On 12/15/2006, Bill Owsley wrote:
Dredging thru the archives of my memory, I recall the 50 um of gold as a minimum requirement for the RJ - Registered Jack spec from the old Bell labs for reliability. It might now be enshined in an IPC spec, or still just a telecom detail. Hi Bill: That requirement (for a minimum of 50 micro-inches of gold) used to appear in FCC Part 68. It now appears in the corresponding industry standard TIA-968. TIA-968 specifies "hard gold," but also allows room for a "functional equivalent" in order to allow room for technical innovation. I believe there is a specified test procedure in TIA TSB 31B for demonstrating the adequacy of a proposed "functional equivalent." I'm not sure that anyone has actually succeeded in doing this. Joe Randolph Telecom Design Consultant Randolph Telecom, Inc. 781-721-2848 (USA) j...@randolph-telecom.com http://www.randolph-telecom.com <http://www.randolph-telecom.com/> ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
