User`s manual

C-6
SAS 826TQ Backplane Specifications
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 configured to use SGPIO mode or restore your backplane to I
2
C
mode.
I
2
C Setting (Default)
Jumper Jumper Setting Note
JP65 2-3 Backplane ID SDIN #1
JP67 2-3 Backplane ID SDIN #2
JP74 2-3 Backplane ID SDIN #3
JP83 Closed I
2
C Reset #1
JP84 2-3 Controller ID #1
JP85 1-2:ID#0 Backplane ID #1
JP86 Closed I
2
C Reset #2
JP87 Open I
2
C Reset SDOUT #1
JP88 Open I
2
C Reset SDOUT #2
JP89 Closed I
2
C Reset #3
JP90 2-3 Controller ID #3
JP91 1-2:ID#0 Backplane ID #3
JP93 Open I
2
C Reset SDOUT #3
JP101 2-3 Controller ID #2
JP102 2-3:ID#1 Backplane ID #2