User manual

HARDWARE INSTALLATION
36
Figure 2-31, Activity/Fault LED I
2
C connector connected between
SATA RAID controller & 4 SATA HDD backplane.
Note:
Ci-Design has supported this feature in its 4-port 12-6336-
05A SATA ll backplane.
The following is the I
2
C signal name description for LCD & fault/ac-
tivity LED.
PIN Description PIN Description
1 power (+5V) 2 GND
3 LCD Module Interrupt 4 Protect Key
5 LCD Module Serial Data 6 Fault/Activity clock
7 Fault/Activity Serial Data 8 LCD Module clock
D: SGPIO bus
The preferred I/O connector for server backplanes is the Min SAS
4i (SFF-8087) internal serial-attachment connector. This connector
has eight signal pins to support four SATA drives and six pins for
the SGPIO (Serial General Purpose Input/Output) sideband signals
which use to replace the individual LED cable.