1ea906c41SOllivier Robert<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> 29c2daa00SOllivier Robert 39c2daa00SOllivier Robert<html> 49c2daa00SOllivier Robert 59c2daa00SOllivier Robert <head> 69c2daa00SOllivier Robert <title>Ultralink Clock</title> 7ea906c41SOllivier Robert <meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> 8ea906c41SOllivier Robert <link <link href="scripts/style.css" type="text/css" rel="stylesheet"> </HEAD> <BODY> <H3> Ultralink Clock</H3> 99c2daa00SOllivier Robert <hr> 109c2daa00SOllivier Robert <h4>Synopsis</h4> 119c2daa00SOllivier Robert Address: 127.127.34.<i>u</i><br> 129c2daa00SOllivier Robert Reference ID: <tt>WWVB</tt><br> 139c2daa00SOllivier Robert Driver ID: <tt>ULINK</tt><br> 149c2daa00SOllivier Robert Serial Port: <tt>/dev/wwvb<i>u</i></tt>; 9600 bps, 8-bits, no parity<br> 159c2daa00SOllivier Robert <br> 169c2daa00SOllivier Robert Features: <tt>(none)</tt> 179c2daa00SOllivier Robert <h4>Description</h4> 18ea906c41SOllivier Robert <p>This driver supports the Ultralink Model 325 (replacement for Model 320) RS-232 powered WWVB receiver. PDF specs available on <a href="http://www.ulio.com/">http://www.ulio.com/</a>. This driver also supports the Model 320, 330,331,332 decoders in both polled or continous time code mode.<br> 19ea906c41SOllivier Robert Leap second and quality are supported.</p> 209c2daa00SOllivier Robert <p>Most of this code is originally from refclock_wwvb.c with thanks. Any mistakes are mine. Any improvements are welcome.</p> 219c2daa00SOllivier Robert <hr> 22ea906c41SOllivier Robert <pre> The Model 325 timecode format is: 23ea906c41SOllivier Robert 24ea906c41SOllivier Robert <cr><lf>RQ_1C00LYYYY+DDDUTCS_HH:MM:SSL+5 25ea906c41SOllivier Robert 26ea906c41SOllivier Robert where: 27ea906c41SOllivier Robert 28ea906c41SOllivier Robert R = Signal readability indicator, ranging from R1 to R5 29ea906c41SOllivier Robert Q R1 is unreadable, R5 is best reception 30ea906c41SOllivier Robert _ = Space 31ea906c41SOllivier Robert 1 = prev. received data bit, values: 0, 1 ,M or ? unknown 32ea906c41SOllivier Robert C = Signal reception from (C)olorado or (H)awaii 33ea906c41SOllivier Robert 0 = Hours since last WWVB time and flag code update, values 34ea906c41SOllivier Robert 0 00 to 99 (hopefully always 00) 35ea906c41SOllivier Robert L = HEX A5 if receiver is locked to WWVB, Space if not 36ea906c41SOllivier Robert YYYY = Year from 2000 to 2099 37ea906c41SOllivier Robert + = '+' if current year is a leap year, else ' ' 38ea906c41SOllivier Robert DDD = current day in the year from 1 to 365/366 39ea906c41SOllivier Robert UTC = timezone (always UTC) 40ea906c41SOllivier Robert S = Daylight savings indicator, (S)TD, (D)ST, (O) transition 41ea906c41SOllivier Robert into DST, (I) transition out of DST 42ea906c41SOllivier Robert _ = Space 43ea906c41SOllivier Robert HH = UTC hour 0 to 23 44ea906c41SOllivier Robert : = Time delimiter, ':' if synced, Space if not 45ea906c41SOllivier Robert MM = Minutes of current hour from 0 to 59 46ea906c41SOllivier Robert : = Time delimiter, ':' if synced, Space if not 47ea906c41SOllivier Robert SS = Seconds of current minute from 0 to 59 48ea906c41SOllivier Robert mm = 10's milliseconds of the current second from 00 to 99 49ea906c41SOllivier Robert L = Leap second pending at end of month, (I)nsert, (D)elete 50ea906c41SOllivier Robert or Space 51ea906c41SOllivier Robert +5 = UT1 correction, +/- .1 sec increments 52ea906c41SOllivier Robert </pre> 53ea906c41SOllivier Robert <p>Note that Model 325 reports a very similar output like Model 33X series. The driver for this clock is similar to Model 33X behavior. On a unmodified new ULM325 clock, the polling flag (flag1 =1) needs to be set.