Intel BCW1USBPWB Datasheet download pdf (Page 37)

1U Server Chassis SR1300 Hot-Swap SCSI Backplane

Revision 1.2

Intel order number A94544-004

6. Hot-Swap SCSI Backplane

The server chassis SR1300 can support a multifunctional SCSI backplane, supporting the

following features:

• Three SCA2 compatible hot-swap SCSI connectors

• Floppy/CDROM module interface connector

• Support for the following SCSI bus specifications: Ultra-2, Ultra-160, and Ultra-320

• Active SCSI termination (SPI-4 compatible)

• Support for dual mode LVD operations

• Per-drive power control, including automatic slot power down upon drive removal

• SAF-TE 1.0-compliant enclosure management and monitoring functions

• Drive Activity/Fault LEDs

• A pathway for signals from the 100-pin floppy/front panel (FP)/IDE connector to the 60-

pin floppy/CDROM module connector in the flex bay

6.1 Hot-Swap SCSI Backplane Layout

The hot-swap SCSI backplane , resides in the drive bay of the server chassis SR1300. Drive

bays 1 and 2 each have a SCA2 type SCSI connector. The flex bay, (the third peripheral bay on

the right side on the front of the chassis) has two separate stacked connectors providing

support for either a third SCSI hard drive or an optional floppy/CDROM module. All three drive

bays have a Drive Activity/Fault LED. Additional connectors include a 100-pin floppy/FP/IDE

connector, which is cabled to the baseboard; a 34-pin connector, which is cabled to the front

panel; and a 6-pin power connector, which is connected to the power distribution board.

The following diagram shows the board layout of the backplane.

Figure 18. Hot-Swap SCSI Backplane Layout

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 78 79

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Intel BCW1USBPWB Datasheet Page 37