LSI 25083 manual MegaRAID SAS 9261 RAID Controller, MegaRAID SAS Software User’s Guide for

Jumper	Type	Description
JT11	IPMI-style SMBus	3-pin shielded header
	(System Manage-
	ment)/I2C header	Provides enclosure management support.
JT12	Individual Drive Fault LED	16-pin connector
	header for Eight Phys (0-
	7)	Indicates drive faults. There is one LED per
		port. When lit, each LED indicates the
		corresponding drive has failed or is in the
		Unconfigured-Bad state. Refer to the
		MegaRAID SAS Software User’s Guide for
		more information about drive states.
		The LEDs function in a direct-attach
		configuration (there are no SAS expanders).
		Direct attach is defined as a maximum of
		one drive connected directly to each port.
		Note: This header is used for RAID
		controllers with internal SAS ports
		only.
JT13	Universal Asynchronous	4-pin connector
	Receiver/Transmitter
	(UART) debugging	Reserved for LSI use.

3.1.3MegaRAID SAS 9261 RAID Controller

The MegaRAID SAS 9261-8i low-profile SAS/SATA II RAID controller controls eight internal SAS/SATA ports through two SFF-8087 mini-SAS 4i connectors.

This subsection provides the board layout, and connector and jumper information for the RAID controller. Figure 3.3 shows the jumpers and connectors on the SAS 9261-8i RAID controller.

3-6	MegaRAID SAS RAID Controller Characteristics
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