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diff --git a/contrib/ntp/html/driver29.htm b/contrib/ntp/html/driver29.htm new file mode 100644 index 0000000..3cddfc2 --- /dev/null +++ b/contrib/ntp/html/driver29.htm @@ -0,0 +1,1254 @@ +<!doctype html public "-//w3c//dtd html 4.0 transitional//en"> +<html> +<head> + <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> + <title>Trimble Palisade Receiver</title> +</head> +<body text="#000000" bgcolor="#FFFFFF" link="#0000FF" vlink="#800080" alink="#FF0000"> + +<h1> +<font size=+2>Trimble Palisade Receiver</font> +<hr></h1> + +<h2> +<img SRC="pic/driver29.gif" NOSAVE height=100 width=420></h2> + +<h2> +<font size=+1>Synopsis</font></h2> + +<table> +<tr> +<td> +<div align=right><tt>Address: </tt></div> +</td> + +<td><b>127.127.29.<i>u</i></b></td> +</tr> + +<tr> +<td> +<div align=right><tt>Reference ID:</tt></div> +</td> + +<td><a NAME="REFID"></a><b>GPS</b></td> +</tr> + +<tr> +<td> +<div align=right><tt>Driver ID:</tt></div> +</td> + +<td><b>GPS_PALISADE</b></td> +</tr> + +<tr> +<td> +<div align=right><tt>Serial Port:</tt></div> +</td> + +<td><b>/dev/palisade<i>u</i></b></td> +</tr> + +<tr> +<td> +<div align=right><tt><font size=+1>Serial I/O:</font></tt></div> +</td> + +<td><b>9600 baud, 8-bits, 1-stop, odd parity</b></td> +</tr> +</table> + +<h2> +<font size=+1>Description</font></h2> +The <b>refclock_palisade</b> driver supports <a href="http://www.trimble.com/products/ntp">Trimble +Navigation's Palisade Smart Antenna GPS receiver</a>. +<br>Additional software and information about the Palisade GPS is available +from: <a href="http://www.trimble.com/oem/ntp">http://www.trimble.com/oem/ntp</a>. +<br>Latest NTP driver source, executables and documentation is maintained +at: +<a href="ftp://ftp.trimble.com/pub/ntp">ftp://ftp.trimble.com/pub/ntp</a> +<p>This documentation describes version 7.12 of the GPS Firmware and version +2.46 (July 15, 1999) and later, of the driver source. +<br> +<h2> +<font size=+1>Operating System Compatibility</font></h2> +The Palisade driver has been tested on the following software and hardware +platforms: +<br> +<center><table> +<tr> +<td VALIGN=CENTER WIDTH="23%">Platform</td> + +<td VALIGN=CENTER>Operating System</td> + +<td>NTP Sources</td> + +<td>Accuracy</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="23%">i386 (PC) </td> + +<td VALIGN=CENTER>Linux</td> + +<td>NTP Distribution</td> + +<td>10 us</td> +</tr> + +<tr> +<td>i386 (PC) </td> + +<td>Windows NT</td> + +<td><a href="ftp://ftp.trimble.com/pub/ntp">ftp://ftp.trimble.com/pub/ntp</a></td> + +<td>1 ms</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="23%">SUN</td> + +<td VALIGN=CENTER>Solaris 2.x</td> + +<td>NTP Distribution</td> + +<td>50 us</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="23%">Hewlett-Packard</td> + +<td VALIGN=CENTER>HPUX 9, 10, 11</td> + +<td><a href="http://us-support.external.hp.com">http://us-support.external.hp.com</a></td> + +<td>50 us</td> +</tr> + +<tr> +<td>Various</td> + +<td>Free BSD</td> + +<td>NTP Distribution</td> + +<td>20 us</td> +</tr> +</table></center> + +<h2> +<font size=+1>GPS Receiver</font></h2> +The Palisade GPS receiver is an 8-channel smart antenna, housing the GPS +receiver, antenna and interface in a single unit, and is designed