Interfaces
Connection
Description
Connector Type
External alarms
External alarm inputs from
DF
Champ .050 (on DXU)
ESB-1
ESB to co-sited cabinets
Female 9-pin D-sub
(on DXU)
ESB-2
ESB to co-sited cabinets
Female 9-pin D-sub
(on DXU)
DCCU-13
+24 V DC battery backup
2 terminals
Earth
Main earth terminal
M8 stud (cabinet top)
ACCU-11
AC power to PSU-AC-32
Screw terminals
DCCU-11
0
48 V DC power to
PSU-DC-32
Screw terminals
ASU
Antenna sharing
connections
SMA connector
TMA power
DC power supply through
bias injectors to the TMAs
Female 15-pin D-sub
(on TMA-CM)
GPS
Synchronization from GPS
antenna
RJ-45 (on DXU)
7.3
Test Interface
The test interface for the RBS is on the front panel of the DXU unit. The
Operation and Maintenance Tool (OMT) port is used to connect the OMT to
the RBS. A remote OMT can also be used from the BSC, which sends signals
over the Abis interface.
7.4
Operator Interface
The Man Machine Interface (MMI) in the RBS is based on visual indicators and
buttons located on the hardware units in the cabinet.
Indicators
Description
Battery mode
Indicates that the RBS is running on battery
RBS fault
One or more faults are detected on RUs in the
RBS
EPC bus fault
Indicates the state of the EPC bus
Ext alarm
One or more supervised external alarms are
active
Fault
Fault detected and localized to the RU
25
19/1551-LZA 701 0001 Uen PG1
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2010-10-08