User's Manual

Radio Base Station RBS 2308
10 (22) 2/EN/LZT 720 0327 P1D
6 Interfaces
In this section, all external and internal connections are listed, as well as the
test interface and the operator interface.
Most external connectors enter the cabinet through the bottom of the cabinet.
The earthing connection is located on the top of the MBU. Test and operator
interfaces are located on cabinet hardware units.
P010182A
External
.
Ext. alarms
.
GPS/LMU
.
OMT
.
EOM
.
DC for external use
.
TXL bus
.
Transmission
.
Power supply
Internal
RRU
MBU
IXU
.
Antennas
Figure 5 Internal and external interfaces
6.1 External connections
Most external connectors enter the cabinet through the bottom. The earthing
connection is located on the top of the MBU, and the OMT connection is on
the side of the IXU.
External connections for the RBS 2308 include the following:
• Antenna interface
• AC mains and earthing interfaces
• Transmission interface
• Alarm interface
• OMT interface
• GPS/LMU interfaces
• DC supply for LMU and MINI-LINK E Micro
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