for rooftop +deployment in static timing applications. +<p>Palisade generates a PPS synchronized to UTC within +/- 100 ns. +The Palisade's external event input with 40 nanosecond resolution is utilized +by the Palisade NTP driver for asynchronous precision time transfer. +<p>No user initialization of the receiver is required. This driver is compatible +with the following versions of Palisade: +<br> +<center><table> +<tr> +<td VALIGN=CENTER> +<center>Version</center> +</td> + +<td VALIGN=TOP> +<center>Event Input</center> +</td> + +<td VALIGN=CENTER> +<center>Trimble Part Number</center> +</td> +</tr> + +<tr> +<td VALIGN=CENTER> +<center>7.02</center> +</td> + +<td VALIGN=TOP> +<center>No</center> +</td> + +<td VALIGN=CENTER> +<center>26664-00</center> +</td> +</tr> + +<tr> +<td ALIGN=CENTER VALIGN=CENTER> +<center>7.02E</center> +</td> + +<td VALIGN=TOP> +<center>Yes</center> +</td> + +<td VALIGN=CENTER> +<center>26664-10</center> +</td> +</tr> + +<tr> +<td VALIGN=CENTER> +<center>7.12</center> +</td> + +<td VALIGN=TOP> +<center>Yes</center> +</td> + +<td VALIGN=CENTER> +<center>38158-00</center> +</td> +</tr> +</table></center> + +<dl> +<dl>Note: When using Palisade 26664-00, you must set fudge flag2 to 1 in +<b>ntp.conf</b>. +See <a href="#Configuration">configuration</a>.</dl> + +<dl> +<h3> +<font size=+1>GPS <a NAME="Installation"></a>Installation</font></h3> +A location with unobstructed view of the horizon is recommended. Palisade +is designed to be securely mounted atop standard 3/4 inch threaded pipe. +<p>The 12 conductor (dia. 10 mm) power and I/O cable must be routed +from the rooftop site to the NTP server and properly strain relieved. +<h3> +<font size=+1>GPS <a NAME="Connection"></a>Connection</font></h3> +The Palisade is equipped with dual (A & B) RS-422 serial interfaces +and a differential TTL PPS output. An RS-232 / RS-422 Interface Module +is supplied with the Palisade NTP Synchronization Kit. Palisade <a href="#PortA">port +A</a> must be connected to the NTP host server. Maximum antenna cable length +is 500 meters. See the <a href="#Pinouts">pinouts</a> table for detailed +connection Information. +<p>Palisade's <a href="#PortB">port B</a> provides a TSIP (Trimble Standard +Interface Protocol) interface for diagnostics, configuration, and monitoring. +Port B and the PPS output are not currently used by the Palisade NTP reference +clock driver. +<br> </dl> +</dl> + +<h2> +<font size=+1>O/S Serial Port Configuration</font></h2> +The driver attempts to open the device <b><tt><a href="#REFID">/dev/palisade<i>u</i></a></tt></b> +where +<b><i>u</i></b> is the NTP refclock unit number as defined by the +LSB of the refclock address. Valid refclock unit numbers are 0 - +3. +<p>The user is expected to provide a symbolic link to an available serial +port device. This is typically performed by a command such as: +<blockquote><tt>ln -s /dev/ttyS0 /dev/palisade0</tt></blockquote> +Windows NT does not support symbolic links to device files. COM<b>x</b>: +is used by the driver, based on the refclock unit number, where unit 1 +corresponds to COM<b>1</b>: and unit 3 corresponds to COM3: +<br> +<h2> +<a NAME="Configuration"></a><font size=+1>NTP Configuration</font></h2> +Palisade NTP configuration file <b><tt>"ntp.conf"</tt></b> with event polling: +<br><tt>#------------------------------------------------------------------------------</tt> +<br><tt># The Primary reference</tt> +<br><tt>server 127.127.29.0 # Trimble Palisade GPS Refclock Unit #0</tt> +<br><tt>peer terrapin.csc.ncsu.edu # internet server</tt> +<br><tt># Drift file for expedient re-synchronization after downtime or +reboot.