Usb Connectors; A.4 Usb Connectors - Sun Microsystems Sun Fire X4450 Service Manual

A.4

USB Connectors

Two Universal Serial Bus (USB) ports are located on the motherboard in a double-
stacked layout and can be accessed from the back panel.
FIGURE A-5
TABLE A-4
Pin
A1
A2
A3
A4
USB Connector Diagram
USB Connector Signals
Signal Description
+5 V (fused)
USB0/1-
USB0/1+
Ground
Pin Signal Description
B1 +5 V (fused)
B2 USB2/3-
B3 USB2/3+
B4 Ground
Appendix A Connector Pinouts A-5