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TP48200A-HX09A1 and TBC300A-DCA5 Telecom
Power
User Manual
Table 3-12 UIM02C pin definitions
Silkscreen
TEM-HUM
WATER
TEMP1
TEMP2
GATE
SMOKE
BTEMP
3.6 Temperature Control Unit (for the TP48200A-HX09A1)
3.6.1 Heat Exchange
The equipment compartment of the power cabinet adopts heat exchanging to cool the
equipment compartment, in which heat is exchanged through internal circulation and external
circulation.
Internal circulation: hot air in the equipment compartment is drawn by the internal fan into the
heat exchanger, passes through the heat exchanging core from top to bottom, then releases
heat to change to cold air, and finally returns to the equipment compartment through the
internal air exhaust vent under the heat exchanger.
External circulation: natural air outside the equipment compartment is drawn by the external
fan into the heat exchanger via the equipment compartment, passes through the heat
exchanging core from bottom to top, then absorbs heat to change to hot air, and finally flows
out of the equipment compartment from the external air exhaust vent.
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Copyright © Huawei Technologies Co., Ltd.
Pin Definitions
12 V
ENV_TEMP
12 V
ENV_HUM
12 V
WATER
GND
Not defined
GND
TEMP1
GND
TEMP2
GATE+
GATE-
SMOKE
12V
GND
BTEMP
3 Components
33
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