</p> 54ea906c41SOllivier Robert <hr> 55ea906c41SOllivier Robert <pre> The Model 320 timecode format is: 569c2daa00SOllivier Robert 579c2daa00SOllivier Robert <cr><lf>SQRYYYYDDD+HH:MM:SS.mmLT<cr> 589c2daa00SOllivier Robert 599c2daa00SOllivier Robert where: 609c2daa00SOllivier Robert 619c2daa00SOllivier Robert S = 'S' -- sync'd in last hour, '0'-'9' - hours x 10 since last update, else '?' 629c2daa00SOllivier Robert Q = Number of correlating time-frames, from 0 to 5 639c2daa00SOllivier Robert R = 'R' -- reception in progress, 'N' -- Noisy reception, ' ' -- standby mode 649c2daa00SOllivier Robert YYYY = year from 1990 to 2089 659c2daa00SOllivier Robert DDD = current day from 1 to 366 669c2daa00SOllivier Robert + = '+' if current year is a leap year, else ' ' 679c2daa00SOllivier Robert HH = UTC hour 0 to 23 689c2daa00SOllivier Robert MM = Minutes of current hour from 0 to 59 699c2daa00SOllivier Robert SS = Seconds of current minute from 0 to 59 709c2daa00SOllivier Robert mm = 10's milliseconds of the current second from 00 to 99 719c2daa00SOllivier Robert L = Leap second pending at end of month -- 'I' = inset, 'D'=delete 729c2daa00SOllivier Robert T = DST <-> STD transition indicators 739c2daa00SOllivier Robert </pre> 749c2daa00SOllivier Robert <p>Note that this driver does not do anything with the T flag.</p> 759c2daa00SOllivier Robert <p>The M320 also has a 'U' command which returns UT1 correction information. It is not used in this driver.</p> 769c2daa00SOllivier Robert <hr> 77ea906c41SOllivier Robert <pre> The Model 33x timecode format is: 789c2daa00SOllivier Robert 799c2daa00SOllivier Robert S9+D 00 YYYY+DDDUTCS HH:MM:SSl+5 809c2daa00SOllivier Robert 819c2daa00SOllivier Robert Where: 829c2daa00SOllivier Robert 839c2daa00SOllivier Robert S = sync indicator S insync N not in sync 849c2daa00SOllivier Robert the sync flag is WWVB decoder sync 859c2daa00SOllivier Robert nothing to do with time being correct 869c2daa00SOllivier Robert 9+ = signal level 0 thru 9+ If over 9 indicated as 9+ 879c2daa00SOllivier Robert D = data bit ( fun to watch but useless ;-) 889c2daa00SOllivier Robert space 899c2daa00SOllivier Robert 00 = hours since last GOOD WWVB frame sync 909c2daa00SOllivier Robert space 919c2daa00SOllivier Robert YYYY = current year 929c2daa00SOllivier Robert + = leap year indicator 939c2daa00SOllivier Robert DDD = day of year 949c2daa00SOllivier Robert UTC = timezone (always UTC) 959c2daa00SOllivier Robert S = daylight savings indicator 969c2daa00SOllivier Robert space 979c2daa00SOllivier Robert HH = hours 989c2daa00SOllivier Robert : = This is the REAL in sync indicator (: = insync) 999c2daa00SOllivier Robert MM = minutes 1009c2daa00SOllivier Robert : = : = in sync ? = NOT in sync 1019c2daa00SOllivier Robert SS = seconds 1029c2daa00SOllivier Robert L = leap second flag 1039c2daa00SOllivier Robert +5 = UT1 correction (sign + digit )) 1049c2daa00SOllivier Robert </pre> 1059c2daa00SOllivier Robert <p>This driver ignores UT1 correction,DST indicator,Leap year and signal level.</p> 1069c2daa00SOllivier Robert <hr> 1079c2daa00SOllivier Robert <h4>Fudge factors</h4> 1089c2daa00SOllivier Robert <p>flag1 polling enable (1=poll 0=no poll)</p> 1099c2daa00SOllivier Robert <hr> 110ea906c41SOllivier Robert <address><a href="mailto:frank.migge@oracle.com">mail</a></address> 111ea906c41SOllivier Robert <!-- hhmts start -->Last modified: Mon Mar 8 10:12:08 PST 2004<!-- hhmts end --> 1129c2daa00SOllivier Robert <hr> 113ea906c41SOllivier Robert <script type="text/javascript" language="javascript" src="Ultralink Clock_files/footer.txt"></script> 114ea906c41SOllivier Robert </BODY> 115ea906c41SOllivier Robert </head> 1169c2daa00SOllivier Robert 1179c2daa00SOllivier Robert</html>