Ericsson MINI-LINK E - 7.3 DDU - DC Distribution Unit

MINI-LINKEandEMicro
• Power supply functions:
− DC/DC converter that conver ts the incoming DC voltage (24 – 60 V DC,
nominal DC power) to –48 V DC.
− Optional AC/DC converter, which converts the mains AC (100 – 250 V
DC, nominal) supply to –48 V DC, with back-up batteries to be activated
in case of disrupted mains supply.
The RCB can be installed either at a mast (pole diameter 50 – 120 mm , L-profile
40x40x5–80x80x8mm)oronawall,upto400mfromtheradio. Itis
equipped with lightning and shor t circuit protection.
An alar m signal is generated if there is loss of AC power supply.
PC with
MSM
MINI-LINK
E Micro
MINI-LINK
E Micro
MINI-LINK
E Micro
Radio Connection Box
Traffic 1
Traffic 2
O&M
Radio cable
Radio cable
Radio cable
Traffic
Distribution
AC/DC
AC
DC
O&M
Switch
O&M
Switch
Batteries
DC/DC
NCC
3582
Figure 80 Radio C onnection Box (RCB) connected to three MINI-LINK E
Micro radios
114
AE/LZT 110 2012 R8C 2002-03-04