Hardware User's Guide

20 Intel® Integrated RAID Module RMS25PB080N and RMS25CB080N Hardware User’s Guide
Figure 11. Internal SFF8087 SAS/SATA signal 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 3. SFF8087 Internal Connector with one SGPIO Connector Pin-out
Internal connector
Controller Connector Pin-out Backplane Connector Pin-out
Port
SFF-8087 Pin # Pin Definition Pin # Pin Definition
A1 GND 7 GND Port 0
A2 RX0+ 6 TX+
A3 RX0- 5 TX-
B1 GND 4 GND
B2 TX0+ 2 RX+
B3 TX0- 3 RX-
B4 GND 1 GND
A4 GND 7 GND Port 1
A5 RX1+ 6 TX+
A6 RX1- 5 TX-
A7 GND 4 GND
B5 TX1+ 2 RX+
B6 TX1- 3 RX-
B7 GND 1 GND