</tt> +<br><tt>driftfile /etc/ntp.drift</tt> +<br><tt>#------------------------------------------------------------------------------</tt> +<p>Configuration without event polling: +<br><tt>#------------------------------------------------------------------------------</tt> +<br><tt># The Primary reference</tt> +<br><tt>server 127.127.29.0 # Trimble Palisade GPS (Stratum 1).</tt> +<br><tt># Set packet delay</tt> +<br><tt><a href="#time1">fudge 127.127.29.0 time1 0.020</a></tt> +<br><tt># and set flag2 to turn off event polling.</tt> +<br><tt><a href="#flag2">fudge 127.127.29.0 flag2 1</a></tt> +<br><tt>#------------------------------------------------------------------------------</tt> +<br> +<h2> +<a NAME="TimeTransfer"></a><font size=+1>Time Transfer and Polling</font></h2> +Time transfer to the NTP host is performed via the Palisade's comprehensive +time packet output. The time packets are output once per second, and whenever +an event timestamp is requested. +<p>The driver requests an event time stamp at the end of each polling interval, +by pulsing the RTS (request to send) line on the serial port. The Palisade +GPS responds with a time stamped event packet. +<p>Time stamps are reported by the Palisade with respect to UTC time. The +GPS receiver must download UTC offset information from GPS satellites. +After an initial UTC download, the receiver will always start with correct +UTC offset information. +<br> +<h2> +<font size=+1>Run NTP in Debugging Mode</font></h2> +The following procedure is recommended for installing and testing a Palisade +NTP driver: +<ol> +<li> +Perform initial checkout procedures. Place the GPS receiver outdoors; with +clear view of the sky. Allow the receiver to obtain an UTC almanac.</li> + +<li> +Verify presence of timing packets by observing the 1 Hz (PPS) led on the +interface module. It should flash once per second.</li> + +<li> +Connect Palisade's port A to the NTP host.</li> + +<li> +Configure NTP and the serial I/O port on the host system.</li> + +<li> +Initially use <tt><a href="#flag2">fudge flag2</a></tt> in <b><a href="#Configuration">ntp.conf</a>,</b> +to disable event polling (see configuration).</li> + +<li> +Run NTP in debug mode (-d -d), to observe Palisade_receive events.</li> + +<li> +The driver reports the <a href="#TrackingStatus">tracking status of the +receiver</a>. Make sure it is tracking several satellites.</li> + +<li> +Remove fudge flag2 and restart <b>ntpd</b> in debug mode to observe palisade_receive +events.</li> + +<li> +If event polling fails, verify the <a href="#Pinouts">connections</a> and +that the host hardware supports RTS control.