Ericsson RBS 2106 Hardware Reference Manual page 358

Climate Unit for RBS 2106
Indicators
Table 3
Indicator
CCU FAULT
OPERATION
EPC BUS
HEAT FAULT
HE.INT.FAN
HE.EXT.FAN
PWR. FAULT
EPC-bus Connectors
The EPC-bus is an optical communication bus used for RBS communication.
Table 4
Connector
TD
RD
Test button
The test button on the front panel of the CCU activates the test function. After
the test has been completed, the indicators will present the status for two
minutes. No alarm is sent if there is a malfunction.
The total test time is approximately 6.5 minutes. During that time, the following
are checked:
•
•
•
•
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8 (8)
CCU front panel indicators
Description
Fault
Operational
EPC-bus fault
Heater fault
Heat exchanger internal fan fault
Heat exchanger external fan fault
Power fault
EPC-bus connectors
External fan
Internal fan
Heater active
Normal operation/failure information from the indicators
Function
Transmit
Receive
Due to continued progress in methodology, design and manufacturing,
the contents of this document are subject to change without notice.
Heat Exchanger Climate Unit
Colour
Red
Green
Yellow
Yellow
Yellow
Yellow
Yellow
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