WaveRider LMS4000, Руководство пользователя

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APCD-LM043-4.0 125
10
Maintaining the Network
The LMS4000 900MHz radio network requires virtually no maintenance. This chapter
describes what you need to do to maintain the CCU and EUM operating environments.
The CCU and EUM must be kept in a temperature-controlled and dust-free environment, as
described under the following headings:
• Maintaining Temperature and Humidity on page 125
• Cleaning the Equipment on page 125
• Checking the CCU Shelf Cooling Fans on page 126
Maintaining Temperature and Humidity
Make sure the CCU and EUM sites meet the environmental requirements outlined in Table 25 .
Table 25 Temperature and Humidity Requirements
Cleaning the Equipment
WARNING!
Make sure you follow ESD precautions when you touch and
clean CCU and EUM components.
Equipment
Operating
Temperature
Non-condensing
Relative Humidity
Storage
Temperature
CCU 0° to +50°C 5% to 95% -40° to +70°C
EUM 10° to +40°C 5% to 95% -40° to +70°C