Wavecom GR64 UART Sleep Protocols Dokumentacja Strona 115

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Chapter 9
Enclosure Selection and
Mounting Methods
This chapter will discuss the recommended methods for mounting the RFID
antennae and housing the system components.
9.1 Initial Considerations
• The device will operate outdoors, fully exposed to the elements. It is
expected to operate in these conditions for extended periods of time,
without maintenance.
• Wind will affect the vertically positioned antennae if they are not
sturdily mounted.
• Rain and sea air will cause corrosion to any exposed metal components.
• Prolonged exposure to the sun causes many plastics to become brittle.
• Sealed, dark enclosures will heat up to high temperatures if exposed
to the sun. Such high temperatures may adversely affect digital clo ck
circuits and resonant circuit tuning.
• The uplink module uses an internal antenna. Reception is poor if the
device is placed on the ground.
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