Server User Manual

Table B-2
Specifications of crossbar unit (SPARC M10-4/M10-4S) (continued)
Item Description
Type of maintenance Inactive/cold and system-stopped
Maintenance category Replacement
Table B-3
Specifications of crossbar unit (crossbar box)
Item Description
Number of crossbar units 3
Location Rear of chassis
Type of maintenance System stopped
Maintenance category Replacement
Table B-4
Specifications of XSCF unit (crossbar box)
Item Description
Number of XSCF units 1
Location Rear of chassis
Type of maintenance Active/hot, inactive/hot, and system stopped
See the following chapters for details of the maintenance procedures:
SPARC M10-4S: Chapter 9 Maintaining the Crossbar Units
Crossbar box: Chapter 16 Maintaining the Crossbar Units of the Crossbar Box
B.3 XSCF Unit
The XSCF unit of the crossbar box is a control unit that is central to the system.
The functions of an XSCF are as follows:
Controlling each unit
Console function for each physical partition that uses the TTY communication
protocol
Communication with each physical partition that uses a command interface
Managing system information
Browser-based user interface function
Connection with a maintenance terminal
Next remote chassis interface
System power control and cluster control that use a power supply interlocking
function
Table B-4 lists the specifications of the XSCF unit of the crossbar box.
Appendix B Component Specifications 469