#6. Sideband Headers
The sideband headers are designated
JP51. For SES-2 to work properly, you must
connect an 8-pin sideband cable. See the
table to the right for pin defi nitions.
Sideband Headers
(JP51)
Pin # Defi nition Pin # Defi nition
2 Backplane
Addressing
(SB5)
1 Controller
ID (SB6)
4 Reset (SB4) 3 GND (SB2)
6 GND (SB3) 5 SDA (SB1)
8 Backplane
ID (SB7)
7 SCL (SB0)
10 No Connec-
tion
9 No Connec-
tion
#7. I
2
C Connectors
The I
2
C Connectors, designated JP44, are
used to monitor HDD activity and status. See
the table on the right for pin defi nitions.
I
2
C Connector
Pin Defi nitions
(JP44)
Pin# Defi nition
1 Data
2 Ground
3 Clock
4 No Connection
SAS Activity LED Header
Pin Defi nitions (JP26)
Pin # Defi nition Pin # Defi nition
1 ACT IN#0 6 ACT IN#4
2 ACT IN#1 7 ACT IN#5
3 ACT IN#2 8 ACT IN#6
4 ACT IN#3 9 ACT IN#7
5 Ground 10 Empty
#8. Activity LED Header
The activity LED header, designated JP26,
is used to indicate the activity status of each
SAS drive. For the Activity LED Header to
work properly, connect using a 10-pin LED
cable.
#9-#12. SAS Ports
The SAS ports are used to connect the SAS
drive cables. The four ports are designated
#0 - #4. Each port is also compatible with
SATA drives.
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