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Huawei OptiX RTN 900 Quick Installation Manual page 22

Radio transmission system

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4
Installing the Heater in the APM30H and TMC11H Cabinets
(Optional)
Install the heater.
The heater is preferably installed in the bottom
1U space of the cabinet.
NOTE
When the temperature inside the cabinet is lower than 0°C, the heater starts working. When the temperature
inside the cabinet is higher than 15°C, the heater stops working.
The maximum power of the heater during the heating process is 300 W.
Install the power cable for the heater.
AC OUTPUT
L0
N0
power cable for
the heater
APM30H Cabinet
If both the SOU and the heater are installed in the
cabinet, the heater is installed above the SOU.
TMC11H Cabinet
AC input
power cable
20
AC input power
cable
power cable
for the
heater.

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