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Osmocom u-blox LEA-6T GPS timing board
This is the Osmocom u-box LEA-6T GPS timing module evaluation board.
Using this board, you can not only generate the usual 1-PPS signal, but also generate a gps-disciplined, software-configurable clock signal between 0.25Hz and 10 MHz.
The UART of the LEA-6T module is accessibly through an osmocom-style 2.5mm 3.3V serial jack, compatible with the cables we sell separately. You can also directly connect your computer to the USB device port (mini-B jack), where the LEA-6T enumerates as a USB serial device. Furthermore, many other signals (SPI, GPIO, ...) of the LEA-6T are exposed on a 2x6pin header (2.54mm pitch).
The GPS antenna is attached via a SMA or U.FL connector. You need to obtain a GPS antenna separately.
The Timepulse output is available on a SMA or U.FL connector, as well as on the abovementioned 2x6pin header.
This product is fully assembled. You only need to attach the antenna and your computer. An optional CR-2032 battery for RTC backup is not included.
More information on this board, including full schematics can be found at http://openbsc.osmocom.org/trac/wiki/osmo-lea6t-gps