C-4
SCF424 Chassis Manual
3 Upgrade Connector
The upgrade connector, designated JP46 is a
firmware upgrade port.
Backplane
Main Power
4-Pin Connector
Pin# Definition
1 and 2
Ground
3
+5V
4
+12V
C-6 Front Connector and Pin
Definitions
1 Backplane Main Power Connector
The 4-pin connector, designated JP11, pro-
vides power to the backplane. See the table
on the right for pin definitions.
4 MG9071 Chip
The MG9071 is an enclosure management
chip used in the BPN-SAS-F424-A4 back-
plane.
2 Sideband Connector
The sideband connector is designated JP51
For SES-2 to work properly, an 8-pin sideband
cable must be connected to JP51. 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
5 - 8 SATA Connectors
SATA connectors #0 - #3 are used to connect
the SATA cables. The four ports are desig-
nated #0 - #3 and are compatible with both
SAS and SATA drives.
