User manual NORTHSTAR 2505 INSTALL GUIDE

[. . . ] 2505 Beacon/WAAS Position Sensor Installation Manual Revision A Part Number GM2505 Northstar Technologies 30 Sudbury Road Acton, Massachusetts 01720 800/628-4487 978/897-6600 www. northstarcmc. com Limited warranty policy Northstar Technologies, Inc. warrants the Northstar 2505 to be free from defects in materials and workmanship for a period of two (2) years. This warranty applies to the original purchaser and to any subsequent owner during the warranty period, which begins on the date of shipment of the unit, F. O. B. Systems may not be returned to Northstar without a Returned Materials Authorization (RMA) number. [. . . ] Unauthorized tampering will automatically void the warranty. Choosing the 2505's mounting location The 2505 is housed in a rugged aluminum enclosure with a mounting flange, gaskets, and watertight connectors. The 2505 itself is water-resistant, but not waterproof, so mount it where water won't contact it directly or enter it by following power or antenna cables. Tie-wrap all cables to keep them secure, and if cables are shortened, lengthened, or re-terminated, seal all wiring splices. Mounting the 2505 You can mount the 2505 horizontally or vertically, using the appropriate mounting holes; see Figure 1 on page 14. Keyhole slots at the rear will help if you're installing the 2505 where access is limited and it may be difficult to start the mounting screws at the obstructed end. Securely tighten all mounting screws to avoid vibration-related problems. 2505 INSTALLATION MANUAL, Revision A Page 13 SECTION TWO Installing and interfacing the 2505 Figure 1: 2505 case and mounting dimensions Connecting the 2505 to power WARNING! Be sure to ground the equipment to prevent electrical shock and mutual interference. Be sure that the power supply's voltage is compatible with the 2505's voltage rating (10 to 40 volts DC). Connecting to the wrong power supply can result in fire or damage to equipment. CAUTION! Before applying power to the 2505, double-check all the wiring. A small, but significant number of units sustain damage due to incorrectly wired connections. Be sure you don't apply primary voltage directly to any of the 2505's signal input/output wires as this may vaporize circuit board conductors in the 2505. Page 14 2505 INSTALLATION MANUAL, Revision A SECTION TWO Installing and interfacing the 2505 The 2505 requires 10 to 40 volts DC at approximately 10 watts. If you connect pin 12 to a switched source of +5 to +40 volts DC, the 2505 will turn on whenever that voltage source is applied. Power to the 2505 can be wired in either of two ways: · For permanent power-on in which there's no remote-on output available from the host device, connect pin 12 to pin 25. For remote turn-on by the host device, connect pin 12 to any host-switched +5V to +40 volts DC output of the GPS host. In this configuration, the 2505 will turn on or off whenever the host device is turned on or off. · Installing the AN205-P antenna The 2505 operates exclusively with Northstar's AN205-P combination GPS/DGPS antenna. This "combo" antenna provides an easier and more attractive installation than those that use separate GPS and DGPS antennas. In many cases, the loop antenna design also improves noise rejection of beacon signals and provides better performance. For quick and easy connection, the 2505 uses an internal antenna splitter to separate the signal path of the one coaxial cable coming from the AN205-P antenna. 2505 INSTALLATION MANUAL, Revision A Page 15 SECTION TWO Installing and interfacing the 2505 7. 00 2. 5 Use the locking nut shown to prevent rotation of the antenna or bottoming of the mounting stanchion into the threaded mount portion of the antenna. If done with enough force, either of these may break the antenna. TNC 3. 5 Figure 2: Northstar AN205-P antenna dimensions Choosing the antenna's mounting location Mount the antenna near the top of the vehicle, where an unobstructed view of the horizon is available in all directions, but mount it lower than any high-power transmitting antennas, such as radar or satcom. Keep the antenna at least six feet away from objects that can "shade" GPS or differential signals. If position data is intermittent, check that you have the proper cable length, and verify the quality of the antenna location and the quality and proper termination of the connectors. Ensure that the 2505's ground lug terminal is securely connected to vehicle ground. CAUTION! Avoid mounting the antenna near rotating warning beacons or strobe lights, electric motors, and fluorescent lights. These can create RF interference to the differential reception. Wiring the antenna When connecting the antenna to the 2505, you can use the supplied coaxial cable or fabricate your own. (Using a cable longer than 50 feet will require an antenna with a higher gain; contact Northstar for details. ) Don't make any tight bends, and fasten the cable along its length to avoid chafing or whipping of any kind. [. . . ] HEADER CONTENTS OF DATA FIELDS $PMCAG, 901*hh<CR><LF> Example: $PMCAG, 901*4C<CR><LF> Page 36 2505 INSTALLATION MANUAL, Revision A Appendix C NMEA output protocol Self-test results message Result of the GPS sensor self-test. This message is automatically output in response to an initiated self-test request (see input message identifier 003). This message can also be requested through input message identifier 004 to retrieve the current status of the sensor without initiating a self-test sequence. HEADER CONTENTS OF DATA FIELDS $PMCAG, 902, xxxxxx, xxx, a, aaaa, xx, xx*hh<CR><LF> faults identifier number of active faults sensor self-test result1 software revision letter software variation number software part number (root number) 1. Sensor self-test result from the last initiated test (PASS, FAIL) Examples: $PMCAG, 902, 613913, 042, A, PASS, 00, 63*23<CR><LF> $PMCAG, 902, 613913, 042, A, FAIL, 03, 49*3B<CR><LF> 2505 INSTALLATION MANUAL, Revision A Page 37 Appendix C NMEA output protocol Radiobeacon proprietary information HEADER This message is automatically output in response to an MSK request (see input message identifier MSK). CONTENTS OF DATA FIELDS $PMCAG, 903, x. x, aa, x. x, x. x, x. x, x. x, x. x*hh<CR><LF> reserved (shall be null) reserved (shall be null) reserved (shall be null) reserved (shall be null) software part number (root number) radiobeacon self-test result1 impulse noise count 1. 0s means all test passed bit 0 bit 1 bits 2-5 antenna fault default battery-backed RAM invalid reserved Example: $GPCAG, 903, 6, , 2. 24, 0, 0, 0, 0*62<CR><LF> Page 38 2505 INSTALLATION MANUAL, Revision A Appendix C NMEA output protocol Global positioning system fix data HEADER CONTENTS OF DATA FIELDS $GPGGA, hhmmss. ss, 1111. 1111, a, yyyyy. yyyy, a, x, xx, xx. x, ±xxxxx. x, M, xxxx, M, xxxx, xxxx*hh<CR><LF> UTC of position latitude1 N/S--North or South longitude2 E/W--East or West quality indicator3 HDOP SVs in use4 differential reference station ID (0000-1023) age of differential GPS data7 units of geoidal separation, meters geoidal separation6 units of antenna altitude, meters altitude5 1. [. . . ]