TableB-2 Specificationsof cr ossbar unit (SPARC M10-4/M10-4S) (continu ed)
Item Description
Typeof m aintenance Inactive/coldan ds ystem-stopped
Maintenancecateg ory Replacement
TableB-3 Specificationsof cr ossbar unit (crossbar box)
Item Description
Numberof cr ossbar units 3
Location Rearof chassis
Typeof m aintenance Systemstopped
Maintenancecateg ory Replacement
TableB-4 Specificationsof XS CF unit (crossbar box)
Item Description
Numberof XSCF units 1
Location Rearof chassis
Typeof m aintenance Active/hot,in active/hot, and system stopped
Seethe follo wing chapters for details of the maintenance procedures:
SPARCM10-4S: Chapter 9 Maintainingthe Crossbar Units
Crossbarbox: Chapter 16 Maintainingthe Crossbar Units of the Crossbar Box
B.3 XSCF Unit
TheXSCF unit of the crossbar box is a control unit that is central to the system.
Thef unctions of an XSCF are as follows:
■Controlling each unit
■Console function for each physical partition that uses the TTY communication
protocol
■Communicationwith each physical partition that uses a command interface
■Managingsystem information
■Browser-based user interface function
■Connectionwith a maintenance terminal
■Nextre mote chassis interface
■Systempower control and cluster control that use a power supply interlocking
function
TableB-4 lists the specifications of the XSCF unit of the crossbar box.
AppendixB ComponentSpecifications 469