</li> +</ol> + +<h2> +<font size=+1>Event Logging</font></h2> +System and Event log entries are generated by NTP to report significant +system events. Administrators should monitor the system log to observe +NTP error messages. Log entries generated by the Palisade NTP reference +clock driver will be of the form: +<blockquote> +<pre>Nov 14 16:16:21 terrapin ntpd[1127]: Palisade #0: <i>message</i></pre> +</blockquote> + +<h2> +<font size=+1>Fudge Factors</font></h2> + +<dl> +<dt> +<a NAME="time1"></a><tt><font size=+1><a href="#Configuration">time1 <i>time</i></a></font></tt></dt> + +<dd> +Specifies the time offset calibration factor, in seconds and fraction, +with default 0.0. If event capture is not used, time1 should be set to +20 milliseconds to correct serial line and operating system delays incurred +in capturing time stamps from the synchronous packets.</dd> + +<dt> +<tt><font size=+1>stratum <i>number</i></font></tt></dt> + +<dd> +Specifies the driver stratum, in decimal from 0 to 15, with default 0.</dd> + +<dt> +<tt><font size=+1><a href="#REFID">refid <i>string</i></a></font></tt></dt> + +<dd> +Specifies the driver reference identifier, <b>GPS</b>.</dd> + +<dt> +<a NAME="flag2"></a><tt><font size=+1><a href="#Configuration">flag2 0 +| 1</a></font></tt></dt> + +<dd> +When set to 1, driver does not use hardware event capture. The synchronous +packet output by the receiver at the beginning of each second is time stamped +by the driver. If triggering the event pulse fails, the driver falls back +to this mode automatically.</dd> +</dl> + +<h2> +<font size=+1>DEFINEs</font></h2> +The following constants are defined in the driver source code. These defines +may be modified to improve performance or adapt to new operating systems. +<br> +<center><table BORDER > +<tr> +<td><b>Label</b></td> + +<td>Definition</td> + +<td>Default Value</td> +</tr> + +<tr> +<td>DEVICE</td> + +<td>The serial port device to be used by the driver</td> + +<td>/dev/palisade<b><i>u</i></b></td> +</tr> + +<tr> +<td>PRECISION</td> + +<td>Accuracy of time transfer</td> + +<td>1 microsecond</td> +</tr> + +<tr> +<td>CURRENT_UTC</td> + +<td>Valid GPS - UTC offset</td> + +<td>13</td> +</tr> + +<tr> +<td>SPEED232</td> + +<td>Host RS-232 baud rate</td> + +<td>B9600</td> +</tr> + +<tr> +<td>TRMB_MINPOLL </td> + +<td>Minimum polling interval</td> + +<td>5 (32 seconds)</td> +</tr> + +<tr> +<td>TRMB_MAXPOLL</td> + +<td>Maximum interval between polls</td> + +<td>7 (128 seconds)</td> +</tr> +</table></center> + +<h2> +<a NAME="DataFormat"></a><font size=+1>Data Format</font></h2> +Palisade port A can output two synchronous time packets. The NTP driver +can use either packet for synchronization. Packets are formatted as follows: +<h3> +<b><font size=+0>Packet 8F-AD (Primary NTP Packet)</font></b></h3> + +<center><table> +<tr> +<td>Byte</td> + +<td>Item</td> + +<td>Type</td> + +<td>Meaning</td> +</tr> + +<tr> +<td>0</td> + +<td>Sub-Packet ID</td> + +<td>BYTE</td> + +<td>Subcode 0xAD</td> +</tr> + +<tr> +<td>1 - 2</td> + +<td>Event Count</td> + +<td>INTEGER</td> + +<td>External event count recorded (0 = PPS)</td> +</tr> + +<tr> +<td>3 - 10</td> + +<td>Fractional Second</td> + +<td>DOUBLE</td> + +<td>Time elapsed in current second (s)</td> +</tr> + +<tr> +<td>11</td> + +<td>Hour</td> + +<td>BYTE</td> + +<td>Hour (0 - 23)</td> +</tr> + +<tr> +<td>12</td> + +<td>Minute</td> + +<td>BYTE</td> + +<td>Minute (0 - 59)</td> +</tr> + +<tr> +<td>13</td> + +<td>Second</td> + +<td>BYTE</td> + +<td>Second (0 - 59; 60 = leap)</td> +</tr> + +<tr> +<td>14</td> + +<td>Day</td> + +<td>BYTE</td> + +<td>Date (1 - 31)</td> +</tr> + +<tr> +<td>15</td> + +<td>Month</td> + +<td>BYTE</td> + +<td>Month (1 - 12)</td> +</tr> + +<tr> +<td>16 - 17</td> + +<td>Year</td> + +<td>INTEGER</td> + +<td>Year (4 digit)</td> +</tr> + +<tr> +<td>18</td> + +<td>Receiver Status</td> + +<td>BYTE</td> + +<td>Tracking Status</td> +</tr> + +<tr> +<td>19</td> + +<td>UTC Flags</td> + +<td>BYTE</td> + +<td>Leap Second Flags</td> +</tr> + +<tr> +<td>20</td> + +<td>Reserved</td> + +<td>BYTE</td> + +<td>Contains 0xFF</td> +</tr> + +<tr> +<td>21</td> + +<td>Reserved</td> + +<td>BYTE</td> + +<td>Contains 0xFF</td> +</tr> +</table></center> + +<blockquote> +<h4> +Leap Second Flag Definition:</h4> +Bit 0: (1) UTC Time is available +<br>Bits 1 - 3: Undefined +<br>Bit 4: (1) Leap Scheduled: Leap second pending asserted by GPS +control segment. +<br>Bit 5: (1) Leap Pending: set 24 hours before, until beginning +of leap second. +<br>Bit 6: (1) GPS Leap Warning: 6 hours before until 6 hours after +leap event +<br>Bit 7: (1) Leap In Progress. Only set during the leap second. +<h4> +<a NAME="TrackingStatus"></a>Tracking Status Flag Definitions:</h4> +</blockquote> + +<center><table BORDER=0 CELLSPACING=0 WIDTH="712" > +<tr> +<td VALIGN=CENTER WIDTH="5%">Code</td> + +<td VALIGN=CENTER WIDTH="59%">Meaning</td> + +<td>Accuracy</td> + +<td>Receiver Mode</td> +</tr> + +<tr> +<td>0</td> + +<td>Receiver is Navigating</td> + +<td>+/- 1 us</td> + +<td>Self Survey</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="5%">1</td> + +<td VALIGN=CENTER WIDTH="59%">Static 1 Sat. Timing Mode </td> + +<td>+/- 1 us</td> + +<td>1-D Timing</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="5%">2</td> + +<td VALIGN=CENTER WIDTH="59%">Approximate Time</td> + +<td>20 - 50 ms</td> + +<td>Acquisition</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="5%">3</td> + +<td VALIGN=CENTER WIDTH="59%">Startup</td> + +<td>N/A</td> + +<td>Initialization</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="5%">4</td> + +<td VALIGN=CENTER WIDTH="59%">Startup</td> + +<td>N/A</td> + +<td>Initialization</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="5%">5</td> + +<td VALIGN=CENTER WIDTH="59%">Dilution of Position too High </td> + +<td>5 ppm</td> + +<td>Self Survey</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="5%">6</td> + +<td VALIGN=CENTER WIDTH="59%">Static 1 Sat. Timing: Sat. not usable</td> + +<td>5 ppm</td> + +<td>1-D Timing</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="5%">7</td> + +<td VALIGN=CENTER WIDTH="59%">No Satellites Usable</td> + +<td>N/A</td> + +<td>Self Survey</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="5%">8</td> + +<td VALIGN=CENTER WIDTH="59%">Only 1 Satellite Usable</td> + +<td>20 - 50 ms</td> + +<td>Self Survey</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="5%">9</td> + +<td VALIGN=CENTER WIDTH="59%">Only 2 Satellite Usable</td> + +<td>20 - 50 ms</td> + +<td>Self Survey</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="5%">10</td> + +<td VALIGN=CENTER WIDTH="59%">Only 3 Satellites Usable</td> + +<td>20 - 50 ms</td> + +<td>Self Survey</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="5%">11</td> + +<td VALIGN=CENTER WIDTH="59%">Invalid