ii
Monitoring Basics.....................................................................................................................3-3
Backplane Connections.....................................................................................................3-4
Basic Functional Check............................................................................................................3-7
Chapter 4
...........................................................................................................................4-1
UNDERSTANDING THE 1264C ..................................................................................................4-1
Overview ..................................................................................................................................4-1
Power Supply ...........................................................................................................................4-1
Power Supply Interconnections.............................................................................................4-1
Power Supply Protections.....................................................................................................4-3
Backplane ................................................................................................................................4-3
AC Interface .............................................................................................................................4-4
Cooling System ........................................................................................................................4-4
(Freestanding Unit Description) ............................................................................................4-4
Cooling The Power Supply ...................................................................................................4-4
System Monitor ........................................................................................................................4-4
Voltage Monitor ....................................................................................................................4-6
Fan Monitor ..........................................................................................................................4-6
Temperature Monitor ............................................................................................................4-6
ACFAIL* and SYSRESET* Signals.......................................................................................4-6
Chapter 5
...........................................................................................................................5-1
MAINTENANCE...........................................................................................................................5-1
What’s In This Chapter ............................................................................................................5-1
Calibration................................................................................................................................5-1
Service Strategy.......................................................................................................................5-1
Service Interval ........................................................................................................................5-1
Preparation ..............................................................................................................................5-1
Inspection and Cleaning...........................................................................................................5-2
Interior Cleaning ...................................................................................................................5-2
Exterior Cleaning ..................................................................................................................5-2
Cleaning The Fan Filters ..........................................................................................................5-3
Modular Component Removal and Replacement .....................................................................5-4
Tools Required .....................................................................................................................5-4
Removal and Replacement of The Fan Assembly....................................................................5-5
Removal and Replacement of The Power Supply Assembly ....................................................5-6
Removal and Replacement of The AC Mains Fuse..................................................................5-9
Removing and Replacing The Card Guides ...........................................................................5-11
Summary of Contents for 1264C
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