Chassis SC822 User's Manual I 2 C and SGPIO Modes and Jumper Settings The BPN-SAS-823TQ 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. 62 I2C Mode (Default) Jumper Jumper Setting Note JP18 Open Closed: Buzzer Reset (Default) JP29 Open Closed: Chip Reset (Default) JP33 Pins 2-3 Controller ID #1 JP34 Pins 1-2 Backplane ID #1 1-2: ID#0 2-3: ID#1 JP36 Pins 2-3 Controller ID #2 JP37 Pins 2-3 Backplane ID #2 1-2: ID#0 2-3:
ID#1 JP38 Closed I2C Reset #2 JP40 Open I2C Reset SDOUT#1 _ JP41 Open I2C Reset SDOUT#2 _ JP42 Pins 2-3 I2C Backplane ID SDIN#1 _ JP43 Pins 2-3 I2C Backplane ID SDIN#2 _ JP50 Closed I2C Reset #1 SGPIO Mode (Only) Jumper Jumper Setting Note JP18 Open Closed: Buzzer Reset (Default) JP29 Open Closed: MG9072 Reset (Default) JP33 Pins 1-2 Controller ID #1 JP34 Pins 1-2 Backplane ID #1 1-2: ID#0 2-3: ID#1 JP36 Pins 1-2 Controller ID #2 JP37 Pins 1-2 Backplane ID #2 1-2: ID#0 2-3: ID#1 JP38 Open I2C Reset #2 JP40 Closed I2C Reset SDOUT#1 _ JP41 Closed I2C Reset SDOUT#2 _ JP42 Pins 1-2 I2C Backplane ID SDIN#1 _ JP43 Pins 1-2 I2C Backplane ID SDIN#2 _ JP50 Open I2C Reset #1