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diff --git a/html/driver23.htm b/html/driver23.htm deleted file mode 100644 index 8d6fc9d9eb2e..000000000000 --- a/html/driver23.htm +++ /dev/null @@ -1,178 +0,0 @@ -<HTML> -<HEAD> - <META NAME="GENERATOR" CONTENT="Adobe PageMill 3.0 per Windows"> - <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> - <TITLE>PTB Modem Time Service </TITLE> -</HEAD> -<BODY> - -<H3>PTB Modem Time Service and other European Laboratories Time -Services</H3> - -<HR ALIGN=LEFT> - -<H4>Synopsis</H4> - -<P>Address: 127.127.23.<I>u</I> <BR> -Reference ID: <TT>PTB</TT> <BR> -Driver ID: <TT>ACTS_PTB</TT><BR> -Serial Port: <TT>/dev/ptb<I>u</I></TT>; 1200 baud, 8-bits, no -parity <BR> -Requires: <TT>/usr/include/sys/termios.h</TT> header file with -modem control</P> - -<H4>Description</H4> - -<P>This driver supports the PTB Automated Computer Time Service -(ACTS) and it is a modified version of the NIST ACTS driver so -see it for more informations..</P> - -<P>It periodically dials a prespecified telephone number, receives -the PTB timecode data and calculates the local clock correction. -It designed primarily for use when neither a radio clock nor connectivity -to Internet time servers is available. For the best accuracy, -the individual telephone line/modem delay needs to be calibrated -using outside sources.</P> - -<P>The only change between this driver and the NIST one is the -data format. Infact PTB data format is the following:</P> - -<P><FONT SIZE="-1" FACE="Courier New">Data format<BR> -0000000000111111111122222222223333333333444444444455555555556666666666777777777 - 7<BR> -0123456789012345678901234567890123456789012345678901234567890123456789012345678 - 9<BR> -1995-01-23 20:58:51 MEZ 10402303260219950123195849740+40000500 - *<BR> -A B C D EF G H IJ K L M N O P Q R S T U V W -XY Z<CR><LF><BR> -A year<BR> -B month<BR> -C day<BR> -D hour<BR> -E : normally<BR> -A for DST to ST switch first hour<BR> -B for DST to ST switch second hour if not marked in H<BR> -F minute<BR> -G second<BR> -H timezone<BR> -I day of week<BR> -J week of year<BR> -K day of year<BR> -L month for next ST/DST changes<BR> -M day<BR> -N hour<BR> -O UTC year<BR> -P UTC month<BR> -Q UTC day<BR> -R UTC hour<BR> -S UTC minute<BR> -T modified julian day (MJD)<BR> -U DUT1<BR> -V direction and month if leap second<BR> -W signal delay (assumed/measured)<BR> -X sequence number for additional text line in Y<BR> -Y additional text<BR> -Z on time marker (* - assumed delay / # measured delay)<BR> - <CR>!<LF> ! is second change !<BR> -</FONT><BR> -This format is an ITU-R Recommendation (ITU-R TF583.4) and is now available from the primary -timing centres of the following countries: -Austria, Belgium, Germany, Italy, The Netherlands, Poland, Portugal, Romania, Spain, Sweden, -Switzerland, Turkey, United Kingdom. -Some examples are: -</P> - -<UL> - <LI>In Germany by Physikalisch-Technische Bundesanstalt (PTB)'s - timecode service. Phone number: +49 5 31 51 20 38. -</UL> - -<BLOCKQUOTE> - <P>For more detail, see <A HREF="http://www.ptb.de/english/org/4/43/433/disse.htm">http://www.ptb.de/english/org/4/43/433/disse.htm</A></P> -</BLOCKQUOTE> - -<UL> - <LI>In the UK by National Physical Laboratory (NPL)'s TRUETIME - service. Phone number: 0891 516 333 -</UL> - -<BLOCKQUOTE> - <P>For more detail, see <A HREF="http://www.npl.co.uk/npl/ctm/truetime.html">http://www.npl.co.uk/npl/ctm/truetime.html</A></P> -</BLOCKQUOTE> - -<UL> - <LI>In Italy by Istituto Elettrotecnico Nazionale "Galileo - Ferrais" (IEN)'s CTD service. Phone number: 166 11 46 - 15 -</UL> - -<BLOCKQUOTE> - <P>For more detail, see <A HREF="http://www.ien.it/tf/time/Pagina42.html">http://www.ien.it/tf/time/Pagina42.html</A></P> -</BLOCKQUOTE> - -<UL> - <LI>In Switzerland by Swiss Federal Office of Metrology 's timecode - service. Phone number: 031 323 32 25 -</UL> - -<BLOCKQUOTE> - <P>For more detail, see <A HREF="http://www.ofmet.admin.ch/de/labors/4/Zeitvert.html%20">http://www.ofmet.admin.ch/de/labors/4/Zeitvert.html - </A></P> -</BLOCKQUOTE> - -<UL> - <LI>In Sweden by SP Swedish National Testing and Research Institute - 's timecode service. Phone number: +46 33 415783 -</UL> - -<BLOCKQUOTE> - <P>For more detail, see <A HREF="http://www.sp.se/pne/ElectricalMetrology/ElMeteng/frameset.htm">http://www.sp.se/pne/ElectricalMetrology/ElMeteng/frameset.htm</A><BR> -<BR> - </P> -</BLOCKQUOTE> - -<H4>Fudge Factors</H4> - -<DL> - <DT><TT>time1 <I>time</I></TT> - <DD>Specifies the time offset calibration factor, in seconds - and fraction, with default 0.0. - <DT><TT>time2 <I>time</I></TT> - <DD>Not used by this driver. - <DT><TT>stratum <I>number</I></TT> - <DD>Specifies the driver stratum, in decimal from 0 to 15, with - default 0. - <DT><TT>refid <I>string</I></TT> - <DD>Specifies the driver reference identifier, an ASCII string - from one to four characters, with default PTB. - <DT><TT>flag1 0 | 1</TT> - <DD>Not used by this driver. - <DT><TT>flag2 0 | 1</TT> - <DD>Not used by this driver. - <DT><TT>flag3 0 | 1</TT> - <DD>Not used by this driver. - <DT><TT>flag4 0 | 1</TT> - <DD>Not used by this driver. -</DL> - -<P>Additional Information</P> - -<P>A keyword in the ntp.conf file permits a direct connection -to a serial port of source of time like IEN CTD signal. It is -sufficient to use the string DIRECT in place of the phone number.</P> - -<P>Example:</P> - -<P><FONT FACE="Courier New">server 127.127.23.1</FONT></P> - -<P><FONT FACE="Courier New">phone DIRECT</FONT></P> - -<P><A HREF="refclock.htm">Reference Clock Drivers</A> <HR ALIGN=LEFT></P> - -<ADDRESS>by Marco Mascarello (masca@tf.ien.it) for David L. Mills -(mills@udel.edu)</ADDRESS> - -</BODY> -</HTML> - |