Huawei BTS3900A Installation Manual page 23

BTS3900A(Ver.B)
Installation Guide
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Figure 3-6 Requirements of customer equipment dimension and ventilation
(1) Customer equipment with
natural ventilation
Cabinet Configuration Principles
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Issue 01 (2011-10-25)
Requirement for air vents:
– If the customer equipment has built-in fans, the fans must have air vents on the right
and left or on the front and back so that wind blows from left to right or from front to
back.
– If the customer equipment support natural ventilation, a minimum of 1 U slot must be
reserved above and below the slot respectively for dissipation.
Requirement for temperature
– In areas where the highest temperature is or is below 40°C, the customer must be able
to function properly at -10°C temperature or even lower temperature and at 55°C or
even higher temperature.
– In areas where the highest temperature is above 40°C, the customer must be able to
function properly at -10°C temperature or even lower temperature and at 60°C or even
higher temperature.
A single BTS3900A can be configured with a maximum of 12 RFUs. That is, more than
12 RFUs must be configured in different BTS3900As.
A single BTS3900A can be configured with a maximum of two cabinet assemblies, and a
cabinet assembly must be installed side by side with a default distance of 40 mm. A cabinet
assembly consists of one APM30H and one RFC.
A single APM30H can be used with a maximum of one RFC and with a maximum of two
IBBS200Ds/IBBS200Ts.
The RFC can be stacked only under the APM30H/TMC11H.
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(2) Customer equipment with air
vents on the right and left
3 Information About the Installation
(3) Customer equipment with air
vents on the front and back
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