Contents

1. Preface
2. Chapter 1　Before Starting Maintenance Work
   1.  1.1　Warning/Caution Indications
   2.  1.2　Labels/Tags
   3.  1.3　Safety Precautions
   4.  1.4　Notes Regarding Static Electricity
   5.  1.5　Other Precautions
   6.  1.6　Emergency Power Off
3. Chapter 2　Understanding the System Components
   1.  2.1　Identifying the Names and Locations of Components
   2.  2.2　Confirming the Functions of the Operation Panel
      1. 2.2.1　Display Function of the Operation Panel
      2. 2.2.2　Control Function of the Operation Panel
   3.  2.3　Checking the LED Indications
      1. 2.3.1　Operation Panel LEDs
      2. 2.3.2　LEDs on the Rear Panel (System Locator)
      3. 2.3.3　LEDs on Each Component
   4.  2.4　Confirming the Types of Cable
      1. 2.4.1　Types of Cable
      2. 2.4.2　Cable Connection Ports
4. Chapter 3　Types of Maintenance
   1.  3.1　Types of Maintenance Supported for the Crossbar Box
      1. 3.1.1　Types of Maintenance
      2. 3.1.2　Relationship Between Maintenance Parts and Types of Maintenance
      3. 3.1.3　Maintenance on Chassis of the Physical Partition
   2.  3.2　Active Maintenance
   3.  3.3　Inactive Maintenance
   4.  3.4　System-Stopped Maintenance
5. Chapter 4　Preparation and Precautions for Maintenance
   1.  4.1　Confirming the System Configuration
      1. 4.1.1　Confirming the Hardware Configuration
      2. 4.1.2　Confirming the Software and Firmware Configurations
      3. 4.1.3　Confirming the FRU Information and Resource Information
   2.  4.2　Troubleshooting
      1. 4.2.1　Determining the Causes of Failures
      2. 4.2.2　Identifying a Failure
      3. 4.2.3　Downloading Error Log Information
   3.  4.3　Maintenance Precautions
      1. 4.3.1　Precautions for Replacement
      2. 4.3.2　Precautions for Expansion
      3. 4.3.3　Precautions for Reduction
6. Chapter 5　Enabling the Removal of a FRU Requiring Maintenance
   1.  5.1　Preparing Tools Required for Maintenance
   2.  5.2　Releasing the Chassis for a Connecting Physical Partition From the System
      1. 5.2.1　Checking the Operating Condition of the Physical Partition or Logical Domain
      2. 5.2.2　Switching the Mode Switch to Service Mode
      3. 5.2.3　Releasing the Chassis for a Connecting Physical Partition From a Physical Partition
      4. 5.2.4　Powering Off a Connecting Physical Partition
      5. 5.2.5　Stopping the Entire System
   3.  5.3　Saving XSCF Setting Information
   4.  5.4　Releasing FRUs of the Crossbar Box From the System With the replacefru Command
      1. 5.4.1　Releasing FRUs of the Crossbar Box With the replacefru Command
      2. 5.4.2　Releasing FRUs in the Chassis of the Physical Partition
   5.  5.5　Accessing a FRU
      1. 5.5.1　Removing the Power Cord
      2. 5.5.2　Removing the Front Cover
7. Chapter 6　Restoring the System
   1.  6.1　Restoring the Chassis
      1. 6.1.1　Installing the Power Cord
      2. 6.1.2　Installing the Front Cover
   2.  6.2　Incorporating the FRUs of the Crossbar Box Into the System With the replacefru Command
      1. 6.2.1　Restoring the Crossbar Box With the replacefru Command
      2. 6.2.2　Restoring the FRUs of the Chassis of the Physical Partition
   3.  6.3　Diagnosing a Replacement FRU
      1. 6.3.1　Diagnosing the Crossbar Unit and Crossbar Cables
      2. 6.3.2　Checking the FRU Status After Maintenance
   4.  6.4　Restoring XSCF Setting Information
   5.  6.5　Incorporating a Chassis Into a Physical Partition
   6.  6.6　Returning the Mode Switch to Locked Mode
   7.  6.7　Powering On the Physical Partition Requiring Maintenance
   8.  6.8　Starting the Entire System
      1. 6.8.1　Starting the System With an XSCF Command
      2. 6.8.2　Starting the System From the Operation Panel
8. Chapter 7　Maintenance Flow
   1.  7.1　Maintenance Workflow
   2.  7.2　Active Maintenance Flow
   3.  7.3　Inactive Maintenance Flow
   4.  7.4　System-Stopped Maintenance Flow
      1. 7.4.1　System-Stopped/Hot Maintenance
      2. 7.4.2　System-Stopped/Cold Maintenance
9. Chapter 8　Maintaining the XSCF Unit
   1.  8.1　Before Maintaining an XSCF Unit
   2.  8.2　Location of the XSCF Unit
   3.  8.3　Maintenance Precautions
   4.  8.4　Removing the XSCF Unit
   5.  8.5　Switching the microSD Card
   6.  8.6　Installing the XSCF Unit
   7.  8.7　Checking the XCP Firmware Version
10. Chapter 9　Maintaining the XSCF BB Control Cables
    1.  9.1　Before Maintaining an XSCF BB Control Cable
    2.  9.2　Configuration of the XSCF BB Control Ports
    3.  9.3　Removing an XSCF BB Control Cable
    4.  9.4　Installing an XSCF BB Control Cable
11. Chapter 10　Maintaining the XSCF DUAL Control Cables
