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4 SPARC Enterprise T5120 and T5220 Servers Service Manual • July 2009
Related Information
■ “Infrastructure Boards in SPARC Enterprise T5120 Servers” on page 2
■ “Identifying FRUs in SPARC Enterprise T5120 Servers” on page 181
■ “Identifying FRUs in SPARC Enterprise T5220 Servers” on page 195
Internal System Cables for SPARC
Enterprise T5120 Servers
The following table identifies the internal system cables used in SPARC Enterprise
T5120 servers.
Related Information
■ “Identifying FRUs in SPARC Enterprise T5120 Servers” on page 181
Hard drive backplane This board includes the connectors for the
hard drives. This board also contains the
interconnect for the front I/O board, Power
and Locator buttons, and system/component
status LEDs.
Each drive has its own Power/Activity, Fault,
and Ready-to-Remove LEDs.
Front I/O board This board connects directly to the hard drive
backplane. This board is packaged with the
DVD drive as a single unit.
Cable Description
Top cover interlock cable This cable connects the safety interlock switch
on the top cover to the power distribution
board.
Ribbon cable This cable carries signals between the power
distribution board and the motherboard.
Hard drive data cable This cable carries data and control signals
between the motherboard and the hard drive
backplane.
Board Description