The Trimble Placer line of GPS receivers has a proven track record of exceptional reliability and longevity. Continuing the Trimble tradition of high performance and robust GPS receivers for mission critical application—and replacing the Placer 450—are two state-of-the-art Trimble models: Placer Gold APU and Placer Gold Dead Reckoning Unit Plus.
Trimble Placer Gold models are equipped with two independent, configurable RS232 serial ports (both of which may be used with an RS232 to USB 2.0 adapter), user selectable interface protocols and user selectable port speeds (bps). Both ports are available for TAIP and NMEA GPS outputs. The Radio port is available with a PPP protocol to interface with specific Motorola radios. This data allows dispatchers or managers to schedule automatic vehicle location reports based on time and/or distance traveled.
This document explains the RDI and EDACS networks
Note: These instructions are already included with the Placer Firmware releases, but may be downloaded separately here.
Note: These instructions are already included with the DR Calibration utility, but may be downloaded separately here.
This compressed file contains all the files and documentation needed to calibrate the Placer GPS 455DR's gyroscope and odometer. This utility version is compatible only with firmware version 2.30 and later.
Optional DOS-based utility for setting up and diagnosing your mobile unit.