Ericsson RBS 2106 Hardware Reference Manual page 255

ADM-01 Auxiliary Distribution Module
The ten outputs on the ADM-01 are divided into two groups: DC out TM1 and
DC out TM2. The outputs are protected by circuit breakers that function both
as fuses and manual disconnect switches.
It is possible to feed the ADM with either +24 V DC or –48 V DC, or both. The
feed used is shown by two indicators on the front panel.
One +24 V DC input is connected to the TM1 output group. The second +24 V
DC input is connected to the TM2 output group.
The two –48 V DC inputs are connected in parallel to both the TM1 and TM2
groups.
The ADM is delivered with a +24 V DC configuration. By removing the front
panel and moving a fuse to the –48 V DC position, it is possible to configure
an output for distribution of –48 V DC. Connection of the voltages is shown on
the label on the front panel.
The output "Out 100W" is fed –24 V DC from the TM1 input. These outputs
are also protected by circuit breakers that function as fuses and manual
disconnect switches.
EN/LZT 720 0300 R1A 5 (8)