Datasheet
2-4
SAS 823TQ Backplane User’s Guide
2-3 Front Jumper Locations and Pin Defi nitions
Front Jumper Locations
I
2
C and SGPIO Modes and Jumper Settings
This backplane can utilize I
2
C or SGPIO. I
2
C is the default mode and can be used
without making changes to your jumpers. The following information details which
jumpers must be confi gured to use SGPIO mode or restore your backplane to I
2
C
mode.
I
2
C Mode (Default)
Jumper Jumper Setting Note
JP18 Open Closed: Buzzer Reset (Default)
JP29 Open Closed: Chip Reset (Default)
JP33 2-3 Controller ID #1
JP34 1-2
Backplane ID #1
1-2: ID#0
2-3: ID#1
JP36 2-3 Controller ID #2
JP37 2-3
Backplane ID #2
1-2: ID#0
2-3: ID#1
JP38 Closed I
2
C Reset #2
JP40 Open I
2
C Reset _SDOUT#1
JP41 Open I
2
C Reset _SDOUT#2
JP42 2-3 I
2
C Backplane ID _SDIN#1
JP43 2-3 I
2
C Backplane ID _SDIN#2
JP50 Closed I
2
C Reset #1
M14
MT4
H6H10
JP10
JP13
JP18
JP25
J8
J7
J6
J5
J10
JP44
J12
JP26
H1
H3
JP47
JP46
JP41
JP33
JP34
JP40
JP38
JP50
U40
JP42
JP43
JP29
JP52
JP51
JP53
JP54
JP45
JP36
JP37
REV 1.00A
R
UPER
S
SAS823TQ
JP18
JP29
JP33
JP34
JP36
JP37
JP38
JP41
JP50
JP40
JP42
JP43