User's Manual Part 2

APCD-LM043-8.0 (DRAFT C) 163
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 163
•
Cleaning the Equipment on page 164
•
Checking the CCU Shelf Cooling Fans on page 164
Maintaining Temperature and Humidity
Make sure the CCU and EUM sites meet the environmental requirements outlined in Table 27.
Table 27 Temperature and Humidity Requirements
Equipment
Operating
Temperature
Non-condensing
Relative Humidity
Storage
Temperature
CCU3000 0° to +50°C 5% to 95% -40° to +70°C
EUM3000 10° to +40°C 5% to 95% -40° to +70°C
EUM3003 0° to +40°C 5% to 95% -40° to +70°C