Chapter 21
Maintaining the Crossbar Backplane
Unit of the Crossbar Box
Thisch apter describes the procedure for maintaining the crossbar backplane unit
mounted in a crossbar box.
Location of the Crossbar Backplane Unit
BeforeMaintaining the Crossbar Backplane Unit
Enablingthe Removal of the Crossbar Backplane Unit
Removingthe Crossbar Backplane Unit
Installingthe Crossbar Backplane Unit
Restoringthe System
21.1 Location of the Crossbar Backplane
Unit
Thissection describes the location of the crossbar backplane unit.
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