Solution</td> + +<td>N/A</td> + +<td>Error</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="5%">12</td> + +<td VALIGN=CENTER WIDTH="59%">Differential Corrections </td> + +<td>N/A</td> + +<td>N/A</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="5%">13</td> + +<td VALIGN=CENTER WIDTH="59%">Overdetermined Fixes</td> + +<td>+/- 100 ns</td> + +<td>Timing Steady State</td> +</tr> +</table></center> + +<h3> +<b><font size=+0>Packet 8F-0B (Comprehensive Timing Packet)</font></b></h3> + +<center><table BORDER=0 CELLSPACING=0 > +<tr> +<td VALIGN=CENTER WIDTH="9%">Byte</td> + +<td VALIGN=CENTER WIDTH="27%">Item</td> + +<td VALIGN=CENTER WIDTH="16%">Type</td> + +<td VALIGN=CENTER WIDTH="48%">Meaning</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="9%">0</td> + +<td VALIGN=CENTER WIDTH="27%">Sub-Packet ID</td> + +<td VALIGN=CENTER WIDTH="16%">BYTE</td> + +<td VALIGN=CENTER WIDTH="48%">Subcode 0x0B</td> +</tr> + +<tr> +<td VALIGN=TOP WIDTH="9%">1 - 2</td> + +<td VALIGN=TOP WIDTH="27%">Event Count</td> + +<td VALIGN=TOP WIDTH="16%">INTEGER</td> + +<td VALIGN=TOP WIDTH="48%">External event count recorded (0 = PPS)</td> +</tr> + +<tr> +<td VALIGN=TOP WIDTH="9%">3 - 10</td> + +<td VALIGN=TOP WIDTH="27%">UTC / GPS TOW</td> + +<td VALIGN=TOP WIDTH="16%">DOUBLE</td> + +<td VALIGN=TOP WIDTH="48%">UTC / GPS time of week (seconds)</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="9%">11</td> + +<td VALIGN=CENTER WIDTH="27%">Date</td> + +<td VALIGN=CENTER WIDTH="16%">BYTE</td> + +<td VALIGN=CENTER WIDTH="48%">Day of Month</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="9%">12</td> + +<td VALIGN=CENTER WIDTH="27%">Month</td> + +<td VALIGN=CENTER WIDTH="16%">BYTE</td> + +<td VALIGN=CENTER WIDTH="48%">Month of Event</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="9%">13 - 14</td> + +<td VALIGN=CENTER WIDTH="27%">Year</td> + +<td VALIGN=CENTER WIDTH="16%">INT</td> + +<td VALIGN=CENTER WIDTH="48%">Year of event</td> +</tr> + +<tr> +<td VALIGN=TOP WIDTH="9%">15</td> + +<td VALIGN=TOP WIDTH="27%">Receiver Mode</td> + +<td VALIGN=TOP WIDTH="16%">BYTE</td> + +<td VALIGN=TOP WIDTH="48%">Receiver operating dimensions: +<br>0: Horizontal (2D) +<br>1: Full Position (3D) +<br>2: Single Satellite (0D) +<br>3: Automatic (2D / 3D) +<br>4: DGPS reference +<br>5: Clock hold (2D) +<br>6: Over determined Clock</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="9%">15 - 17</td> + +<td VALIGN=CENTER WIDTH="27%">UTC Offset</td> + +<td VALIGN=CENTER WIDTH="16%">INTEGER</td> + +<td VALIGN=CENTER WIDTH="48%">UTC Offset value (seconds)</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="9%">18 - 25</td> + +<td VALIGN=CENTER WIDTH="27%">Oscillator Bias</td> + +<td VALIGN=CENTER WIDTH="16%">DOUBLE</td> + +<td VALIGN=CENTER WIDTH="48%">Oscillator BIAS (meters)</td> +</tr> + +<tr> +<td VALIGN=TOP WIDTH="9%">26 - 33</td> + +<td VALIGN=TOP WIDTH="27%">Oscillator Drift Rate</td> + +<td VALIGN=TOP WIDTH="16%">DOUBLE</td> + +<td VALIGN=TOP WIDTH="48%">Oscillator Drift (meters / second)</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="9%">34 - 37</td> + +<td VALIGN=CENTER WIDTH="27%">Bias Uncertainty</td> + +<td VALIGN=CENTER WIDTH="16%">SINGLE</td> + +<td VALIGN=CENTER WIDTH="48%">Oscillator bias uncertainty (meters)</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="9%">38 - 41</td> + +<td