Ericsson Radio Systems AB PKRC1311004-1 Manual De Usuario
Restart and Recovery
35
Restart and Recovery
The "Restart and Recovery" function allows the RBS or a specific
Replaceable Unit, RU, (see Section Concepts below) to be started or
restarted in a controlled manner. Restart occurs with installation, repair
or reset. The restart and recovery function is used with:
Replaceable Unit, RU, (see Section Concepts below) to be started or
restarted in a controlled manner. Restart occurs with installation, repair
or reset. The restart and recovery function is used with:
•
power on
•
spontaneous reset (watchdog, software fault, memory fault)
•
reset button
•
BSC ordered reset
The restart and recovery function determines whether a unit is capable
of being brought into operation and, if needed, prepares the unit for
operation. If the unit cannot be brought into operation, then the restart
and recovery function identifies the reason for the operator using the
base station’s visual indicators.
of being brought into operation and, if needed, prepares the unit for
operation. If the unit cannot be brought into operation, then the restart
and recovery function identifies the reason for the operator using the
base station’s visual indicators.
35.1
References
If a reference is made to a function described in another chapter, please
refer to the table of contents to locate the relevant information.
refer to the table of contents to locate the relevant information.
35.2
Concepts
RU
Replaceable Unit
An RU is the smallest unit that can be
handled on site or in a repair centre and
about which information can be retrieved
via OMT or BSC.
handled on site or in a repair centre and
about which information can be retrieved
via OMT or BSC.
Main RU
Main Replaceable Unit
A main replacable unit contains one or
more processors, to which software can be
downloaded from the BSC. A Main RU is
classed either as CMRU or DMRU, see
below.
more processors, to which software can be
downloaded from the BSC. A Main RU is
classed either as CMRU or DMRU, see
below.
Sub RU
Sub Replaceable Unit
A Sub RU is always connected to a
superior Main RU. This connection is used
for the retrieval of equipment information.
A Sub RU does not normally have a
processor. An RU with a processor that is
not loadable is also classed as a Sub RU.
superior Main RU. This connection is used
for the retrieval of equipment information.
A Sub RU does not normally have a
processor. An RU with a processor that is
not loadable is also classed as a Sub RU.
Passive RU
Passive Replaceable Unit
A Passive RU has a very low level of
intelligence and is independent of the
processor system, for example, it has no
connection for O&M communication. In
the RBS 2000, for example, the cables are
Passive.
intelligence and is independent of the
processor system, for example, it has no
connection for O&M communication. In
the RBS 2000, for example, the cables are
Passive.
EN/LZT 720 0008
R1A
2001-06-26
269 (421)
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