Xerox 4540 Service Manual - Page 232
D.6 I/O-to-Disk Backplane Connectors
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D.6 I/O-to-Disk Backplane Connectors There are three connectors between the I/O and disk backplane: ■ Power Blade Connector, J23 to J50. See TABLE D-6 ■ Two High-Speed Dock Connectors, J24 to J49, and J25 to J51. See FIGURE D-6, TABLE D-7 and TABLE D-8. Power Blade Connector This connector has ten blades and 20 signal pins, with a 30A limit per blade. TABLE D-6 Power Blade Connector Pin Pin Name Pin Pin Name Pin Pin Name Pin Pin Name A1 FAN4_CTL0 B1 FAN4_CTL0 C1 FAN4_CTL1 D1 FAN4_CTL1 A2 FAN3_CTL0 B2 FAN3_CTL0 C2 FAN3_CTL1 D2 FAN3_CTL1 A3 FAN2_CTL0 B3 FAN2_CTL0 C3 FAN2_CTL1 D3 FAN2_CTL1 A4 FAN1_CTL0 B4 FAN1_CTL0 C4 FAN1_CTL1 D4 FAN1_CTL1 A5 FAN0_CTL0 B5 FAN0_CTL0 C5 FAN0_CTL1 D5 FAN0_CTL1 Blade 1 5V_DISK Blade 2 5V_DISK Blade 3 GND Blade 4 GND Blade 5 GND Blade 6 +12V Blade 7 GND Blade 8 +12V Blade 9 Gnd Blade 10 +12V D-6 Sun Fire X4500/X4540 Server Service Manual • May 2010