I guess you overlooked the following line on the NIST page: "Some designers of local area networks have used megabit per second to mean 1 048 576 bit/s, but all telecommunications engineers use it to mean 10^6 bit/s."
Note "some designers" and "all telecommunications engineers." Who are you going to believe, the "some" or the "all"? Seriously, though, I do remember people expressing LAN data rates as powers of 2. However, I thought they were wrong and commented on it. It was never resolved and I let it drop. As far as I know, 100 Mbit/s Ethernet is 100 million bit/s. The specifications I've seen are no help, though. They simply refer to Mbps (or Gbps), without clarification. I've always assumed that they meant the same by Mbps (or Mbit/s) as the designers of wide area communications facilities (remember T1 carriers at 1.544 Mbit/s and E1 carriers at 2.048 Mbit/s?). As for the SI Brochure page 121 side note, nowhere does it explicitly say that the binary prefixes are used in expressing data communications data rates (even though the name of the IEC standard includes a reference to telecommunications). Bill Potts Roseville, CA http://metric1.org [SI Navigator] -----Original Message----- From: Martin Vlietstra [mailto:[EMAIL PROTECTED] Sent: Sunday, January 20, 2008 12:33 To: [EMAIL PROTECTED]; 'U.S. Metric Association' Subject: RE: [USMA:40164] RE: UPLR Jurisdictions Bill, I was reporting what I had read on sidenote on page 121 of the 8th Edition of the SI brochure. See http://www.bipm.org/utils/common/pdf/si_brochure_8_en.pdf. Also see NIST's view: http://physics.nist.gov/cuu/Units/binary.html. I am of course open to correction as to whether you have a 100 Mib/s line or a 100 Mb/s line. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bill Potts Sent: 19 January 2008 23:06 To: U.S. Metric Association Subject: [USMA:40164] RE: UPLR Jurisdictions Not true, Martin. See my subsequent reply to Gene on this topic. Bill Potts Roseville, CA http://metric1.org [SI Navigator] -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Martin Vlietstra Sent: Saturday, January 19, 2008 10:56 To: U.S. Metric Association Subject: [USMA:40157] RE: UPLR Jurisdictions Hi Gene, Just to be pedantic - are you sure that you have a 100 000 kilobit line or is it 100 Mib/s line (1 Mi = 1024^2). Regards Martin -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: 19 January 2008 17:04 To: U.S. Metric Association Subject: [USMA:40156] RE: UPLR Jurisdictions Bill, NIST Handbook 130 is separated into clickable sections, so choosing to examine the UPLR section only should take much less than a looooong time. At my rural home, I have only dial-up access to the Internet, very slow, at the best of times only a few tens of kilobits per second. DSL is not available because of low population density. However at my office on the UI Campus, access speed is 100 000 kilobits per second (yes, 100 megabits per second) I go there when I anticipate long downloads. Gene. ---- Original message ---- >Date: Fri, 18 Jan 2008 14:01:45 -0800 >From: "Bill Potts" <[EMAIL PROTECTED]> >Subject: [USMA:40152] RE: UPLR Jurisdictions >To: "U.S. Metric Association" <[email protected]> > >I should have added that, in this case, 295 pages translates to just >under >22 megabytes. For dial-up users, that represents a looooong download time.
