R&S XU 4200 Troubleshooting
6166.5368.02.01 4.24
The following table shows restart triggers (referenced shortly as “triggers”)
and the related events in the event log. The restart-related events described
above are not part of the table. Please note that some triggers do not create
an event in the event log. The disjunctive method can be used for detection
of such triggers.
Restart
Trigger
Trigger
Description
Trigger
Source
Module
processing
the trigger
Additional
Events in RX
and TX Event
Logs
Restart Type
Switch off HW restart Local User MMI –
Hold ESC
button for
more then 3s
SW restart Local User MMI –
352 TX RST REQ
RC
LAN RST
CMD
Radio gets a restart
request via LAN
Remote client TX, RX
440 RX RST REQ
RC
Leave
interactive
mode
Leaving USB
Service or Factory
mode
Local User
configuring the
radio via USB
interface (using
R&S ZS4200)
TX, RX, MMI –
Requested
restarts
WD restart Software parts of
the radio are
guarded by WD
mechanism which
may trigger radio
restart in case of
software failure
Internal MMI For details see
Fig. 4.2 Events
related to internal
restart triggers.
Partition
management
Due to safety of
remote update there
are two firmware
storage places
(partitions) in the
radio. Partition
management
controls booting
process of three
independent
modules (TX, RX,
MMI) and may
restart the radio in
case of
inconsistency.
Internal MMI The information
event is stored
during every
booting phase.
For details see
Fig. 4.2 Events
related to internal
restart triggers.
Power line
interruption
When the radio
operates without
DC and when AC is
disconnected.
UPS
malfunction,
cable pull out,
electrical power
blackout, etc.
– –
Unrequested
restarts
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