Garmin GPS 25 LP Technical Specification

Garmin GPS 25 LP Technical Specification Manual pdf 6 page image

2Low Voltage - GPS25-LVx designation indicates that the unit is designed tooperate from a low voltage 3.6VDC to 6.0VDC supply. Operation at about 4VDCis the most power efficient mode of operation for the GPS25LP sensor. The unit isprotected if a high voltage is inadvertently applied to the input.RS-232 Serial Data - GPS25-xVS designation means that the two bi-directionalserial data ports are true RS-232 ports conforming to the RS-232E standard.CMOS Serial Data - GPS25-xVC designation means that the two bi-directionalserial data ports use CMOS output buffers. The inputs buffers will accept eitherCMOS(TTL) voltage levels or RS-232 voltage levels. This configuration isadequate for communicating directly with serial devices over short cable lengths(less than 20 meters).1.3 FeaturesThe GPS 25LP sensor boards provide a host of features that make it easy to integrateand use.1) Full navigation accuracy provided by Standard Positioning Service (SPS)2) Compact design ideal for applications with minimal space3) High performance receiver tracks up to 12 satellites while providing fast first fixand low power consumption4) Differential capability utilizes real-time RTCM corrections producing less than 5meter position accuracy5) On-board clock and memory are sustained by a rechargeable memory backupbattery which recharges during normal operation or by optional external standbypower6) User initialization is not required.7) Two communication channels and user selectable baud rates allow maximuminterface capability and flexibility. The standard channels are CMOS/TTL levelsfor the -xVC version or RS-232 for the xVS versions.8) Highly accurate one-pulse-per-second output for precise timing measurements.The default pulse width is 100 msec, however it is configurable in 20 msecincrements from 20 msec to 980 msec.9) Binary Format Phase Data Output on TXD2