    1.  10.1　Before Maintaining an XSCF DUAL Control Cable
    2.  10.2　Configuration of the XSCF DUAL Control Ports
    3.  10.3　Removing an XSCF DUAL Control Cable
    4.  10.4　Installing an XSCF DUAL Control Cable
12. Chapter 11　Maintaining the Crossbar Cables (Optical)
    1.  11.1　Before Maintaining a Crossbar Cable (Optical)
    2.  11.2　Configuration of Connection Ports for Crossbar Cables (Optical)
    3.  11.3　Removing a Crossbar Cable (Optical)
    4.  11.4　Installing a Crossbar Cable (Optical)
13. Chapter 12　Maintaining the Crossbar Units
    1.  12.1　Before Maintaining a Crossbar Unit
    2.  12.2　Configuration of the Crossbar Units
    3.  12.3　Removing a Crossbar Unit
    4.  12.4　Installing a Crossbar Unit
14. Chapter 13　Maintaining the Power Supply Units
    1.  13.1　Before Maintaining a Power Supply Unit
    2.  13.2　Configuration of the Power Supply Units
    3.  13.3　Removing a Power Supply Unit
    4.  13.4　Installing a Power Supply Unit
15. Chapter 14　Maintaining the XSCF Interface Unit
    1.  14.1　Before Maintaining an XSCF Interface Unit
    2.  14.2　Location of the XSCF Interface Unit
    3.  14.3　Maintenance Precautions
    4.  14.4　Removing the XSCF Interface Unit
    5.  14.5　Installing the XSCF Interface Unit
16. Chapter 15　Maintaining the Fan Units
    1.  15.1　Before Maintaining a Fan Unit
    2.  15.2　Configuration of the Fan Units
    3.  15.3　Removing a Fan Unit
       1. 15.3.1　Accessing a Fan Unit
       2. 15.3.2　Removing a Fan Unit
    4.  15.4　Installing a Fan Unit
       1. 15.4.1　Installing a Fan Unit
       2. 15.4.2　Restoring the Chassis
17. Chapter 16　Maintaining the Fan Backplane
    1.  16.1　Before Maintaining a Fan Backplane
    2.  16.2　Configuration of the Fan Backplane
    3.  16.3　Removing the Fan Backplane
       1. 16.3.1　Accessing the Fan Backplane
       2. 16.3.2　Removing the Fan Backplane
    4.  16.4　Installing the Fan Backplane
       1. 16.4.1　Installing the Fan Backplane
       2. 16.4.2　Restoring the Chassis
18. Chapter 17　Maintaining the Operation Panel
    1.  17.1　Before Maintaining the Operation Panel
    2.  17.2　Location of the Operation Panel
    3.  17.3　Maintenance Precautions
    4.  17.4　Removing the Operation Panel
       1. 17.4.1　Accessing the Operation Panel
       2. 17.4.2　Removing the Operation Panel
    5.  17.5　Installing the Operation Panel
       1. 17.5.1　Installing the Operation Panel
       2. 17.5.2　Restoring the Chassis
19. Chapter 18　Maintaining the Cable Kit
    1.  18.1　Before Maintaining a Cable Kit
    2.  18.2　Configuration of the Cable Kit
       1. 18.2.1　Cables for the Connection Between the Crossbar Backplane Unit and Terminal Board
       2. 18.2.2　Cables for the Connection Between the Terminal Board and Fan Backplane
       3. 18.2.3　Locations for the Cable Kit
    3.  18.3　Removing the Cable Kit
       1. 18.3.1　Removing the Cables for the Connection Between the Crossbar Backplane Unit and Terminal Board
       2. 18.3.2　Removing the Cables for the Connection Between the Terminal Board and Fan Backplane
    4.  18.4　Installing the Cable Kit
       1. 18.4.1　Installing a Cable Between the Crossbar Backplane Unit and Terminal Board
       2. 18.4.2　Installing a Cable for the Connection Between the Terminal Board and Fan Backplane
20. Chapter 19　Maintaining the Crossbar Backplane Unit
    1.  19.1　Before Maintaining a Crossbar Backplane Unit
    2.  19.2　Location of the Crossbar Backplane Unit
    3.  19.3　Removing the Crossbar Backplane Unit
    4.  19.4　Installing the Crossbar Backplane Unit
21. Chapter 20　Maintaining the Dedicated Power Distribution Unit Mounted on the Rack for Expanded Connection
    1.  20.1　Before Maintaining a Dedicated Power Distribution Unit
    2.  20.2　Configuration of the Dedicated Power Distribution Unit
       1. 20.2.1　CB Switches on the Dedicated Power Distribution Unit
    3.  20.3　Removing the Dedicated Power Distribution Unit
       1. 20.3.1　For the SPARC M12-2S
       2. 20.3.2　For the SPARC M10-4S
    4.  20.4　Installing the Dedicated Power Distribution Unit
22. Appendix A　Component List
23. Appendix B　Component Specifications
    1.  B.1　Crossbar Unit
    2.  B.2　XSCF Unit
    3.  B.3　XSCF Interface Unit
    4.  B.4　Power Supply Unit
    5.  B.5　Fan Unit
    6.  B.6　Various Backplanes
    7.  B.7　Operation Panel
24. Appendix C　External Interface Specifications
    1.  C.1　Serial Port
       1. C.1.1　Wire Connection Chart for a Serial Cable
    2.  C.2　USB Port
    3.  C.3　RESET Switch
25. Appendix D　Removing the Lithium Battery
    1.  D.1　Location of the Lithium Battery
    2.  D.2　Removing the Lithium Battery