VALIGN=CENTER WIDTH="27%">Drift Uncertainty</td> + +<td VALIGN=CENTER WIDTH="16%">SINGLE</td> + +<td VALIGN=CENTER WIDTH="48%">Oscillator bias rate uncertainty (m / sec)</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="9%">42 - 49</td> + +<td VALIGN=CENTER WIDTH="27%">Latitude</td> + +<td VALIGN=CENTER WIDTH="16%">DOUBLE</td> + +<td VALIGN=CENTER WIDTH="48%">Latitude in radians</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="9%">50 - 57</td> + +<td VALIGN=CENTER WIDTH="27%">Longitude</td> + +<td VALIGN=CENTER WIDTH="16%">DOUBLE</td> + +<td VALIGN=CENTER WIDTH="48%">Longitude in radians</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="9%">58 - 65</td> + +<td VALIGN=CENTER WIDTH="27%">Altitude</td> + +<td VALIGN=CENTER WIDTH="16%">DOUBLE</td> + +<td VALIGN=CENTER WIDTH="48%">Altitude above mean sea level, in meters</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="9%">66 - 73</td> + +<td VALIGN=CENTER WIDTH="27%">Satellite ID</td> + +<td VALIGN=CENTER WIDTH="16%">BYTE</td> + +<td VALIGN=CENTER WIDTH="48%">SV Id No. of tracked satellites</td> +</tr> +</table></center> + +<h2> +<a NAME="Pinouts"></a><font size=+1>Pinouts</font></h2> +<a href="#Connection">The following connections are required when connecting +Palisade with a host:</a> +<br> +<br> +<center><table> +<tr> +<td><u>Description</u></td> + +<td><b>Host</b></td> + +<td></td> + +<td></td> + +<td><b>Palisade </b></td> + +<td></td> + +<td></td> +</tr> + +<tr> +<td><a NAME="PortA"></a><b>Port A</b></td> + +<td><u>DB-9</u></td> + +<td><u>DB-25</u></td> + +<td></td> + +<td><u>RS-232</u></td> + +<td><u>RS-422</u></td> + +<td><u>Palisade Pin</u></td> +</tr> + +<tr> +<td>Receive Data </td> + +<td>2</td> + +<td>3</td> + +<td><--></td> + +<td>Green</td> + +<td>Green / Blue</td> + +<td>8 (T-) & 10 (T+)</td> +</tr> + +<tr> +<td>Request to Send</td> + +<td>7</td> + +<td>4</td> + +<td><--></td> + +<td>Gray</td> + +<td>Gray / White</td> + +<td>6 (R-) & 7 (R+)</td> +</tr> + +<tr> +<td>Signal Ground</td> + +<td>5</td> + +<td>7</td> + +<td><--></td> + +<td>Black</td> + +<td>Black</td> + +<td>9 (GND)</td> +</tr> + +<tr> +<td></td> + +<td></td> + +<td></td> + +<td></td> + +<td></td> + +<td></td> + +<td></td> +</tr> + +<tr> +<td><a NAME="PortB"></a><b>Port B</b></td> + +<td></td> + +<td></td> + +<td></td> + +<td></td> + +<td></td> + +<td></td> +</tr> + +<tr> +<td>Receive Data </td> + +<td>2</td> + +<td>3</td> + +<td><--></td> + +<td>Brown</td> + +<td>Brown / Yellow</td> + +<td>4 (T-) & 5 (T+)</td> +</tr> + +<tr> +<td>Transmit Data</td> + +<td>3</td> + +<td>2</td> + +<td><--></td> + +<td>Violet</td> + +<td>Orange/ Violet</td> + +<td>2 (R-) & 3 (R+)</td> +</tr> + +<tr> +<td>Signal Ground</td> + +<td>5</td> + +<td>7</td> + +<td><--></td> + +<td>Black</td> + +<td>Black</td> + +<td>9 (GND)</td> +</tr> +</table></center> + +<blockquote>Note: If driving the RS-422 inputs on the Palisade single ended, +i.e. using the Green and Gray connections only, does not work on all serial +ports. Use of the Palisade NTP Synchronization Interface Module is recommended.</blockquote> + +<blockquote>The 12 pin connector pinout definition: +<br>Face the round 12 pin connector at the end of the cable, with the notch +turned upwards. +<br>Pin 1 is to the left of the notch. Pins 2 - 8 wrap around the bottom, +counterclockwise to pin 9 on the right of the notch. Pin 10 is just below +the notch. Pins 10 (top), 11 (bottom left) and 12 (bottom right) form a +triangle in the center of the connector.