Sun Oracle 4540 - Phaser Copystation, Service Manual, Page: 241 / 264

Appendix D Connector Pinouts D-15
D.9 Backplane To Disk Backplane Connector
The backplane to disk backplane connector has eight blades that support 30 amps
each. It also has 30 signal pins. See
TABLE D-13
for the blades and
TABLE D-14
for the
signal pins.
TABLE D-13
Backplane-to-Disk-Backplane Connector Power Blades
Pin Function
Blade 1 +12V
Blade 2 GND
Blade 3 +12V
Blade 4 GND
Blade 5 +12V
Blade 6 GND
Blade 7 GND
Blade 8 GND
TABLE D-14
Backplane-to-Disk-Backplane Connector Signal Pins
Pin Pin Name Pin Pin Name
A1 3.3V AUX C1 .3V AUX
A2 GND C2 GND
A3 VDD_RTC C3 SP_I2C_CLK
A4 INTRUSION_SW C4 SP_I2C_DAT
A5 PS2_ENABLE_L C5 PS2_BATT_L
A6 PS2_VIN_GOOD_L C6 PS0_POWEROK
A7 PS2_POWEROK C7 PS1_FAN_FAIL_L
A8 PS2_FAIL C8 PS1_POWEROK
A9 PS2_FAN_FAIL_L C9 PS1_PRESENT_L
B1 3.3V AUX D1 3.3V AUX
B2 GND D2 GND
B3 PS0_FAN_FAIL_L D3 3_3_AUX_SENSE_P