18 Intel® RAID Controller RS25DB080 Hardware User’s Guide
The rebuild alarm tone functions differently. It remains ON during the rebuild. After the
rebuild completes, an alarm with a different tone sounds to signal that the rebuild is
complete. This is a one-time, non-repeating tone.
LED Placement and Function
The Intel
®
RAID Controller RS25DB080 contains the following LEDs:
• One surface-mounted heartbeat LED (Green Color) to indicate SAS2208 activity.
• Another surface-mounted system error LED (Amber Color) to indicate a
board error.
SAS/SATA Connectors
The Intel
®
Integrated RAID controller RS25DB080 provides two internal SFF8087
SAS/SATA signal connectors. Each SFF8087 connector provides support for four
SAS/SATA ports. The sideband signals are configured to adhere to the SFF-8485
Specifications for SGPIO support.
Figure 8. Intel
®
RAID Controller RS25DB080 SAS/SATA Connectors
SAS/SATA Connector Pin-out
Signal names are with respect to the host; the device connected to the host reverses the
signal names. Transmit pins connect to receive pins on the other device. The SAS/SATA
connector is keyed at pin 1. These pin-outs for the serial ATA connector are not
compatible with the legacy PATA connector.
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