</blockquote> + +<blockquote><a NAME="SIM"></a>Pinouts for the Palisade NTP host adapter +(Trimble PN 37070) DB-25 M connector are as follows:</blockquote> + +<center><table BORDER=0 CELLSPACING=0 WIDTH="682" > +<tr> +<td VALIGN=CENTER WIDTH="12%">DB-25M</td> + +<td VALIGN=CENTER WIDTH="31%">Conductor </td> + +<td VALIGN=CENTER WIDTH="16%">Palisade</td> + +<td VALIGN=CENTER WIDTH="41%">Description</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="12%">1 </td> + +<td VALIGN=CENTER WIDTH="31%">Red</td> + +<td VALIGN=CENTER WIDTH="16%">1</td> + +<td VALIGN=CENTER WIDTH="41%">Power</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="12%">7 </td> + +<td VALIGN=CENTER WIDTH="31%">Black</td> + +<td VALIGN=CENTER WIDTH="16%">9</td> + +<td VALIGN=CENTER WIDTH="41%">Ground</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="12%">9</td> + +<td VALIGN=CENTER WIDTH="31%">Black/White</td> + +<td VALIGN=CENTER WIDTH="16%">12</td> + +<td VALIGN=CENTER WIDTH="41%">PPS -</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="12%">10 </td> + +<td VALIGN=CENTER WIDTH="31%">Green</td> + +<td VALIGN=CENTER WIDTH="16%">8</td> + +<td VALIGN=CENTER WIDTH="41%">Transmit Port A (T-)</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="12%">11 </td> + +<td VALIGN=CENTER WIDTH="31%">Brown</td> + +<td VALIGN=CENTER WIDTH="16%">4</td> + +<td VALIGN=CENTER WIDTH="41%">Transmit Port B (T-)</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="12%">12 </td> + +<td VALIGN=CENTER WIDTH="31%">Gray</td> + +<td VALIGN=CENTER WIDTH="16%">7</td> + +<td VALIGN=CENTER WIDTH="41%">Receive Port A (R+)</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="12%">13</td> + +<td VALIGN=CENTER WIDTH="31%">Orange</td> + +<td VALIGN=CENTER WIDTH="16%">3</td> + +<td VALIGN=CENTER WIDTH="41%">Receive Port B (R+)</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="12%">21</td> + +<td VALIGN=CENTER WIDTH="31%">Orange/White</td> + +<td VALIGN=CENTER WIDTH="16%">11</td> + +<td VALIGN=CENTER WIDTH="41%">PPS +</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="12%">22</td> + +<td VALIGN=CENTER WIDTH="31%">Blue</td> + +<td VALIGN=CENTER WIDTH="16%">10</td> + +<td VALIGN=CENTER WIDTH="41%">Transmit Port A (T+)</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="12%">23</td> + +<td VALIGN=CENTER WIDTH="31%">Yellow</td> + +<td VALIGN=CENTER WIDTH="16%">5</td> + +<td VALIGN=CENTER WIDTH="41%">Transmit Port B (T+)</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="12%">24</td> + +<td VALIGN=CENTER WIDTH="31%">White</td> + +<td VALIGN=CENTER WIDTH="16%">6</td> + +<td VALIGN=CENTER WIDTH="41%">Receive Port A (R-)</td> +</tr> + +<tr> +<td VALIGN=CENTER WIDTH="12%">25</td> + +<td VALIGN=CENTER WIDTH="31%">Violet</td> + +<td VALIGN=CENTER WIDTH="16%">2</td> + +<td VALIGN=CENTER WIDTH="41%">Receive Port B (R-)</td> +</tr> +</table></center> + +<p> +<hr> +<p>Questions or Comments: +<br><a href="mailto:sven_dietrich@trimble.com">Sven Dietrich</a> +<br><a href="http://www.trimble.com/">Trimble Navigation Ltd.</a> +<p>(last updated July 29, 1999) +<br> +</body> +</html> |
