User Manual

RBS 2102 Macro Outdoor RBS
PSU - Power Supply Unit
The PSU converts the incoming AC mains voltage into regulated DC voltage.
Number of units: 1 – 4.
TRU - Transmitter and Receiver Unit
The TRU is the transmitt
er/receiver unit for the RBS. The TRU broadcasts and
receives Radio Frequency (RF) signals to and from the mobile station. Each
TRU can service several mobile units simultaneously.
Number of units: 1 – 6.
5.2 Optional Hardware Units
This section describes the hardware units that are available as options for
the cabinet.
Batteries
The RBS 2102 can be equipped with two battery blocks to supply back-up
power in the event of mains failure.
Number of units: 0 – 2.
Bias injector
The bias injectors are used to provide the TMA with DC power from the
TMA-CM, over the RX/TX feeder cables.
Number of units: 0 – 6.
ddTMA - dual duplex TMA
The ddTMA is mounted close to the antennas and amplifies the receiver signal
and combines it with the transmitter signal. The combined signal is transmitted
on a single feeder between the ddTMA and CDU. A bias injector is required
for power.
Number of units: 0 – 6.
DXX – Digital Cross Connector
Digital Cross Connector (DXX) is a plug-in unit which combines cross-connect,
control and interface functions. It has four 2 Mbit/s interfaces complying with
15 (24)
EN/LZT 720 0220 Uen R2A