SC815 Chassis Manual
C-6
C-7
Appendix C BPN-SAS3-815TQ Backplane Specications
I
2
C and SGPIO Modes and Jumper Settings
This backplane can utilize I
2
C or SGPIO. SGPIO is the default mode and can be
used without making changes to your jumpers. Use the following settings for I
2
C
mode.
I
2
C Jumpers
Jumper Setting Description
JP33 Pins 2-3 Controller ID
JP34 Pins 1-2:ID#0 Backplane ID
JP40 Open I
2
C Reset SD OUT
JP42 Pins 2-3 Backplane ID SDIN
JP50 Closed I
2
C Reset
SGPIO Jumpers (Default)
Jumper Setting Description
JP33 Pins 1-2 Controller ID
JP34 Pins 1-2:ID#0 Backplane ID
JP40 Closed I
2
C Reset SD OUT
JP42 Pins 1-2 Backplane ID SDIN
JP50 Open I
2
C Reset
C-6 Rear Jumpers and Pin Denitions
Explanation of Jumpers
To modify the operation of the backplane,
jumpers can be used to choose between
optional settings. Jumpers create shorts
between two pins to change the function
of the connector. Pin 1 is identied with
a square solder pad on the printed circuit
board. Note: On two pin jumpers, "Closed"
means the jumper is on and "Open" means
the jumper is off the pins.
Connector
Pins
Jumper
Setting
3 2 1
3 2 1
Figure C-2. Rear Jumpers
JP29
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