Ericsson RBS 2106 Hardware Reference Manual page 57

RBS 2106
Figure 7 RBS 2106 overview
5.1 Standard Hardware Units
This section briefly describes the standard hardware units required for
function, irrespective of configuration or frequency.
ACCU – AC Connection Unit
The ACCU connects, disconnects, and distributes the incoming AC power
supply to the PSUs and the climate unit. It consists of two parts: a Connection
Unit and a Distribution Unit.
Number of units: 1
BFU – Battery Fuse Unit
The Battery Fuse Unit (BFU) supervises connection or disconnection of the
batteries. It can also be used to provide prioritized power supply, for example
to the transmission equipment.
Each RBS cabinet will require its own BFU, regardless of battery back-up
configuration.
Number of units: 1
EN/LZT 720 0222 R3A
ACCU
Climate
unit
DF AC main switch
PSU DXU IDM OXU
BFU
Radio Base Station
FCU
Bias injector
DC/DC converter
CDU
CXU, ASU and
OXU dummies
dTRU
ADM
P008683D
13 (30)