Ericsson RBS 2106 Hardware Reference Manual page 279

3.2 Circuit Breaker
The circuit breaker disconnects the batteries if the current becomes too high. It
can also be manually operated on the front of the BFU to connect or
disconnect the batteries from the DC distribution.
3.3 Shunt
The shunt is used to sense the input current. The SM senses the value, which
is used for control of the BFU.
3.4 TM Supply
One high-power TM output exists for supply of transmission equipment.
4 Interfaces
The BFU has the following interfaces:
•
•
•
•
4.1 Signal and Power Interfaces
The tables below show input data and output current.
Table 2
Nominal input voltage
Permitted variation input voltage
Non-destruction input voltage
Power
Nominal input current
Maximum input current
Maximum current ripple
(20 Hz - 20 kHz)
Battery
RBS DC distribution
TM supply 50 A
EPC bus
Input data
+24 V DC negative ground
+18.0 to +29.0 V DC
0.0 to +32.0 V DC
4800 W
200 A
220 A
24 Arms
5(6)
EN/LZT 720 0276 R1A