User Manual

RBS 2101, RBS 2102, RBS 2103 and RBS 2202 Hardware Reference Manual
4.2.4 Heating
Description
The heating function uses a combination consisting of a heating element and
fans to force the heated air through the RBS air channel system. The heating
function controls the internal temperature to above the normal operation low
limit.
Operational Conditions
This function is available with low internal temperature and AC power.
The function is only used in products specified for external temperature ranges
whose lower limit is below +5

C.
4.2.5 Climate Supervision
The internal temperature and humidity of the air in the RBS are measured by
sensors and kept within working ranges.
The following parameters are measured:
• The internal temperature outside the normal range.
• The internal temperature outside the safe function range.
• The internal relative humidity raised above the upper limit for safe function,
see note below.
Note: The humidity function is not needed for RBSs designed for indoor
use according to ETSI 3.1.
Administration
• The internal temperature in the RBS cabinet is readable.
• The internal realative humidity in the RBS is readable. See note below.
Note: The humidity function is not needed for RBSs designed for indoor use
according to ETSI 3.1.
4.2.6 Reliability
The cooling Climate Protection is available when the temperature is within the
specified external normal condition range. Alarm reporting and administration
are available within the safe function range.
The Heating function is available when the temperature is above the specified
external normal condition low limit and up to an internal temperature of +5

C.
Alarm reporting and administration are available within the safe function range.
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EN/LZT 720 0023 Uen R3B 2010-06-10