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Trimble unveils mini GPS timing module

Trimble introduced its smallest embedded GPS receiver for timing applications–the LassenTM PT module. With major advancements in performance, power consumption and size, the mini Lassen PT module enables system integrators to add precise GPS or UTC time and synchronization to many products where cost or size had previously been a limitation. The announcement was made at the Embedded Systems Conference. Precise timing and synchronization is vital to wireless infrastructure, efficiently controlling the flow of network information data to maximize the use of bandwidth. The Lassen PT provides a low-cost, easy to use, highly accurate and reliable GPS timing source for the telecommunications, broadcast synchronization, power transmission and wireless industries.

Prior to the Lassen PT, many timing applications used smart antennas for system synchronization. The small, 3.3 volt Lassen PT now enables integrators to embed precise GPS timing in their actual application. The module’s tiny form factor (26mm x 26mm x 6.4mm) – about the size of a postage stamp – includes a metal shield, and can easily fit into most applications. Timing features of the Lassen PT include Automatic Self-Survey to ensure accurate reference position for improved timing accuracy; the Overdetermined Timing Mode in static timing applications to provide a very precise solution; Timing Receiver Autonomous Integrity Monitoring (TRAIM) to assure high PPS integrity in Overdetermined Timing Mode; and others. The modular design also allows for reduced integration time and low implementation risk. In addition, Trimble’s Lassen PT enables greatly increased network security. Its implementation can be made completely inside the network firewall, allowing for an independent, traceable and dependable GPS timing and synchronization source for the ultimate in network security without an Internet connection. Trimble’s developer’s kits include: the Lassen PT GPS module mounted on an interface board in a durable metal enclosure, an active, external 3.3Vdc Bullet antenna, 75 feet of RG-6 cable (TNC-TNC), TNC to SMA adapter, AC/DC power adapter, a starter kit enclosure including a motherboard that provides serial output, and a serial interface cable. A reference manual and monitor programs are provided on CD-ROM. Lassen PT uses Trimble Standard Interface Protocol (TSIP) and NMEA. The Lassen PT GPS module and developers kit is expected to be available in the fourth quarter of 2003 through Trimble’s worldwide sales organization.