D-4
SCF424 Chassis Manual
5. Upgrade Connector
The upgrade connector, designated JP69 is a
firmware upgrade port.
Backplane
Main Power
4-Pin Connector
Pin# Definition
1 and 2
Ground
3
+5V
4
+12V
D-6 Front Connector Pin
Definitions
1. - 2. Backplane Main Power Connectors
The 4-pin connectors, designated JP10 and
JP13 provide power to the backplane. See
the table on the right for pin definitions.
6. ATMEL Chip
The ATMEL chip is an enclosure manage-
ment chip used in the BPN-SAS-F424-A6
backplane.
3. - 4. Sideband Connectors
The sideband connectors are designated JP51
and JP53. For SES-2 to work properly, an
8-pin sideband cable must be connected to
JP51 and JP53. See the table to the right for
pin definitions.
Sideband Connector
Pin # Definition
Pin # Definition
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. - 12. SATA Connectors
SATA connectors #0 - #5 are used to connect
the SATA cables. The six ports are designated
#0 - #5 and are compatible with both SAS and
SATA drives.
