Huawei Airbridge DBS3900 Product Description page 14

1 Overall Structure of the DBS3900
Composition of the DBS3900
Device
APM30
DCDU
EMUA
SLPU
DDF
DC power system
AC power system
1.1 Physical Structure of the DBS3900
This describes the physical structure of the DBS3900, which consists of the BBU3900,
RRU3606, and auxiliary equipment.
1.2 Physical Ports of the DBS3900
This describes the physical ports of the DBS3900.
1-2
There are two types of RRU3606s. One type uses DC power supply whereas the other type uses AC
power supply.
The band classes that the DC RRU3606 and AC RRU3606 support are as follows:
The DC RRU3606 supports the 450 MHz, 800 MHz, 1900 MHz, and AWS band classes.
The AC RRU3606 supports the 800 MHz A and AWS band classes.
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Description
The APM30 is an integrated power system for outdoor use and
has the following features:
Supporting -48 V DC and 110/220 V AC power supply
Providing at most 12 U space for user equipment when not
configured with additional devices
Supporting internal storage batteries in the case of AC input
Supporting piled installation with the storage battery cabinet
(under the APM30 cabinet), which is optional
The DCDU is a power distribution box and supports one DC
input and nine DC outputs.
The EMUA is an environment monitoring unit and implements
monitoring for the site environment and user equipment.
For details on the functions of the EMUA, see the EMUA User
Guide.
The SLPU is a lightning protection unit, which is used to
configure the UELP and UFLP. It implements lightning
protection for E1/T1 and FE/GE signals.
DDFs are classified into two types, which are used for coaxial
cables and twisted-pair cables respectively. A DDF is required
when the transmission equipment and BBU3900 are configured
in the same cabinet.
Made up of PSU modules, the DC power system converts
DC/DC
+24 V DC input to -48 V DC output.
Made up of PSU modules and PMU modules, the AC
AC/DC
power system converts 220/110 V AC input to -48 V DC
output.
Airbridge DBS3900 CDMA Base Station
Product Description
Issue 11 (2010-06-18)