User Manual

Table Of Contents
RBS 2107
Operational All RUs The RU is operational
Power fault PSU AC power or at least one phase is
missing in the RBS
RBS fault DXU One or more faults are detected on
RUs in the RBS
RF off dTRU No RF signal
TMA 1 6 TMA-CM The TMA is operational
Transmission OK DXU Signal and frame sync. OK
Buttons
Table 12 Switches and Circuit Breakers
Switch
Position Function
Test button CLU CLU self-test
DXU reset DXU Resets the DXU and all
subunits
Local/remote DXU, dTRU Changes mode between
local and remote
TRU reset DTRU Resets the dTRU
Battery disconnected BFU Disconnects the battery
supply
DC out 1 BFU CB for DC out 1
DC out 2 BFU CB for DC out 2
EC BFU CB for EC supply
Mains switch ACCU Mains switch for power
supply
7 Power System
This section provides information on the power system of the RBS 2107.
The main characteristics of the RBS 2107 power supply are as follows:
Only Alternating Current (AC) mains supply is used
Battery backup is optional and can be internal or external (but not both at
the same time)
The socket of the AC service outlet is available in four variants according
to national standards
22 (28)
E
N/LZT 720 0491 Uen R2A