Supero SC835 Chassis Series, Руководство пользователя

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C-5
Appendix C: SAS-833TQ Backplane Specifications
C-6 Front Connector and Pin Definitions
4. MG9072 Chip
The MG9072 is an enclosure management
chip that supports the SES-2 controller and
SES-2 protocols.
2. I
2
C Connectors
The I
2
C connectors, designated JP37 and
JP95, are used to monitor HDD activity and
status. See the table on the right for pin defi -
nitions.
I
2
C Connector
Pin Definitions
Pin# Definition
1 Data
2 Ground
3 Clock
4 No Connection
1. Upgrade Connector
The upgrade connector, designated JP69, is
used for manufacturer's diagnostic purposes
only.
3. Sideband Headers
The sideband headers are designated JP66
and JP68. For SES-2 to work properly, you
must connect an 8-pin sideband cable. See the
table to the right for pin definitions.
NOTE: SGPIO is the default setting for this
backplane.
Sideband Headers
Pin # Definition Pin # Definition
2 SGPIO:
SDIN
I
2
C:
Backplane
Addressing
(SB5)
1 Controller ID
(SB6)
4 SGPIO:
SDOUT
I
2
C: Reset
(SB4)
3 GND (SB2)
6 GND (SB3) 5
SGPIO:
SLOAD
I
2
C: SDA (SB1)
8 Backplane
ID (SB7)
7 SGPIO:
SCLOCK
I
2
C: SCL (SB0)
10 No Connec-
tion
9 No Connection