Hardware User's Guide

12 Intel® RAID Controller RS25FB044 Hardware User’s Guide
Figure 6. Intel
®
RAID Controller RS25FB044 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.
Table 2. SFF8088 External Connector Pin-out
Signal Pin Signal Pin
GND
A1
GND B1
RX 0+
A2
TX 0+ B2
RX 0-
A3
TX 0- B3
GND
A4
GND B4
RX 1+
A5
TX 1+ B5
RX 1-
A6
TX 1- B6
GND
A7
GND B7
RX 2+
A8
TX 2+ B8
RX 2-
A9
TX 2- B9
GND
A10
GND B10
RX 3+
A11
TX 3+ B11