50 Astor II Chassis Subassembly Product Guide
Front Panel Cable ConnectorThe front panel connector and cable provide the chassis wide IMB bus and the electrical path
between the drive fault indicators (LEDs) and the SCSI backplane that controls them.
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Table 9. Front Panel Connector Pinout
Pin Name Description
1 GND Electrical ground (0V)
2 I2C_SDA I2C SDA (Serial Data)
3 NC No Connect
4 I2C_SCL I2C Serial Clock
5 PRI_SEC_L Primary Secondary Backplane
6 FAULT1_L Fault signal for drive 1 (logical drive 0)
7 FAULT2_L Fault signal for drive 2 (logical drive 1)
8 FAULT3_L Fault signal for drive 3 (logical drive 2)
9 FAULT4_L Fault signal for drive 4 (logical drive 3)
10 FAULT5_L Fault signal for drive 5 (logical drive 4)