Motorola M12 Oncore User's Guide download pdf (Page 33)

Chapter 3 - Receiver Descriptions

Figure 3.6 100PPS Output Waveform

The 1PPS Offset and 1PPS Cable Delay features work the same in 100PPS mode as they do in

1PPS mode. In 100PPS mode, these commands are used to accurately control the placement of

the pulse after the long pulse.

Mean Time Between Failure (MTBF)

The MTBF for the M12+ Oncore family of GPS receivers has been computed using the methods,

formulas, and database of MIL-HDBK-217 to be approximately 750,000 hours (>85 years) at

40ºC. The value has been computed assuming a static application in a benign environment at the

given temperature. This reliability prediction only provides a broad estimate of the expected

random failure rates of the electrical components during the useful life of the product, and is not

to be used as absolute indications of true field failure rates

Receiver Module Installation

Your receiver has been carefully inspected and packaged to ensure optimum performance. As

with any piece of electronic equipment, proper installation is essential before you can use the

equipment. When mounting the M12+ receiver board into your housing system, special

precautions need to be considered. Before you install the receiver, please review the following:

Electrostatic Precautions

The Oncore Receiver printed circuit boards (PCBs) contain parts and assemblies sensitive to

damage by electrostatic discharge (ESD). Use ESD precautionary procedures when handling the

PCB. Grounding wristbands and anti-static bags are considered standard equipment in protecting

against ESD damage.

Motorola GPS Products - M12+ User's Guide Revision 6.X 09FEB05

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Motorola M12 Oncore User's Guide Page 33