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RNCFLMIPA2800 Unit State Administration & Replacing PIU
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Objectives
At the end of this module the participants will be able to:Check working state of RNC units.Change Working state of redundant unitsRestart functional UnitsCorrectly replace and change plug in units when needed
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SP - EX
WO - EX
TE - EX
SE - OU
SE-NH
Unit States
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WORKING STATE AND RESTART HANDLING COMMAND <US_>
< ZUSI;
LOADING PROGRAM VERSION 2.13-0
WORKING STATES OF UNITS 2002-05-30 22:32:37
UNIT PHYS LOG STATE INFO
OMU-0 0000H 4002H WO-EX -
OMU-1 0001H 4002H SE-NH -
MXU-0 0012H 4243H WO-EX -
MXU-1 0024H 4243H SE-NH -
...
A2SU-0 > WO-EX -
A2SU-1 > WO-EX -
...
COMMAND EXECUTED
Checking Working States
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< USI:DMCU,0::FULL:;
WORKING STATES OF UNITS 2009-02-25 12:36:06
UNIT PHYS LOG STATE INFODMCU-0 WO-EX -DMPG-0 000CH 4470H WO-EX -DSP-0 WO-EX -DSP-1 WO-EX -
DMPG-1 0010H 4471H WO-EX -DSP-2 WO-EX -DSP-3 WO-EX -
DMPG-2 0011H 4472H WO-EX -DSP-4 WO-EX -DSP-5 WO-EX -
DMPG-3 0012H 4473H WO-EX -DSP-6 WO-EX -DSP-7 WO-EX -
NUMBER OF UNITS DISPLAYED = 13COMMAND EXECUTED
Checking Working States of Child Unit
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Main state Full state Name
WO WO-EX Working, executing
WO-RE Working, restarting
BL BL-EX Blocked, executing
BL-ID Blocked, idle
BL-RE Blocked, restarting
SP SP-EX Spare, executing
SP-UP Spare, warming-up
SP-RE Spare, restarting
TE TE-EX Test state, executing
TE-RE Test state, restarting
SE SE-OU Separated, out of use
SE-NH Separated, no hardware
Unit SubStates
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Working state changed for:• Configuration• Testing• Clear up error conditions
Faulty units in WO-EX should be replaced as soon as possible
Changing Working State
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Switchover possible if unitsin 2N or N+1 redundancyIf unit has ongoing tasks, FCD parameter must beusedIn N+1 units, working statechange from SP to WO doesnot cause switchover
WO-EX SP-EX
SP-EXWO-EX
Activating Switchover
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Diagnosing faulty units• Change unit state to TETaking out of use• Change unit state to SE-
NH• Transition procedure must
be followed• If tasks ongoing, FCD must
be used• Unit can be removed when
power is off
Working state LED displayWO-EX GreenWO-RE Green blinkBL-EX GreenBL-ID GreenBL-RE Green blinkSP-EX OrangeSP-UP Green blinkSP-RE Green blinkTE-EX Red blinkTE-RE Red blinkSE-OU RedSE-NH None
Taking a Unit Out of Use
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BL SETEWO
SP SETEWO
2N or N+1 redundancy:
SN+ or NO redundancy:
Changing of working states (USC)
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Restarting unit• MML command - ZUSURestarting system• MML command – ZUSSLoading modes• File loading
– Immediate loading; F=IMM
• Code loading– From memory; default– Total code loading; C=TOT– Total code loading from disk; C=CDSK
USU:ICSU,1::C=DSK,F=IMM,;
RESTART REQUESTED IN ICSU-1
CONFIRM COMMAND EXECUTION: Y/N ? Y
RESTART ORDERED UNIT = ICSU-1
COMMAND EXECUTED
Restarting
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Bring the plug-in units in their inner packages close to the cabinets and place them on an ESD-protected surface.
Connect your ESD wrist strap to the earth bonding point in the cabinet you are working on.
ESD Precautions
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Check that the unit working state is SE-NH (USI)
• ZUSI:<unit type>;Change the working state if
the unit working state is not SE-NH, (USC)
• ZUSC:<unit type>,<unit index>:<working state>;
or
WO-EX BL-EX BL-ID
SE-NH SE-OU TE-EX
(by user)
(by user) (by user)
(by system)
(by user)
WO-EX SE-NHSE-OUTE-EX
(byuser)
(byuser)
(byuser)
or
WO-EX SP-EX TE-EX
SE-NH SE-OU
(by user)
(by user)
(by system)
(by user)
Ensuring Correct Unit State
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Remove any cable(s) from thefront panel of the plug-in unit
Unscrew locking screws on thefront panel (A)
Open two insertion/extractionlevers on the front panel (B)
Remove the plug-in unit fromthe subrack (C)
A
B C
Removing the Unit
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Insert the spare plug-in unit in its location (A)
Close the insertion/extraction levers on the front panel of the plug-in unit (B)
Close the locking screws carefully (C)
Insert cable(s) back to the front panel of the plug-in unit if there were any
A
C
B
Installing PIU
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Set the functional units of a plug-in unit to the SE-OU working state (USC)
- ZUSC:<unit type>,<unit index>:SE;Set the functional units of a plug-in unit to the TE working
state (USC)• ZUSC:<unit type>,<unit index>:TE;• Check that the repair operation was successful by
starting the total diagnosis of the unit (UDU)• ZUDU:<unit identification>;
Testing the Unit
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Set the unit to the SP or WO working state (USC)• ZUSC:<unit identification>:<working state>;
Check that the alarm disappears, if necessary (AAP)• ZAAP;
Finishing Installation
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