqm =fQSb -----END PGP SIGNATURE----- ------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
